Epson Power Supply IC S1F70000 Technical Manual
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Epson Power Supply IC S1F70000 Technical Manual

Epson Power Supply IC S1F70000 Technical Manual

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MF302 - 13
POWER SUPPLY IC
IEEE1394 Controller
S1F70000 Series
S1R77801F00A
Technical Manual
Technical Manual

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Summary of Contents for Epson Power Supply IC S1F70000

  • Page 1 MF302 - 13 IEEE1394 Controller POWER SUPPLY IC S1R77801F00A S1F70000 Series Technical Manual Technical Manual...
  • Page 2 Seiko Epson. Seiko Epson reserves the right to make changes to this material without notics. Seiko Epson does not assume any liability of any kind arising out of any inaccuracies contained in this material or due to its application or use in any product or circuit and, further, there is no repersesnation that this material is applicable to products requiring high level reliability, such as, medical products.
  • Page 3 The information of the product number change Starting April 1, 2001 the product number has been changed as listed below. To order, please use the new product number. For further information, please contact Epson sales representative. Configuration of product number...
  • Page 4 S1F70000 Series Technical Manual...

  • Page 5: Table Of Contents

    2. DC/DC Converter & Voltage Regulator S1F76610 Series DESCRIPTION ................................2–1 FEATURES ................................2–1 APPLICATIONS ................................ 2–1 BLOCK DIAGRAM ..............................2–1 PIN ASSIGNMENTS ..............................2–2 PIN DESCRIPTIONS ..............................2–2 SPECIFICATIONS ..............................2–3 FUNCTIONAL DESCRIPTIONS ..........................2–11 TYPICAL APPLICATIONS ............................2–12 EPSON S1F70000 Series Technical Manual...
  • Page 6 PIN ASSIGNMENTS ..............................3–2 FUNCTIONAL DESCRIPTIONS ..........................3–3 LINEUP ..................................3–4 ABSOLUTE MAXIMUM RATINGS ..........................3–5 RECOMMENDED OPERATING CONDITIONS ....................... 3–5 ELECTRICAL CHARACTERISTICS ......................... 3–6 EXAMPLES OF REFERENCE EXTERNAL CONNECTION .................. 3–14 MECHANICAL DATA .............................. 3–14 EPSON S1F70000 Series Technical Manual...
  • Page 7 FUNCTIONAL DESCRIPTIONS ........................4–13 TYPICAL APPLICATIONS ..........................4–15 S1F76330 Series DESCRIPTION .............................. 4–22 FEATURES ..............................4–22 APPLICATIONS ............................4–22 LINEUP ................................4–22 BLOCK DIAGRAMS ............................4–23 PIN ASSIGNMENTS ............................. 4–23 PIN DESCRIPTIONS ............................. 4–23 SPECIFICATIONS ............................4–24 EPSON S1F70000 Series Technical Manual...
  • Page 8 BLOCK DIAGRAM ..............................4–42 PIN ASSIGNMENTS ............................... 4–43 PIN DESCRIPTIONS .............................. 4–44 FUNCTIONAL DESCRIPTIONS ..........................4–45 ABSOLUTE MAXIMUM RATINGS .......................... 4–47 ELECTRICAL CHARACTERISTICS ........................4–48 EXAMPLE OF EXTERNAL CONNECTION OF REFERENCE CIRCUIT ............... 4–52 MECHANICAL DATA .............................. 4–54 EPSON S1F70000 Series Technical Manual...
  • Page 9 TAPING INFORMATION ............................6 –8 REEL SPECIFICATIONS ............................6 –9 DEVICE POSITIONING ............................6 –9 EMBOSS CARRIER TAPING STANDARD (SOP5-14pin) TAPING INFORMATION ............................6 –11 REEL SPECIFICATIONS ............................6 –12 DEVICE POSITIONING ............................6 –12 EPSON S1F70000 Series Technical Manual...
  • Page 10 Contents EMBOSS CARRIER TAPING STANDARD (SOP2-24pin) TAPING INFORMATION ............................6 –14 REEL SPECIFICATIONS ............................6 –16 DEVICE POSITIONING ............................6 –16 EPSON S1F70000 Series Technical Manual...

  • Page 11: Introduction

    Introduction This book describes SEIKO EPSON's full lineup of use the detailed product descriptions in subsequent power supply ICs and includes a complete set of sections to confirm device specifications and charac- product specifications. Also included are sections on teristics.

  • Page 12: Selection Guide

    • Low operating current (Typ. 3.0 A). SOT89-3pin • Input voltage stability (Typ. 0.1%/V). • 3.20V positive output voltage regulator. S1F78100Y2C0 • Low operating current (Typ. 3.0 A). SOT89-3pin • Input voltage stability (Typ. 0.1%/V). EPSON S1F70000 Series Technical Manual...
  • Page 13 • Step-up switching regulator (from 1.5V to 3.0V). • Low operating voltage (Min. 0.9V). • Low operating current (Typ. 8 A). S1F76310M1B0 SOP3-8pin • High precision voltage detection function and battery backup function. • Built-in CR oscillator circuit. • Power-on clear function. EPSON S1F70000 Series Technical Manual...
  • Page 14 • Output format: COMS. SOP89-3pin • Low operating power (Typ. 2.0 A, V = 6.0V). • Voltage detection (Typ. 4.80V). S1F77210Y1K0 • Output format: COMS. SOP89-3pin • Low operating power (Typ. 2.0 A, V = 5.0V). EPSON S1F70000 Series Technical Manual...
  • Page 15 • Output format: N-ch open drain. SOP89-3pin • Low operating power (Typ. 2.0 A, V = 3.0V). • Voltage detection (Typ. 1.90V). S1F77200Y1N0 • Output format: N-ch open drain. SOP89-3pin • Low operating power (Typ. 2.0 A, V = 3.0V). EPSON S1F70000 Series Technical Manual...
  • Page 16 • Output format: N-ch open drain. SOP89-3pin • Low operating power (Typ. 1.5 A, V = 1.5V). • Voltage detection (Typ. 1.25V). S1F77220Y2D0 • Output format: P-ch open drain. SOP89-3pin • Low operating power (Typ. 1.5 A, V = 1.5V). EPSON S1F70000 Series Technical Manual...

  • Page 17: Dc/Dc Converter

    1. DC/DC Converter...

  • Page 18: S1F76600 Series

    Resistor connection. Open when using external clock OSC1 Resistor connection. Clock input when using external clock Positive supply (system V CAP1+ Positive charge-pump connection CAP1– Negative charge-pump connection 2 multiplier output Negative supply (system ground) EPSON 1–1 S1F70000 Series Technical Manual...

  • Page 19: Specifications

    –2.2V) is shown in the following figure. Note that diode D1 should have a maximum forward voltage of 0.6V with 1.0mA forward current. 2. R min can be varied depending on the input voltage. EPSON 1–2 S1F70000 Series Technical Manual...

  • Page 20: Electrical Characteristics

    — Clock frequency = 1M , V = –5V Output impedance = 10mA, V = –5V — Multiplication efficiency Peff = 5mA, V = –5V — OSC1 Input leakage current = –8V — — EPSON 1–3 S1F70000 Series Technical Manual...
  • Page 21 Ta = 25˚C = –5.0V Ta = 25 C –5 20kHz 10kHz –10 –15 –7 –6 –5 –4 –3 –2 –1 [mA] (3) Multiplier current vs. Input voltage (4) Output voltage vs. Output current EPSON 1–4 S1F70000 Series Technical Manual...
  • Page 22 Ta = 25 C = 7mA = 10mA –7 –6 –5 –4 –3 –2 –1 –7 –6 –5 –4 –3 –2 –1 (7) Output impedance vs. Input voltage (8) Output impedance vs. Input voltage EPSON 1–5 S1F70000 Series Technical Manual...
  • Page 23 Clock frequency Clock frequency Ta = 25 C Ta = 25 C = –5.0V = –3.0V Peff Peff [mA] [mA] (11) Multiplication efficiency/input current (12) Multiplication efficiency/input current vs. Output current vs. Output current EPSON 1–6 S1F70000 Series Technical Manual...

  • Page 24: Functional Descriptions

    (9) and (10). The relations = –5 V between R and f in characteristics graph (1) are expressed approximately with the following formula as (–5V) = (2V ) = –10 V EPSON 1–7 S1F70000 Series Technical Manual...

  • Page 25: Typical Applications

    = –5 10 F 10 F 10 F 10 F = –10 V = V ' = –15 V Potential levels (0 V) (–5 V) (–10 V) ' (–15 V) Primary stage Secondary stage EPSON 1–8 S1F70000 Series Technical Manual...
  • Page 26 = 3.8 V from a single input. = 0 V = –5 V = 0 V = –10 V = –5 V = 3.8 V 10 F 10 F = –10 V 10 F 10 F EPSON 1–9 S1F70000 Series Technical Manual...

  • Page 27: S1F76620 Series

    = 15V) (6) Low voltage operation : Suitable for battery drive (7) Built-in CR oscillator (8) SOP4-8pin ······························ S1F76620M0A0 Bare Chip ······························· S1F76620D0A0 BLOCK DIAGRAM Voltage conversion circuit OSC1 CR oscillator OSC2 CAP1+ CAP1– EPSON 1–10 S1F70000 Series Technical Manual...

  • Page 28: Pin Descriptions

    Power pin. (Plus side, System V CAP1– Pump up capacitor minus side connection pin for 2 times step-up. CAP1+ Pump up capacitor plus side connection pin for 2 times step-up. Output pin at the time of 2 times step-up. EPSON 1–11 S1F70000 Series Technical Manual...
  • Page 29 — (NC) — (NC) — (NC) 1134 Chip External Shape 2.60mm (0,0) 2.30mm Pad Assignment Pad aperture : 100 m 100 m Chip thickness : 400 m Note Do not bond the NC pad. EPSON 1–12 S1F70000 Series Technical Manual...

  • Page 30: Functional Descriptions

    : 2M to 680k )) When the external clock operates, make the pin OSC2 open as shown below and input the 50% duty of the ex- ternal clock from the pin OSC1. OSC1 External clock OSC2 Open EPSON 1–13 S1F70000 Series Technical Manual...

  • Page 31: Electrical Characteristics

    Under the conditions exceeding the above absolute maximum ratings, the IC may result in a permanent destruction. An operation for a long period under the conditions of the above absolute maximum ratings may deteriorate the reliability remarkably. Note 2 All voltage values are based on GND being 0V. EPSON 1–14 S1F70000 Series Technical Manual...
  • Page 32 = 1.5 to 2.2V): CAP1+ – OSC1 CAP1– – OSC2 * (DI (VF (IF=1mA) is recommended to be not more than 0.6V.) Recommended Circuit Note 3 varies with input voltage. See Characteristics Graph (15). Lmin EPSON 1–15 S1F70000 Series Technical Manual...
  • Page 33 Oscillation frequency = 1M Output impedance — = 10mA Step-up power conver- — = 5mA sion efficiency Input leak current — — OSC1 pin Note 1 All voltage values are based on GND being 0V. EPSON 1–16 S1F70000 Series Technical Manual...

  • Page 34: Characteristics Graph

    (2) Oscillation frequency vs. Temperature External resistance for oscillation Ta=25 C =10 F =40kHz =20kHz =10kHz Ta=25 C =10 F [mA] (3) Step-up circuit current consumption vs. (4) Output voltage (V ) vs. Output current 1 Input current EPSON 1–17 S1F70000 Series Technical Manual...

  • Page 35: S1F76640 Series

    ) vs. Output current 2 (6) Output voltage (V ) vs. Output current 3 Ta=25 C =10mA Ta=25 C =5mA (7) Output impedance vs. Input current 1 (8) Output impedance vs. Input voltage 2 EPSON 1–18 S1F70000 Series Technical Manual...
  • Page 36 0 1 2 3 4 5 6 7 8 9 10 1000 [mA] focs[kHz] (11) Step-up power conversion efficiency vs. (12) Step-up power conversion efficiency vs. Output current 3 Oscillation frequency 1 Input current vs. Output current 3 EPSON 1–19 S1F70000 Series Technical Manual...
  • Page 37 (13) Step-up power conversion efficiency vs. (14) Step-up power conversion efficiency vs. Oscillation frequency 2 Oscillation frequency 3 Ta=25 C =10 F 1000 10000 100000 (15) Step-up start voltage (1) vs. Load resistance EPSON 1–20 S1F70000 Series Technical Manual...

  • Page 38: Example Of Reference External Connection

    ) small when several pieces of the circuit shown in Figure 1 are connected. Parallel connection of n circuits reduces R to 1/n approximately. One piece of the smoothing capacitor can be commonly used. CAP1+ OSC1 CAP1– CAP1+ OSC2 OSC1 CAP1– OSC2 Figure 2 Parallel Connection EPSON 1–21 S1F70000 Series Technical Manual...
  • Page 39 (V ) can be used as the input in the next stage (V -GND). (See Figure 5.) First stage Next stage '=8V (2V) GND' GND(0V) Figure 5 Power Supply Relations in Series Connection (2) EPSON 1–22 S1F70000 Series Technical Manual...
  • Page 40 (the negative voltage conversion or the positive voltage conversion). Potential Relations Diagram CAP1+ – – OSC1 CAP1– –V +2 V • OSC2 Figure 7 Negative Voltage Conversion + Positive Voltage Conversion EPSON 1–23 S1F70000 Series Technical Manual...

  • Page 41: Measurement Circuit

    S1F76620 Series MEASUREMENT CIRCUIT CAP1+ – – OSC1 CAP1– OSC2 EPSON 1–24 S1F70000 Series Technical Manual...

  • Page 42: Mechanical Data

    0.25 0.35 0.45 (0.010) (0.014) (0.017) 0.05 0.15 0.25 (0.002) (0.006) (0.009) 0.55 (0.022) (0.252) (0.268) (0.283) (0.189) (0.197) (0.204) * for reference Note This drawing is subject to change without notice for improvement. EPSON 1–25 S1F70000 Series Technical Manual...
  • Page 43 2. DC/DC Converter & Voltage Regulator...

  • Page 44: Applications

    • Power supplies for microcomputers • Uninterruptable power supplies BLOCK DIAGRAM OSC1 oscilator OSC2 Reference Temperature voltge gradient generator selector Voltage CAP1– multiplier CAP1+ CAP2– Voltage regulator Voltage CAP2+ multiplier Multiplication Stabilization stage stage EPSON 2–1 S1F70000 Series Technical Manual...

  • Page 45: Pin Assignments

    3 multiplier output Voltage regulator output Voltage regulator output adjust Voltage regulator output ON/OFF control OSC2 Resistor connection. Open when using external clock OSC1 Resistor connection. Clock input when using external clock Positive supply (system V EPSON 2–2 S1F70000 Series Technical Manual...

  • Page 46: Specifications

    –1.2V and –2.2V) is shown in the following figure. Note that diode D1 should have a maximum forward voltage of 0.6V with 1.0mA forward current. 2. R min can be varied depending on the input voltage. EPSON 2–3 S1F70000 Series Technical Manual...
  • Page 47 = , R = 1M — OPR1 = , R = 1M , Stabilization current — 12.0 OPR2 = –15V Quiescent current TC2 = TC1 = V — — = 1M 16.0 Clock frequency 20.0 24.0 EPSON 2–4 S1F70000 Series Technical Manual...
  • Page 48 –0.3 See note. %/˚C Temperature gradient –0.7 –0.6 –0.5 , TC1, TC2, OSC1, and RV — — input leakage current Note (50 C)| – |V (0 C)| (25 C)| 50 C – 0 C EPSON 2–5 S1F70000 Series Technical Manual...
  • Page 49 = –5.0V = 40kHz –5 2 multiplier 20kHz –10 3 multiplier = 10kHz –15 –7 –6 –5 –4 –3 –2 –1 [mA] (3) Multiplier current vs. Input voltage (4) Output voltage vs. Output current EPSON 2–6 S1F70000 Series Technical Manual...
  • Page 50 = –5.0V 2 multiplier Peff 3 multiplier 3 multiplier 3 multiplier Peff 3 multiplier Peff 2 multiplier 2 multiplier [mA] [mA] (7) Multiplication efficiency/input current (8) Multiplication efficiency/input current vs. Output current vs. Output current EPSON 2–7 S1F70000 Series Technical Manual...
  • Page 51 3 multiplier = 20mA 2 multiplier = 30mA Ta = 25 C = –5.0V –7 –6 –5 –4 –3 –2 –1 1000 [kHz] (11) Output impedance vs. Input voltage (12) Multiplication efficiency vs. Clock frequency EPSON 2–8 S1F70000 Series Technical Manual...
  • Page 52 Ta = 25 C Ta = 25 C –5.900 –2.900 –2.950 –5.950 –3.000 –6.000 0.0001 0.0010 0.0100 0.1000 0.0001 0.0010 0.0100 0.1000 (15) Output voltage vs. Output current (16) Output voltage vs. Output current EPSON 2–9 S1F70000 Series Technical Manual...
  • Page 53 High (V — High (V (high impedance) operational Notes 1. The definition of LOW for P differs from that for TC1 and TC2. 2. The temperature gradient affects the voltage between V and V EPSON 2–10 S1F70000 Series Technical Manual...

  • Page 54: Functional Descriptions

    = 100 k to 1 M (+5V) = 0 V = –5 V (–5V) – = 2V = –10 V CAP2 Tripled voltage potential levels = 0 V = –5 V = 3V = –15 V EPSON 2–11 S1F70000 Series Technical Manual...

  • Page 55: Typical Applications

    Only the single output smoothing capacitor, C3, is re- = 0 V 10 F 10 F 100 k 10 F 10 F 10 F = –10 V = –15 V = –5 V 10 F EPSON 2–12 S1F70000 Series Technical Manual...
  • Page 56 • For a voltage tripler, = 8.2 V 10 F = 10 – (3 0.6) = 8.2V = –5 V • For a voltage doubler, = 5 – (2 0.6) = 3.8V EPSON 2–13 S1F70000 Series Technical Manual...
  • Page 57 10 F 10 F 10 F 10 F 10 F = –15 V = 8.2 V 10 F = –5 V Potential levels = 8.2V = 0 V = –5 V = –15 V EPSON 2–14 S1F70000 Series Technical Manual...

  • Page 58: Description

    = –5.0 V 16-pin DIP during four-time boosting, Typ.) APPLICATIONS • High output capacity : 20 mA (Max.) • Power supply of medium- and small-capacity LCD panels • Regulated power supply of battery driven devices EPSON 2–15 S1F70000 Series Technical Manual...

  • Page 59: Block Diagram

    BLOCK DIAGRAM Reference OFF1 voltage Power-off circuit control circuit OFF2 Clock Booster control generator circuit Voltage circuit regulation circuit Voltage converter circuit Figure 2.1 Block diagram PIN DESCRIPTIONS OFF1 OFF2 Figure 2.2 S1F76540M0A0/C0A0 pin assignments EPSON 2–16 S1F70000 Series Technical Manual...
  • Page 60 Power-off control input (1) OFF1 11, 12 Power voltage (negative) Two- or four-time booster capacitor positive pin Two-time booster capacitor negative pin Four-time booster capacitor negative pin Three-time booster capacitor negative pin Three-time booster capacitor positive pin EPSON 2–17 S1F70000 Series Technical Manual...
  • Page 61 The S1F76540 common power supply has the highest potential (V ). The electrical poten- tial given by this specification is based on V = 0 V. Take care to avoid a potential problem during connection to a peripheral system. EPSON 2–18 S1F70000 Series Technical Manual...

  • Page 62: Electrical Characteristics

    N = Boost time, FC = V during –22/N –2.4 voltage no loading Boost output voltage –22 Regulator input voltage –22 –2.4 = 0, V = –22 V Regulator output voltage –2.4 = 1M EPSON 2–19 S1F70000 Series Technical Manual...
  • Page 63 Regulated output (*1) R saturation resistance Ta = 25 C –20 V < V < –10 V, I = 1 mA Regulated output (*2) V = –9 V voltage stability Ta = 25 C EPSON 2–20 S1F70000 Series Technical Manual...
  • Page 64 50 C – 0 C (25 C) | The reference voltage and temperature coefficient of the chip products may vary depending on the mold- ings used on each chip. Use these chips only after the temperature test. EPSON 2–21 S1F70000 Series Technical Manual...

  • Page 65: Functional Descriptions

    High Output 16.0 kHz (Typ.) I Approx. 4 V Approx. 1/4 See Figure A1. See Figure A1. *1 See the DC characteristics table for current consumption. *2 See Section Page 2-32 for the output ripple definition and calculation. EPSON 2–22 S1F70000 Series Technical Manual...
  • Page 66 Figure A1 Characteristic chart: Capacitance vs. output impedance when 4X pressure is applied NOTE: This characteristic chart simply indicates an approximate trend in the characteristics, which may vary depending on evaluation environment, parts used, and other factors. EPSON 2–23 S1F70000 Series Technical Manual...
  • Page 67 • When connecting a capacitor to the C1P, C2P, C1N, C2N, C3N, or V pin for voltage conversion, close the capacitor to the IC package as much as possible to minimize the wiring length. EPSON 2–24 S1F70000 Series Technical Manual...
  • Page 68 As shown by equation (1), any output voltage can be set voltage that is explained in the “reference voltage cir- by the ratio of external division resistors R1 and R2. cuit” section. The sum of division resistance is recommended to be EPSON 2–25 S1F70000 Series Technical Manual...
  • Page 69 If the reference voltage is -1.5 V, the division resistance ratio can be obtained from equation (1) as follows: (R1 + R2) / R2 = (–18 V) (–1.5 V) = 12 Therefore, R1 and R2 are: R1 = 75 k R2 = 825 k EPSON 2–26 S1F70000 Series Technical Manual...
  • Page 70 • The regulation voltage adjustment input (pin RV) has the very high input impedance, and its noise insertion can drop the regulator stability. As shown in Figure 2.5, shield the cable between the division resistor and RV pin or use a cable as short as possible between them. EPSON 2–27 S1F70000 Series...
  • Page 71 • When using external system signals for power-on control, start to control the power only when V voltage becomes stable after power-on. Unstable V voltage may destroy the IC permanently during on/off control. OFF1 OFF1 OFF2 OFF2 Figure 2.6 Start timing of power-off control EPSON 2–28 S1F70000 Series Technical Manual...

  • Page 72: Characteristics Graph

    Power conversion efficiency (Peff) vs. Output voltage (V Power conversion efficiency (Peff) vs. Output voltage (V Input current (I ) vs. Output voltage (V Input current (I ) vs. Output voltage (V Figure 2.7 Characteristics graphs EPSON 2–29 S1F70000 Series Technical Manual...

  • Page 73: Application Circuit Examples

    1 When used in the High Output mode • Connect the FC pin to the V pin. 2 When changing the temperature coefficient (C • Change the TC1 and TC2 pin setup by following the definition of Table 2.7. EPSON 2–30 S1F70000 Series Technical Manual...
  • Page 74 • As the output at V pin is unstable, it can contain ripple components as shown in Figure 2.10. The ripple voltage ) increases according to the load current, and it can roughly be calculated by equation (4). EPSON 2–31 S1F70000 Series...
  • Page 75 ) for booster out- where two S1F76540s are parallelly connected. put can be used commonly in the parallel connection. When using the regulator, use only one of “n” OFF1 OFF1 OFF2 OFF2 Figure 2.11 Parallel connection example EPSON 2–32 S1F70000 Series Technical Manual...
  • Page 76 Figure 2.13 provides the creases due to the diode forward voltage drop (V ), the potential relationship. diodes having a smaller V are recommended to use. OFF1 OFF2 Figure 2.12 Wiring example for 6-time boosting using diodes EPSON 2–33 S1F70000 Series Technical Manual...
  • Page 77 1 When used in the High Output mode Connect the FC pin to the V pin. 2 When changing the temperature coefficient (C Change the TC1 and TC2 pin setup by following the definition of Table 2.7. EPSON 2–34 S1F70000 Series Technical Manual...
  • Page 78 ) to turn off all circuits. OFF2 Two-time boosting • To boost up a voltage two times, remove capacitor C1 and diode D1 of Figure 2.14, and connect the anode of diode D2 to the V pin. EPSON 2–35 S1F70000 Series Technical Manual...
  • Page 79 To set another temperature coefficient, use a the temperature coefficient of the internal reference thermistor resistor or others as shown in Figure 2.16. OFF1 OFF2 Figure 2.16 Wiring example when changing the regulator temperature coefficient EPSON 2–36 S1F70000 Series Technical Manual...
  • Page 80 • The thermistor resistor (RT) has the non-linear temperature characteristics. To correct them to the linear char- acteristics, insert the RP as shown Figure 2.16. Application in other setup conditions • When used in the High Output mode, connect the FC pin to the V pin. EPSON 2–37 S1F70000 Series Technical Manual...

  • Page 81: Description

    • Low voltage operation ..Optimum for battery drive • Built-in CR oscillator • SSOP2-16pin ..S1F76640M0A0 Bare Chip ....S1F76640D0A0 • Radiation-resistant design has not been provided for this specification. EPSON 2–38 S1F70000 Series Technical Manual...

  • Page 82: Block Diagram

    S1F76640 Series BLOCK DIAGRAM CAP3+ CAP2– CAP2+ CAP1– CAP1+ OSC1 CR oscillator OSC2 Step-up circuit Stabilization circuit Figure 3-1 Block Diagram EPSON 2–39 S1F70000 Series Technical Manual...

  • Page 83: Pin Assignments

    S1F76640 Series PIN ASSIGNMENTS SSOP2-16pin CAP3+ CAP2+ CAP2– (GND)V CAP1+ OSC1 CAP1– OSC2 Figure 4-2 Pin Assignments of SSOP2-16pin EPSON 2–40 S1F70000 Series Technical Manual...

  • Page 84: Pin Descriptions

    Pump up capacitor plus side connection pin for 4 times step-up. Output pin at 3 times step-up time (to be short-circuited to V Output pin at 3 times step-up time Stabilization circuit input pin EPSON 2–41 S1F70000 Series Technical Manual...

  • Page 85: Chip External Shape And Pad Center Coordinates

    2.30mm CAP1– –892.0 CAP1+ –514.0 CAP2– 182.0 Figure 4-4 Pad Assignments CAP2+ 372.0 Chip size : 2.30mm 2.60mm 0.30mm CAP3+ 750.0 PAD aperture : 100 m 100 m 942.0 DIE number : F76640D0A0 1134.0 EPSON 2–42 S1F70000 Series Technical Manual...

  • Page 86: Functional Descriptions

    V and V pins outside. When GND is 0 and V is 5, the relations between the input voltage and the output voltage are as shown in Figures 5-3, 5-4 and 5-5. EPSON 2–43 S1F70000 Series Technical Manual...
  • Page 87 (microprocessor, etc.) When P is high (V ), V output is turned on, and when is Low (GND), it is turned off. When the control is not necessary, P is fixed to High (V EPSON 2–44 S1F70000 Series Technical Manual...
  • Page 88 When this mode is selected at a series connection, the first stage clock can drive the next stage IC and this mode is effective for reducing the power consumption of the next stage IC. (See Figure 8.4) Note 5 : Select this mode for boosting only. And the current consumption can be reduced. EPSON 2–45 S1F70000 Series Technical Manual...

  • Page 89: Absolute Maximum Ratings

    ) are for stabilizing and outputting boosted voltages. So, they are not used to apply voltage from outside. When voltage is applied from outside for unavoidable reasons, limit the voltage to the rated voltage mentioned above or less. EPSON 2–46 S1F70000 Series...

  • Page 90: Recommended Operating Conditions

    (D1(VF(1F=1mA) is recommended to be not more than 0.6V.) Figure 6-2-1 Recommended Circuit Diagram for Low Voltage Operation (Example of 4 times step-up circuit) Note 3 : min varies with input voltage. See Characteristics Graph (15). EPSON 2–47 S1F70000 Series Technical Manual...

  • Page 91: Electrical Characteristics

    2.30 2.80 3.30 TC2=TC1=GND,Ta=25˚C 1.70 2.00 2.30 TC2=V ,TC1=GND,Ta=25˚C Temperature gradient –0.45 –0.27 –0.10 %/˚C =5V,V =20V –0.60 –0.42 –0.25 %/˚C (Note 5) –0.70 –0.55 –0.40 %/˚C Input leak current — — ,TC1,TC2,OSC1,RV pins EPSON 2–48 S1F70000 Series Technical Manual...
  • Page 92 The calculation formula of C is as follows: (50˚C) – V (0˚C) 100 (%/˚C) 50˚C – 0˚C (25˚C) Measurement Circuit (Described on S1F76640M0A0) Step-up circuit characteristic measurement circuit – – – – OPR1 Stabilization circuit characteristic measurement circuit EPSON 2–49 S1F70000 Series Technical Manual...
  • Page 93 S1F76640 Series Input leak current measurement circuit Connection to each measurement pin EPSON 2–50 S1F70000 Series Technical Manual...

  • Page 94: Characteristics Graph

    4 times step-up =40kHz C1=C2=2.2 3 times step-up C3=10 =20kHz 2 times step-up =10kHz Ta=25˚C C1 to C4=10 (4) Output voltage (V ) vs. Output current 1 (3) Step-up circuit current consumption vs. Input voltage EPSON 2–51 S1F70000 Series Technical Manual...
  • Page 95 4 times step-up 4 times step-up 3 times step-up 3 times step-up 2 times step-up 2 times step-up Ta=25˚C Ta=25˚C =5mA =10mA (7) Output impedance vs. Input voltage 1 (8) Output impedance vs. Input voltage 2 EPSON 2–52 S1F70000 Series Technical Manual...
  • Page 96 1 to 1 to 2 times step-up I 1000 (11) Step-up power conversion efficiency vs. Output current 3 (12) Step-up power conversion efficiency - Os vs.illation Input current vs. Output current 3 frequency 1 EPSON 2–53 S1F70000 Series Technical Manual...
  • Page 97 Oscillation frequency 2 efficiency vs. Oscillation frequency 3 Ta=25˚C =20V 1 to =12V Ta=25˚C to C 1000 10000 100000 (15) Step-up start voltage (1) vs. Load resistance (16) Stabilization output saturation resistance vs. Load current EPSON 2–54 S1F70000 Series Technical Manual...
  • Page 98 ) vs. Output current 2 4.00 3.95 –10 3.90 –20 Ta=25˚C –30 –40 –50 3.85 10.0 100.0 –40 –20 80 100 Ta[˚C] (19) Output voltage (V ) vs. Output current 3 (20) Reference voltage vs. Temperature EPSON 2–55 S1F70000 Series Technical Manual...

  • Page 99: Mechanical Data

    INDEX 0˚ 10˚ 0.15 0.05 +0.003 (0.006 –0.002 0.36 0.1 +0.004 (0.016) +0.007 (0.014 (0.031) 0.5 0.2 (0.02 –0.003 –0.008 0.9(0.035) Note : This dimensional drawing is subject to change without notice for improvement. EPSON 2–56 S1F70000 Series Technical Manual...

  • Page 100: Application Example

    It is also effective to make the R value small for reducing noise influence. (In this case, however, more current comes to be consumed at R EPSON 2–57 S1F70000 Series Technical Manual...

  • Page 101: Series Connection

    Figure 8.4 shows an example of the series connection to get V =25V from V =5V and to stabilize it. – CAP3+ CAP3+ CAP2+ – CAP2+ – CAP2– – CAP2– CAP1+ – CAP1+ OSC1 CAP1– – OSC1 CAP1– OSC2 OSC2 Figure 8.4 Series Connection EPSON 2–58 S1F70000 Series Technical Manual...
  • Page 102 In case of series connection, the voltage V ’-V ’ in Figure 8.5) of the IC, for which the stabilization circuit operates, has temperature gradient. This means that V changes at the following rate as temperature changes: ’ (25˚C) – GND’) EPSON 2–59 S1F70000 Series Technical Manual...
  • Page 103 However, the output impedance is higher than in case of connection of either one only (the negative voltage conver- sion or the positive voltage conversion). CAP3+ CAP2+ – – CAP2– – CAP1+ – + – – OSC1 CAP1– OSC2 Figure 8.7 Negative Voltage Conversion + Positive Voltage Conversion EPSON 2–60 S1F70000 Series Technical Manual...
  • Page 104 When a thermistor is used for RT, it can make the temperature gradient of V larger.. Note 2 : The thermistor temperature characteristics are non-linear but can be corrected to linear ones when the resistor RP is connected to the thermistor in parallel. EPSON 2–61 S1F70000 Series Technical Manual...
  • Page 105 ) Electronic Volume Circuit Voltage stabilized output (V – CAP3+ or V CAP2+ or V – – (74HC4051) CAP2– CAP1+ – CAP1– OSC1 OSC2 XPOF CTRL0 CTRL1 CTRL2 Negative voltage input Positive voltage input Figure 8.9 EPSON 2–62 S1F70000 Series Technical Manual...
  • Page 106 Figure 8.10 Configuration Example of 6 times step-up Circuit with Diode 2 · V 4 · V 6 · V 6 · V –2 · V Figure 8.11 Potential Relations Diagram of 6 times Step-up Circuit with Diode EPSON 2–63 S1F70000 Series Technical Manual...
  • Page 107 3. Voltage Regulator...

  • Page 108: Description

    Typ. 1.0V The package is a SOT89-3pin plastic package. • Small output voltage temperature coefficient : Typ. +100ppm/˚C • Wide operating voltage range : 15V Max. BLOCK DIAGRAM (2pin) (3pin) – (1pin) EPSON 3–1 S1F70000 Series Technical Manual...

  • Page 109: Pin Assignments

    S1F78100Y Series PIN DESCRIPTIONS Pin No. Pin name Description Input voltage pin (minus side) Input voltage pin (plus side) Output voltage pin PIN ASSIGNMENTS SOT89-3pin EPSON 3–2 S1F70000 Series Technical Manual...

  • Page 110: Functional Descriptions

    The output voltage is fixed inside and is de- with the built-in resistors R and R connected between cided with the following formula: ·V (Output control transistor) (2pin) (3pin) – (Operational amplifier) (1pin) EPSON 3–3 S1F70000 Series Technical Manual...

  • Page 111: Lineup

    2.73 2.80 2.87 S1F78100Y2L0 2.53 2.60 2.67 S1F78100Y2F0 2.15 2.20 2.25 S1F78100Y2G0 1.75 1.80 1.85 S1F78100Y2H0 1.45 1.50 1.55 Note : Other output voltages than those listed in the above table are also applicable. EPSON 3–4 S1F70000 Series Technical Manual...

  • Page 112: Absolute Maximum Ratings

    –65 to +150 temperature Soldering temperature 260 • 10 Tsol ˚C • s and time (at leads) RECOMMENDED OPERATING CONDITIONS Parameter Symbol Min. Typ. Max. Unit Input voltage –V – – Output current 0.01 – – EPSON 3–5 S1F70000 Series Technical Manual...

  • Page 113: Electrical Characteristics

    · V =6.0V to 15.0V =–10mA Ta= –30˚C to +85˚C (Same temperature condition) Load stability — — =7.0V =–1mA to –50mA Supply voltage rejection =7.0V, fin=40kHz — –40 — ratio =10 F, I =–5mA EPSON 3–6 S1F70000 Series Technical Manual...
  • Page 114 =5.0V to 15.0V =–10mA Ta= –30˚C to +85˚C (Same temperature condition) Load stability — — =6.0V = –1mA to –40mA Supply voltage rejection =6.0V, fin=40kHz — –40 — ratio =10 F, I = –5mA EPSON 3–7 S1F70000 Series Technical Manual...
  • Page 115 · V =5.0V to 15.0V =–10mA Ta= –30˚C to +85˚C (Same temperature condition) Load stability — — =5.0V =–1mA to –30mA Supply voltage rejection =5.0V, fin=40kHz — –40 — ratio =10 F, I =–5mA EPSON 3–8 S1F70000 Series Technical Manual...
  • Page 116 =4.0V to 15.0V = –10mA Ta= –30˚C to +85˚C (Same temperature condition) Load stability — — =5.0V = –1mA to –30mA Supply voltage rejection =5.0V, fin=40kHz — –40 — ratio =10 F, I = –5mA EPSON 3–9 S1F70000 Series Technical Manual...
  • Page 117 · V =4.0V to 15.0V =–10mA Ta= –30˚C to +85˚C (Same temperature condition) Load stability — — =5.0V =–1mA to –30mA Supply voltage rejection =5.0V, fin=40kHz — –40 — ratio =10 F, I =–5mA EPSON 3–10 S1F70000 Series Technical Manual...
  • Page 118 · V =3.0V to 15.0V =–10mA Ta= –30˚C to +85˚C (Same temperature condition) Load stability — — =3.0V =–1mA to –10mA Supply voltage rejection =3.0V, fin=40kHz — – 40 — ratio =10 F, I =–5mA EPSON 3–11 S1F70000 Series Technical Manual...
  • Page 119 · V =3.0V to 15.0V =–10mA Ta= –30˚C to +85˚C (Same temperature condition) Load stability — — =3.0V =–1mA to –10mA Supply voltage rejection =3.0V, fin=40kHz — –40 — ratio =10 F, I =–5mA EPSON 3–12 S1F70000 Series Technical Manual...
  • Page 120 S1F78100Y Series Note : Circuit Diagram for Measuring Supply Voltage Rejection Ratio Characteristic =50kHz S1F78100Y Series =10 F =10mA EPSON 3–13 S1F70000 Series Technical Manual...

  • Page 121: Examples Of Reference External Connection

    S1F78100Y Series EXAMPLE OF REFERENCE EXTERNAL CONNECTION S1F78100Y Series (2pin) (3pin) Input voltage Output voltage (1pin) MECHANICAL DATA S1F78100Y SOT89-3pin Reference 4.5 0.1 1.8Max. 0.48Max. 0.48Max. 0.53Max. (Unit : mm) EPSON 3–14 S1F70000 Series Technical Manual...

  • Page 122: Characteristics Graph

    S1F78100Y Series CHARACTERISTICS GRAPH S1F78100Y2B0 –Ta –V Ta=25˚C =0mA –40 –20 Ta [˚C] –V )–Ta –V )–I =4.9V Ta=25˚C =4.9V = –50mA = –10mA –40 –20 –50 –40 –30 –20 –10 Ta [˚C] [mA] EPSON 3–15 S1F70000 Series Technical Manual...
  • Page 123 S1F78100Y Series –Ta –V =–10mA = –50mA Ta=25˚C –40 –20 Ta [˚C] –I –Ta Ta=25˚C –50mA I –1mA –40 –20 –50 –40 –30 –20 –10 Ta [˚C] [mA] EPSON 3–16 S1F70000 Series Technical Manual...
  • Page 124 S1F78100Y Series S1F78100Y2G0 –Ta –V Ta=25˚C =0mA –40 –20 Ta [˚C] –V )–Ta –V )–I =1.75V Ta=25˚C =1.75V = –5mA = –1mA –40 –20 –10 –8 –6 –4 –2 Ta [˚C] [mA] EPSON 3–17 S1F70000 Series Technical Manual...
  • Page 125 S1F78100Y Series –V –Ta = –10mA = –30mA Ta=25˚C =–1mA –40 –20 Ta [˚C] –Ta –I Ta=25˚C –10mA 10 –1mA –40 –20 –10 –8 –6 –4 –2 Ta [˚C] [mA] EPSON 3–18 S1F70000 Series Technical Manual...
  • Page 126 S1F78100Y Series S1F78100Y2H0 –Ta –V Ta=25˚C =0mA –40 –20 Ta [˚C] –V )–Ta –V )–I =1.45V =–3mV = –1mV Ta=25˚C =1.45V –40 –20 –5 –4 –3 –2 –1 Ta [˚C] [mA] EPSON 3–19 S1F70000 Series Technical Manual...
  • Page 127 S1F78100Y Series –Ta –V =–1mA = –30mA = –10mA Ta=25˚C –40 –20 Ta [˚C] –I –Ta Ta=25˚C 1mA I 30mA –10 –8 –6 –4 –2 –40 –20 [mA] Ta [˚C] EPSON 3–20 S1F70000 Series Technical Manual...

  • Page 128: Description

    Product ( A) ( C) Input Output S1F79100Y1H0 –1.5 S1F79100Y1G0 –1.8 S1F79100Y1D0 –15 –3.0 –40 to +85 S1F79100Y1P0 –4.0 S1F79100Y1B0 –5.0 PIN ASSIGNMENTS BLOCK DIAGRAM (2 pin) S1F79100Y series – (1 pin) (3 pin) EPSON 3–21 S1F70000 Series Technical Manual...

  • Page 129: Specifications

    = –1.5V, I = 5mA — 0.25 0.60 differential Input voltage stabilization = –3.0V to –15.0V, — 0.10 — ratio • V = 5mA = –3.0V, — 20.0 — Output voltage drift = 1mA to 5mA EPSON 3–22 S1F70000 Series Technical Manual...
  • Page 130 = 10mA — 0.23 0.46 differential Input voltage stabilization = –4.0V to –15.0V, — 0.10 — ratio • V = 10mA, Isothermal = –5.0V, — 30.0 — Output voltage drift = 1mA to 30mA EPSON 3–23 S1F70000 Series Technical Manual...
  • Page 131 = 10mA — 0.17 0.34 differential Input voltage stabilization = –6.0V to –15.0V, — 0.10 — ratio • V = 10mA, Isothermal = –7.0V, — 50.0 — Output voltage drift = 1mA to 50mA EPSON 3–24 S1F70000 Series Technical Manual...
  • Page 132 –10 –15 Ta [˚C] vs. Ta vs. V Ta = 25˚C = 4.9V = –4.9V = 50mA = 10mA –40 –20 Ta [˚C] [mA] – V | vs. Ta – V | vs. I EPSON 3–25 S1F70000 Series Technical Manual...
  • Page 133 Ta = 25˚C –4.5 –40 –20 –5 –10 –15 Ta [˚C] vs. Ta vs. V –5.5 Ta = 25˚C = –7V = –7V 50mA –5.0 –4.5 –40 –20 Ta [˚C] [mA] vs. Ta vs. I EPSON 3–26 S1F70000 Series Technical Manual...
  • Page 134 –10 –15 Ta [˚C] vs. Ta vs. V Ta = 25˚C = –3.9V = –3.9V = 30mA = 10mA –40 –20 [mA] Ta [˚C] – V | vs. Ta – V | vs. I EPSON 3–27 S1F70000 Series Technical Manual...
  • Page 135 = 30mA –3.5 –40 –20 80 100 –5 –10 –15 Ta [˚C] vs. Ta vs. V –4.5 = –7V Ta = 25˚C 30mA = –7V –4.0 –3.5 –40 –20 Ta [˚C] [mA] vs. Ta vs.I EPSON 3–28 S1F70000 Series Technical Manual...
  • Page 136 –10 –15 Ta [˚C] vs. Ta vs. V Ta = 25˚C = –2.93V = –2.93V = 30mA = 10mA –40 –20 Ta [˚C] [mA] – V | vs. Ta – V | vs. I EPSON 3–29 S1F70000 Series Technical Manual...
  • Page 137 –2.5 –40 –20 80 100 –5 –10 –15 Ta [˚C] vs. Ta vs. V –3.5 = –5V Ta = 25˚C 30mA = –5V –3.0 –2.5 –40 –20 Ta [˚C] [mA] vs. Ta vs. I EPSON 3–30 S1F70000 Series Technical Manual...
  • Page 138 –10 –15 Ta [˚C] vs. Ta vs. V Ta = 25˚C = –1.75V = –1.75V = 5mA = 1mA –40 –20 [mA] Ta [˚C] – V | vs. Ta – V | vs. I EPSON 3–31 S1F70000 Series Technical Manual...
  • Page 139 = 30mA –1.5 –40 –20 –5 –10 –15 Ta [˚C] vs. Ta vs. V –2.5 = –3V Ta = 25˚C 10mA = –3V –2.0 –1.5 –40 –20 Ta [˚C] [mA] vs. Ta vs. I EPSON 3–32 S1F70000 Series Technical Manual...
  • Page 140 –10 –15 Ta [˚C] vs. Ta vs. V Ta = 25˚C = –1.45V = –1.45V = 5mA = 1mA –40 –20 [mA] Ta [˚C] – V | vs. Ta – V | vs. I EPSON 3–33 S1F70000 Series Technical Manual...
  • Page 141 = 10mA –1.0 –40 –20 –5 –10 –15 Ta [˚C] vs. Ta vs. V –2.0 = –3V Ta = 25˚C 10mA = –3V –1.5 –1.0 –40 –20 Ta [˚C] [mA] vs. Ta vs. I EPSON 3–34 S1F70000 Series Technical Manual...

  • Page 142: Package Markings

    V Enhancement mode Depletion mode – Depletion mode The following equation shows the relationship between and V = — — — — — V EPSON 3–35 S1F70000 Series Technical Manual...

  • Page 143: Typical Applications

    1. It reduces the output voltage by V , the forward volt- age drop across the diode. 2. It is sensitive to fluctuations in V due to differences S1F79100Y in diodes, operating temperatures and I EPSON 3–36 S1F70000 Series Technical Manual...
  • Page 144 Note) Temperatures during reflow soldering must re- S1F79100Y main within the limits set out under LSI Device Precautions in this catalog. Do not immerse QFP and SOT89 packages during soldering, as the rapid temperature gradient during dipping can cause damage. EPSON 3–37 S1F70000 Series Technical Manual...
  • Page 145 4. DC/DC Switching Regulators...

  • Page 146: Description

    Input Output S1F76310M1A0 SOP3-8pin S1F76310M1K0 On-chip CR SOP3-8pin S1F76310M1B0 (0.9 Min.) oscillator SOP3-8pin S1F76310M1L0 SOP3-8pin S1F76380M1L0 On-chip CR – 4.0 mV/˚C SOP3-8pin S1F76380M1H0 (0.9 Min.) oscillator – 4.5 mV/˚C SOP3-8pin EPSON 4–1 S1F70000 Series Technical Manual...

  • Page 147: Block Diagrams

    S1F76300 Series BLOCK DIAGRAMS S1F76310 Series PWCR Reference voltage oscillator generator Control switch S1F76380 Series PWCR – Reference voltage Control CONT generator switch – oscillator EPSON 4–2 S1F70000 Series Technical Manual...

  • Page 148: Pin Assignments

    Comparator input CONT Step-up input voltage Power save. See note 2. Notes 1. See voltage detection and power-on clear in the functional description. 2. See standby mode and battery backup in the functional description. EPSON 4–3 S1F70000 Series Technical Manual...

  • Page 149: Specifications

    Soldering temperature (for 10 s). See note. Tsol ˚C Notes Temperatures during reflow soldering must remain within the limits set out in LSI Device Precautions. Never use solder dip to mount S1F70000 series power supply devices. EPSON 4–4 S1F70000 Series Technical Manual...
  • Page 150 = 3.0V, Backup switching leakage current — — = 2.0V RST Low-level output current = 0.9V, V = 0.2V 0.05 0.15 — PS pull-up current = 1.5V — — Multiplication clock frequency = 1.5V EPSON 4–5 S1F70000 Series Technical Manual...
  • Page 151 = 5.0V, Backup switching leakage current — — = 3.0V RST Low-level output current = 0.9V, V = 0.2V 0.05 0.15 — PS pullup current = 1.5V — — Multiplication clock frequency = 1.5V EPSON 4–6 S1F70000 Series Technical Manual...
  • Page 152 = 1.5V, Switching transistor leakage current — — = 7.0V RST Low-level output current = 0.9V, V = 0.2V 0.05 0.15 — PS pullup current = 1.5V — — Multiplication clock frequency = 1.5V EPSON 4–7 S1F70000 Series Technical Manual...
  • Page 153 Ambient temperature (˚C) Detection voltage vs. ambient temperature S1F76380M1H0 and S1F76380M1L0 = 1.5 V Ta = 25 ˚C –30 Ambient temperature (˚C) Input voltage (V) Clock frequency vs. Input voltage Clock frequency vs. ambient temperature EPSON 4–8 S1F70000 Series Technical Manual...
  • Page 154 Clock frequency vs. input voltage Clock frequency vs. ambient temperature S1F76310M1A0 = 1.5 V Ta = 25 ˚C –30 Ambient temperature (˚C) Input voltage (V) Clock frequency vs. input voltage Clock frequency vs. ambient temperature EPSON 4–9 S1F70000 Series Technical Manual...
  • Page 155 Inductor: TDK NLF453232-221k (220 H) 1. V = 1.5V Diode: Shindengen DINS4 Schottky barrier diode 2. Inductor: TDK NLF453232 series Capacitor: NEC MSUB20J106M (10 F) Diode: Shindengen DINS4 Schottky barrier diode Capacitor: NEC MSUB20J106M (10 F) EPSON 4–10 S1F70000 Series Technical Manual...
  • Page 156 Inductor: TDK NLF453232-221k (220 H) 1. V = 1.5V Diode: Shindengen DINS4 Schottky barrier diode 2. Inductor: TDK NLF453232 series Capacitor: NEC MSUB20J106M (10 F) Diode: Shindengen DINS4 Schottky barrier diode Capacitor: NEC MSUB20J106M (10 F) EPSON 4–11 S1F70000 Series Technical Manual...
  • Page 157 R = 200 k R = 200 k R = 100 k R = 100 k C ( F) C ( F) S1F76380M1H0 R = 200 k R = 100 k C ( F) EPSON 4–12 S1F70000 Series Technical Manual...

  • Page 158: Package Markings

    To ensure 50% duty, this frequency is twice that used by the volt- age booster circuit. When PS is Low, the oscillator is disabled and the chip is in standby mode. EPSON 4–13 S1F70000 Series Technical Manual...
  • Page 159 V and GND. PWCR and RST are grounded. If V recovers and rises higher than V , Tr1 turns OFF. The detection volt- age hysteresis is 5% (Typ.) and V is V 1.05 (Typ.). EPSON 4–14 S1F70000 Series Technical Manual...

  • Page 160: Typical Applications

    Peff of a particular device in a series depends on and the size and type of other external components. S1F76310 series S1F76380 series S1F76380M/C S1F76310M/C PWCR CONT PWCR EPSON 4–15 S1F70000 Series Technical Manual...
  • Page 161 V Observing the following guidelines will ensure high Capacitor performance and maximum efficiency. To minimize ripple voltages, use a capacitor with a small equivalent direct-current resistance for smooth- ing. EPSON 4–16 S1F70000 Series Technical Manual...
  • Page 162 NLF453232-102K 1000.0 10% 0.252 16.00 Characteristic response Measurement circuit 1000 20,000 µF 820 H 390 H 150 H YHP4255A universal bridge supply 33 H 10 H 4.7 H 1.0 H 1000 DC current (mA) EPSON 4–17 S1F70000 Series Technical Manual...
  • Page 163 Rated current I Diameter height Wire gauge Device (mm-Max.) (mmø) = rating HP011 HP021 HP031 HP012 HP022 HP032 HP052 HP013 1000 HP023 HP033 HP055 HP034S HP054S HP104S HP024 1500 HP034 HP054 HP104 HP035 HP055 HP105 HP205 EPSON 4–18 S1F70000 Series Technical Manual...
  • Page 164 0.08 0.12 MSVCOJ336M 0.08 0.12 MSVD2OJ686M 0.08 0.12 MSVDOJ686M 0.08 0.12 Note The figures on the previous pages show data from the documents of various manufactures. For further details, please contact the relevant manufacture. EPSON 4–19 S1F70000 Series Technical Manual...
  • Page 165 PS on the S1F76310M1A0 and P on the S 1 F 7 6 6 1 0 C / M , P S o n l y s h u t s d o w n t h e EPSON 4–20 S1F70000 Series...
  • Page 166 10 A. The current, I Step-up through the internal resistors R1 and R2, is typically voltage 1 A. output S1F76310M Comparatpr Level Controller shifter Buffer < I Voltage adjustment circuit EPSON 4–21 S1F70000 Series Technical Manual...

  • Page 167: Description

    • SOP3-8pin LINEUP Voltage (V) Output Multiplication Crystal Voltage Power-on Battery Response voltage Product frequency Oscillator Package Input Output detection clear backup compensation temperature source Output characteristic Crystal S1F76330M1B0 SOP3-8pin 3.00 (0.9 Min.) oscillator EPSON 4–22 S1F70000 Series Technical Manual...

  • Page 168: Block Diagram

    PIN DESCRIPTIONS S1F76330 series Number Name Description Crystal drain Crystal gate Ground External inductor drive Output voltage Oscillator output Step-up input voltage Power save. See note. Note See standby mode in the functional description. EPSON 4–23 S1F70000 Series Technical Manual...

  • Page 169: Absolute Maximum Ratings

    High-level output current 0.55 1.1 — = 0.2V PS pull-up current = 1.5V — — = 10pF, C = 10pF, Oscillator start-up voltage — — = 300k , Oscillator shut-down voltage — — = 32kHz EPSON 4–24 S1F70000 Series Technical Manual...
  • Page 170 = 10 pF = 20 pF –5 Normalized frequency deviation = f/f –50 –10 Gate capacitance (pF) Input voltage (V) Normalized frequency deviation vs. Normalized frequency deviation vs. gate input voltage 1 capacitance 2 EPSON 4–25 S1F70000 Series Technical Manual...

  • Page 171: Package Markings

    Diode: Shindengen DINS4 Schottky barrier diode Capacitor: NEC MSVB20J106M (10 F) PACKAGE MARKINGS S1F76330 device packages use the following marking. 7 6 3 1 Series number First subcode character Second subcode character Code number EPSON 4–26 S1F70000 Series Technical Manual...

  • Page 172: Functional Descriptions

    , allowing the ripple CONT The reference voltage generator regulates V to gener- voltage generated by the boosted output voltage to be ate a voltage for the voltage regulator circuit. suppressed to a minimum. EPSON 4–27 S1F70000 Series Technical Manual...

  • Page 173: Typical Applications

    Toroidal coil Observing the following guidelines will ensure high performance and maximum efficiency. Use a toroidal coil to virtually eliminate magnetic field leakage, reduce losses and improve performance. EPSON 4–28 S1F70000 Series Technical Manual...
  • Page 174 NLF453232-102K 1000.0 10% 0.252 16.00 Characteristic response Measurement circuit 20,000 F 1000 820 H 390 H YHP4255A 150 H universal bridge supply 33 H 10 H 4.7 H 1.0 H 1000 DC current (mA) EPSON 4–29 S1F70000 Series Technical Manual...
  • Page 175 Rated current Diameter height Wire gauge Device (mm-Max.) (mmø) = rating HP011 HP021 HP031 HP012 HP022 HP032 HP052 HP013 1000 HP023 HP033 HP055 HP034S HP054S HP104S HP024 1500 HP034 HP054 HP104 HP035 HP055 HP105 HP205 EPSON 4–30 S1F70000 Series Technical Manual...
  • Page 176 0.08 0.12 MSVC0J336M 0.08 0.12 MSVD20J686M 0.08 0.12 MSVD0J686M 0.08 0.12 Note The figures on the previous pages show data from the documents of various manufacturers. For further details, please contact the relevant manufacturer. EPSON 4–31 S1F70000 Series Technical Manual...
  • Page 177 S1F76610C/M through L and D. (5 V) (5 V) = 1.5 V (1.5 V) GND (0 V) (0 V) GND = 0 V Boost Boost = 5V (–10 V) GND = 0 V Boost Boost EPSON 4–32 S1F70000 Series Technical Manual...
  • Page 178 10 A. The current, I Step-up voltage through the internal resistors R1 and R2 is typically output 1 A. SCI7631M/C Comparator Level Controller < I shifter Buffer Voltage adjustment circuit EPSON 4–33 S1F70000 Series Technical Manual...

  • Page 179: Description

    BLOCK DIAGRAM Low-voltage Overcurrent protection circuit protection circuit POFFX – – Reference voltage circuit SENSE Soft start Oscillator SSCAP Driver PWM circuit ERCAP – Error amplifier EPSON 4–34 S1F70000 Series Technical Manual...

  • Page 180: Pin Assignments

    (Connect a resistor of 100m ) Output Switching Pch power MOS transistor drive pin ERCAP – Capacitor connection pin for external phase compensation Input Output voltage feedback pin Power Power supply pin (–) supply EPSON 4–35 S1F70000 Series Technical Manual...

  • Page 181: Functional Descriptions

    The soft start time can be set ac- tection of overcurrent. cording to the capacitance value of a capacitor to be EPSON 4–36 S1F70000 Series Technical Manual...

  • Page 182: Absolute Maximum Ratings

    Note :Any operation under conditions exceeding the above absolute maximum ratings may result in a malfunc- tion or a permanent destruction. When even an item is more than the rating, a temporary normal operation is possible but with remarkably low reliability. So, be sure to keep all items below the ratings. EPSON 4–37 S1F70000 Series...

  • Page 183: Electrical Characteristics

    Object pin : V — 0.15 — hysteresis Output voltage =5.0V — 0.02 — %/˚C temperature coefficient Ta=–30 to +85˚C * Characteristics vary with applicable conditions and parts. Select proper parts after sufficient evaluation. EPSON 4–38 S1F70000 Series Technical Manual...

  • Page 184: Example Of External Connection Of Reference Circuit

    SSCAP 0.1 F ERCAP 330pF 100m PchTr (Hitachi 2SJ484) 47 H (Sumida CD105) 47 F (Sanyo 16SA47M) Schottkey (Rohm RB161L-40) * Characteristics vary with applicable conditions and parts. Select proper parts after sufficient evaluation. EPSON 4–39 S1F70000 Series Technical Manual...

  • Page 185: Mechanical Data

    Max. (0.189) (0.197) (0.204) 1.75 (0.069) 0.15 (0.006) (0.063) 1.27 (0.05) 0.25 0.35 0.45 (0.010) (0.014) (0.017) 0.05 0.15 0.25 (0.002) (0.006) (0.009) 0.55 (0.022) (0.252) (0.268) (0.283) (0.189) (0.197) (0.204) * for reference EPSON 4–40 S1F70000 Series Technical Manual...

  • Page 186: Description

    S1F71200 can stop the oscillator and the * Radiation-resistant design has not been provided for switching circuit and turn off the power, so that it can this specification. reduce wasteful current consumption at the time of sys- tem halt. EPSON 4–41 S1F70000 Series Technical Manual...

  • Page 187: Block Diagram

    S1F71200 Series BLOCK DIAGRAM Driver Oscillator Overcurrent detection circuit SENSE Soft start Series regulator Error amplifier Reference voltage POFFX circuit EPSON 4–42 S1F70000 Series Technical Manual...

  • Page 188: Pin Assignments

    S1F71200 Series PIN ASSIGNMENTS Index SSOP2–16pin EPSON 4–43 S1F70000 Series Technical Manual...

  • Page 189: Pin Descriptions

    — — Step-up output feedback pin — — Power pin (–), Ground pin — Capacitor connection pin for soft start Input Overcurrent detection pin SENSE Output Step-up switching power transistor drive pin EPSON 4–44 S1F70000 Series Technical Manual...

  • Page 190: Functional Descriptions

    V pin through the coil and the di- ode. (The voltage at the V pin comes to the one ob- tained by reducing V of the diode from the input volt- age.) EPSON 4–45 S1F70000 Series Technical Manual...
  • Page 191 This series regulator operates monitoring voltage at the pin of step-up/step-down output. It controls the drive current (base current of the PNP transistor) at the EXO pin to stabilize voltage at the V pin. EPSON 4–46 S1F70000 Series Technical Manual...

  • Page 192: Absolute Maximum Ratings

    Any operation under conditions exceeding the above absolute maximum ratings may result in a malfunction or a permanent destruction. When even an item is more than the rating, a temporary normal operation is possible but with remarkably low reliability. So, be sure to keep all items below the ratings. EPSON 4–47 S1F70000 Series...

  • Page 193: Electrical Characteristics

    = 50mV Input stability = 3V to 12V — — Load stability = 10mA to 100mA — — Input voltage level — 0.8V — — at POFFX pin, — — — 0.2V at V EPSON 4–48 S1F70000 Series Technical Manual...
  • Page 194 * These values are available when external parts are used in the example of circuit connection shown on the at- tached sheet. The characteristics vary with applicable parts. Select proper parts after sufficient evaluation. EPSON 4–49 S1F70000 Series Technical Manual...
  • Page 195 = 50mV Input stability = 3V to 12V — — Load stability = 10mA to 100mA — — Input voltage level — 0.8V — — at POFFX pin, — — — 0.2V at V EPSON 4–50 S1F70000 Series Technical Manual...
  • Page 196 * These values are available when external parts are used in the example of circuit connection shown on the at- tached sheet. The characteristics vary with applicable parts. Select proper par ts after sufficient evaluation. EPSON 4–51 S1F70000 Series Technical Manual...

  • Page 197: Example Of External Connection Of Reference Circuit

    S1F71200 Series EXAMPLE OF EXTERNAL CONNECTION OF REFERENCE CIRCUIT Basic Circuit Driver Oscillator Overcurrent detection circuit SENSE Soft start Series regulator Error amplifier Reference voltage POFFX circuit EPSON 4–52 S1F70000 Series Technical Manual...
  • Page 198 Schottky (Rohm RB161L-40) 47 F (Sanyo 16SA47M) PNPTr (2SA1242) 22 F (Sanyo 10SL22M) 100k 0.1 F CSSC 0.1 F SENSE * Characteristics vary with applicable conditions and parts. Select proper parts after sufficient evaluation. EPSON 4–53 S1F70000 Series Technical Manual...

  • Page 199: Mechanical Data

    (0.066) 0.05 (0.002) (0.056) (0.059) (0.062) (0.031) 0.26 0.36 0.46 (0.011) (0.014) (0.018) 0.15 0.25 (0.004) (0.006) (0.009) (0 ) (10 ) (0.012) (0.020) (0.027) (0.035) (0.016) (0.233) (0.244) (0.255) (0.275) * for reference EPSON 4–54 S1F70000 Series Technical Manual...
  • Page 200 5. Voltage Detector...

  • Page 201: Description

    77220Y series employ the CMOS output and P-channel output, respectively. The package used is the SOT89-3 pin plastic package. Our voltage detectors are used for determining battery life, and also for monitoring supply voltage fed to mi- crocomputers and LSI systems. EPSON 5–1 S1F70000 Series Technical Manual...

  • Page 202: Lineup

    Hi–Z S1F77200Y1A0 1.00 1.05 1.10 N ch Open Drain Low level Hi–Z S1F77200Y1V0 0.90 0.95 1.00 N ch Open Drain Low level Hi–Z S1F77220Y2D0 1.20 1.25 1.30 P ch Open Drain High level Hi–Z EPSON 5–2 S1F70000 Series Technical Manual...

  • Page 203: Block Diagram

    S1F77220Y1 0 Type S1F77220Y2 0 Type (2pin) (2pin) (1pin) — (1pin) — (3pin) (3pin) Note: A different code can be employed for the ones preceded by * marking depending on their detecting voltage specification. EPSON 5–3 S1F70000 Series Technical Manual...

  • Page 204: Pin Descriptions

    Vref minute, hysteresis is added so that the Relief voltage: • V comparator may not fail due to noise on the power sup- ply and such. In the example shown in the figure below, (2pin) — (1pin) (3pin) EPSON 5–4 S1F70000 Series Technical Manual...

  • Page 205: Absolute Maximum Ratings

    Operating temperature Topr –40 to +85 –30 to +85 (designed for lower voltage operation) Storage temperature Tstg –65 to +150 ˚C Soldering temperature 260 · 10 Tsol ˚C · s and time (at leads) EPSON 5–5 S1F70000 Series Technical Manual...

  • Page 206: Electric Characteristics

    Low level output current 0.20 1.00 — OUT = 0.2V = 3V 2V — Ta = 25 C Detection voltage response time = 3V 2V — — Ta = –30 C to +85 C EPSON 5–6 S1F70000 Series Technical Manual...
  • Page 207 Low level output current 0.20 1.00 — OUT = 0.2V = 3V 2V — Ta = 25 C Detection voltage response time = 3V 2V — — Ta = –30 C to +85 C EPSON 5–7 S1F70000 Series Technical Manual...
  • Page 208 Low level output current 0.20 1.00 — OUT = 0.2V = 3V 2V — Ta = 25 C Detection voltage response time = 3V 2V — — Ta = –30 C to +85 C EPSON 5–8 S1F70000 Series Technical Manual...
  • Page 209 Low level output current 0.20 1.00 — OUT = 0.2V = 4V 3V — Ta = 25 C Detection voltage response time = 4V 3V — — Ta = –30 C to +85 C EPSON 5–9 S1F70000 Series Technical Manual...
  • Page 210 Low level output current 0.20 1.00 — OUT = 0.2V = 5V 4V — Ta = 25 C Detection voltage response time = 5V 4V — — Ta = –30 C to +85 C EPSON 5–10 S1F70000 Series Technical Manual...
  • Page 211 Low level output current 0.20 1.00 — OUT = 0.2V = 5V 4V — Ta = 25 C Detection voltage response time = 5V 4V — — Ta = –30 C to +85 C EPSON 5–11 S1F70000 Series Technical Manual...
  • Page 212 Low level output current 0.20 1.00 — OUT = 0.2V = 5V 4V — Ta = 25 C Detection voltage response time = 5V 4V — — Ta = –30 C to +85 C EPSON 5–12 S1F70000 Series Technical Manual...
  • Page 213 Low level output current 0.50 2.00 — OUT = 0.3V = 3V 2V — Ta = 25 C Detection voltage response time = 3V 2V — — Ta = –30 C to +85 C EPSON 5–13 S1F70000 Series Technical Manual...
  • Page 214 Low level output current 0.20 1.00 — OUT = 0.2V = 5V 4V — Ta = 25 C Detection voltage response time = 5V 4V — — Ta = –30 C to +85 C EPSON 5–14 S1F70000 Series Technical Manual...
  • Page 215 Low level output current 0.15 0.75 — OUT = 0.15V = 3V 2V — Ta = 25 C Detection voltage response time = 3V 2V — — Ta = –30 C to +85 C EPSON 5–15 S1F70000 Series Technical Manual...
  • Page 216 Low level output current 0.05 0.40 — OUT = 0.16V = 1.5V 0.8V — Ta = 25 C Detection voltage response time = 1.5V 0.8V — — Ta = –30 C to +85 C EPSON 5–16 S1F70000 Series Technical Manual...
  • Page 217 Low level output current 0.05 0.40 — OUT = 0.16V = 1.5V 0.8V — Ta = 25 C Detection voltage response time = 1.5V 0.8V — — Ta = –30 C to +85 C EPSON 5–17 S1F70000 Series Technical Manual...
  • Page 218 Low level output current — –0.03 –0.06 OUT = 0.64V = 1.5V 0.8V — Ta = 25 C Detection voltage response time = 1.5V 0.8V — — Ta = –30 C to +85 C EPSON 5–18 S1F70000 Series Technical Manual...

  • Page 219: Examples Of External Connection

    Input voltage (+) (2pin) S1F77210Y Voltage detection output Series (1pin) (3pin) Input voltage (—) Input voltage (+) (2pin) (1pin) S1F77210Y Voltage detection output Series (3pin) Input voltage (—) Power supply for pull down resistor EPSON 5–19 S1F70000 Series Technical Manual...

  • Page 220: Sample Circuits (S1F77210Y Series)

    The following is an example of the supply voltage switching circuit for the battery backup supply configured featur- ing the S1F77210Y series. PNP transistor NPN transistor S1F77210Y Enable signal Figure 5-15 Battery backup circuit EPSON 5–20 S1F70000 Series Technical Manual...

  • Page 221: Sample Circuits (S1F77200Y Series)

    Battery backup circuit The following is an example of the supply voltage switching circuit for the battery backup configured featuring the S1F77200Y series. PNP transistor NPN transistor S1F77200Y Enable signal Figure 5-17 Battery backup circuit EPSON 5–21 S1F70000 Series Technical Manual...

  • Page 222: Precautions

    In order to reject this trouble, the following measures should be considered: (1) Reduce the resistance value. (2) Insert a capacitor. (3) Replace with the S1F77200Y series (it employs N-channel open drain approach). 77210Y EPSON 5–22 S1F70000 Series Technical Manual...

  • Page 223: Appendix

    6. Appendix...

  • Page 224: Absolute Maximum Ratings

    These conditions are sometimes listed as part of the electrical characteristics. ELECTRICAL CHARACTERISTICS Electrical characteristics specify the DC and AC characteristics of a device under the worst measure- ment conditions. EPSON 6–1 S1F70000 Series Technical Manual...

  • Page 225: Parameter Summary

    Minimum pulsewidth Maximum current Address hold time Output current Data hold time High-level output current Total harmonic distortion Low-level output current Thermal resistance Multiplier circuit power dissipation Memory reset recovery time OPR1 EPSON 6–2 S1F70000 Series Technical Manual...
  • Page 226 OPMIN Data setup time Reference voltage Soldering temperature and time Output voltage (regulated) Storage temperature Power supply voltage Power supply voltage Power supply voltage Detection voltage Oscillator start-up voltage Forward voltage Oscillator shut-down voltage EPSON 6–3 S1F70000 Series Technical Manual...

  • Page 227: Mechanical Data

    0.125 0.05 0.15 0.05 0.5 0.2 Unit: mm Unit: mm Plastic SOP3–8pin Plastic SOP4–8pin 5.0 0.2 5.0 0.2 INDEX INDEX 0.15 0.1 0.55 1.27 0.35 0.1 0.2 0.1 1.27 0.4 0.1 Unit: mm Unit: mm EPSON 6–4 S1F70000 Series Technical Manual...
  • Page 228 1.27 0.4 0.1 Unit: mm Unit: mm Plastic SSOP2–16pin Plastic SSOP1–20pin 6.8 0.2 6.5 0.1 6.6 0.2 INDEX INDEX 0.15 0.15 0.5 0.2 0.5 0.2 0.65 0.22 0.1 0.36 0.1 Unit: mm Unit: mm EPSON 6–5 S1F70000 Series Technical Manual...

  • Page 229: Emboss Carrier Taping Standard (Sot89-3Pin)

    There are no joints in either the cover or carrier tapes. blanks. This does not apply to the tape leader and Less than 0.2% of the total device count is comprised trailer. of non-sequential blanks. There are no sequential EPSON 6–6 S1F70000 Series Technical Manual...

  • Page 230: Reel Specifications

    2.0 0.5 14.0 (See note.) 1.5 0.1 17 (See note.) Note W and W2 are measured at the reel core. DEVICE POSITIONING Small molded power IC devices are positioned as shown in the following figure. EPSON 6–7 S1F70000 Series Technical Manual...

  • Page 231: Taping Information

    There are no joints in either the cover or carrier tapes. blanks. This does not apply to the tape leader and Less than 0.2% of the total device count is comprised trailer. of non-sequential blanks. There are no sequential EPSON 6–8 S1F70000 Series Technical Manual...

  • Page 232: Device Positioning

    W and W2 are measured at the reel core. DEVICE POSITIONING Type B products are positioned so that the index mark is on the sprocket hole side of the tape, as shown in the following figure. Travel direction Index mark EPSON 6–9 S1F70000 Series Technical Manual...
  • Page 233 Appendix Type F product are positioned so that the index mark is on the opposite side to the sprocket holes, as shown in the following figure. Travel direction Index mark EPSON 6–10 S1F70000 Series Technical Manual...

  • Page 234: Taping Information

    There are no joints in either the cover or carrier tapes. blanks. This does not apply to the tape leader and Less than 0.1% of the total device count is comprised trailer. of non-sequential blanks. There are no sequential EPSON 6–11 S1F70000 Series Technical Manual...

  • Page 235: Reel Specifications

    W and W2 are measured at the reel core. DEVICE POSITIONING Type B products are positioned so that the index mark is on the sprocket hole side of the tape, as shown in the following figure. Index mark Travel direction EPSON 6–12 S1F70000 Series Technical Manual...
  • Page 236 Appendix Type F products are positioned so that the index mark is on the opposite side to the sprocket holes, as shown in the following figure. Index mark Travel direction EPSON 6–13 S1F70000 Series Technical Manual...

  • Page 237: Taping Information

    Less than 0.2% of the total device count is comprised (1 kgf). A label indicates the part name, quantity and of non-sequential blanks. There are no sequential lot number. blanks. This does not apply to the tape leader and EPSON 6–14 S1F70000 Series Technical Manual...
  • Page 238 1,000 SOP2 packages fitted into the com- ponent mounting section between them. At the begin- Finish Start Cover tape Trailer (open) > 40mm Base Lead (open) > 40mm only Travel direction Embossed carrier EPSON 6–15 S1F70000 Series Technical Manual...

  • Page 239: Reel Specifications

    W and W2 are measured at the reel core. DEVICE POSITIONING Type B products are positioned so that the index mark is on the sprocket hole side of the tape, as shown in the following figure. Index mark Travel direction EPSON 6–16 S1F70000 Series Technical Manual...
  • Page 240 Appendix Type F products are positioned so that the index mark is on the opposite side to the sprocket holes, as shown in the following figure. Index mark Travel direction EPSON 6–17 S1F70000 Series Technical Manual...
  • Page 241 Telex : 65542 EPSCO HX Phone : +1-815-455-7630 Fax : +1-815-455-7633 Northeast 301 Edgewater Place, Suite 120 EPSON TAIWAN TECHNOLOGY & TRADING LTD. Wakefield, MA 01880, U.S.A. 10F, No. 287,Nanking East Road, Sec. 3 Phone : +1-781-246-3600 Fax : +1-781-246-5443...
  • Page 242 In pursuit of “Saving” Technology, Epson electronic devices. Our lineup of semiconductors, liquid crystal displays and quartz devices assists in creating the products of our customers’ dreams. Epson IS energy savings.
  • Page 243 S1F70000 Series Technical Manual ELECTRONIC DEVICES MARKETING DIVISION EPSON Electronic Devices Website http://www.epson.co.jp/device/ First issue November,1990 U This manual was made with recycle paper, and printed using soy-based inks. Revised July,2002 in Japan H B...

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