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Epson S1F76610 series Technical Manual

Cmos dc/dc converter (voltage doubler / tripler) & voltage regulator.
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MF302 - 12
IEEE1394 Controller
POWER SUPPLY IC
S1F76610 Technical Manual

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   Summary of Contents for Epson S1F76610 series

  • Page 1 MF302 - 12 IEEE1394 Controller POWER SUPPLY IC S1F76610 Technical Manual...
  • Page 2: Block Diagram

    Doubler / Tripler) & Voltage Regulator DESCRIPTION • External shut-down control The S1F76610 Series is a highly effecient CMOS DC/ • 2µA maximum output current when shut-down DC converter for doubling or tripling an input voltage. • Two-in-series configuration doubles negative output It incorporates an on-chip voltage regulator to ensure voltage.
  • Page 3 S1F76610 Series PIN ASSIGNMENTS CAP+ CAP+ CAP– OSC1 CAP– OSC1 CAP2+ OSC2 CAP2+ OSC2 CAP2– CAP2– S1F76610C0B0/M0B0 S1F76610M2B0 PIN DESCRIPTIONS S1F76610C0B0/M0B0 Pin name Pin No. Description Positive charge-pump connection for ×2 multiplier CAP1+ Negative charge-pump connection for ×2 multiplier CAP1–...
  • Page 4: Specifications

    S1F76610 Series SPECIFICATIONS Absolute Maximum Ratings Parameter Ratings Codes Units Remarks N = 2: Boosting to a double voltage –20/N to V + 0.3 Input supply voltage – V N = 3: Boosting to a triple voltage – 0.3 to V + 0.3...
  • Page 5: Electrical Characteristics

    S1F76610 Series 10µF 1MΩ 10µF 22µF 3. R is a function of V Lmin STA2 STA1 Voltage tripler Voltage doubler Input voltage (V) Electrical Characteristics = 0V, V = –5V, Ta = –40 to +85°C unless otherwise noted Rating Parameter...
  • Page 6 S1F76610 Series Rating Symbol Conditions Parameter Unit Min. Typ. Max. Ω = 10mA Output impedance — Peff = 5mA Multiplication efficiency 90.0 95.0 — = –18 to –8V, ∆V Stabilization output voltage = ∞, — — = –8V, R ∆V ·V...
  • Page 7 S1F76610 Series Typical Performance Characteristics 1000 Ta = 25°C = –5V = –3V = –5.0V = –2V = –3.0V = –2.0V –40 –20 1000 10000 Ta [°C] [kΩ] (1) Clock frequency vs. External resistance (2) Clock frequency vs. Ambient temperature Ta = 25°C...
  • Page 8 S1F76610 Series Ta = 25°C Ta = 25°C –1 = –3.0V = –2.0V ×2 multiplier –2 –5 –3 ×2 multiplier ×3 multiplier –10 –4 ×3 multiplier –5 –15 –6 9 10 [mA] [mA] (5) Output voltage vs. Output current (6) Output voltage vs. Output current Ta = 25°C...
  • Page 9 S1F76610 Series Ta = 25°C ×2 multiplier = 6mA Peff Ta = 25°C ×3 multiplier = –2.0V Peff ×3 multiplier ×3 multiplier ×2 multiplier ×2 multiplier –7 –6 –5 –4 –3 –2 –1 [mA] (9) Multiplication efficiency/input current (10) Output impedance vs. Input voltage vs.
  • Page 10 S1F76610 Series –7.850 = 0.5mA = 1.0mA = –15V = 2.0mA Ta = 25°C = 4.0mA –7.900 –7.950 Ta = 25°C = – 3.0V –8.000 0.0001 0.0010 0.0100 0.1000 1000 [kHz] (13) Multiplication efficiency vs. Clock frequency (14) Output voltage vs. Output current –2.850...
  • Page 11 S1F76610 Series 0.30 Ta = 25°C 0.25 = –5V 0.20 = –10V = –15V 0.15 0.10 0.05 0.00 –50 –40 –20 [mA] Ta [°C] (17) Regulator voltage vs. Output current (18) Regulator output stability ratio vs. Ambient temperature Temperature Gradient Control...
  • Page 12 S1F76610 Series FUNCTIONAL DESCRIPTIONS Voltage Multiplier CR Oscillator The on-chip CR oscillator network frequency is deter- The voltage multiplier uses the clock signal from the mined by the external resistor, R , connected be- oscillator to double or triple the input voltage. This re- tween OSC1 and OSC2.
  • Page 13: Typical Applications

    S1F76610 Series TYPICAL APPLICATIONS Voltage Tripler with Regulator Converting a Voltage Tripler to a Voltage The following figure shows the circuit required to triple Doubler the input voltage, regulate the result and add a tempera- To convert this curcuit to a voltage doubler, remove ca- ture gradient of –0.4%/°C.
  • Page 14 S1F76610 Series Serial Connection Connecting two or more chips in series obtains a higher connection, however, this also raises the output imped- output voltage than can be obtained using a parallel ance. <Precautions when connecting loads> In case of series connections, when connecting loads...
  • Page 15 S1F76610 Series Simultaneous Voltage Conversion Using an External Gradient Combining a standard voltage tripler circuit with one The S1F7661C0B0/M0B0 offers three built-in tem- for positive voltage conversion generates both –15 and perature gradients— –0.1, –0.4 and –0.6%/°C. 8.2V outputs from a single input, however, it also raises...

This manual also for:

S1f76610m0b0S1f76610c0b0S1f76610m2b0

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