Toshiba TB62217AFG Manual

A bicd process integrated circuit silicon monolithic

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查询TB62217AFG供应商

PWM drive Stepping Motor Driver / Brush DC Motor Driver Selectable, DC-DC Converter

and Reset function IC

The TB62217FG is a dual stepping motor driver driven by PWM

chopper micro step, with 3- channel step-down DC-DC converters and

an external-IC reset function.

To drive a two-phase bipolar-type stepping motor, a 16-bit latch and

a 16-bit shift register are built into the IC. The IC is suitable for

driving stepping motors with low-torque ripple in a highly efficient

manner. In addition, a signal axis can be switched to serve as a PWM

driver for two DC motors.

By equipping the stepping motor driver with Selectable Mixed

Decay Mode for switching the attenuation ratio during chopping, and

also equipping it with a DC-DC converter, it is possible for the IC to

supply external voltage.

With a built-in timer that starts running when the IC is supplied

with power, the IC can be used in resetting (initializing) external

devices.

Features

•

The following motor combinations can be used.

Stepper

(1)

Dual motors

(2)

Single motor

(3)

Single motor

⎯

(4)

⎯

(5)

⎯

(6)

Note Hereafter, DC Large will be referred to as DC (L) and DC Small will be referred to as DC (S).

Stepping Motor

DC Motor Mode

Pulse spike Peak

Recommended maximum

current

Stationary current

The large current standard is achieved by shorting a small current H-Bridge across two ICs. In addition, if the

thermal setting is designed to be within the prescribed thermal range, the initial torque current can be used as the

normal operating current.

TOSHIBA BiCD Process Integrated Circuit Silicon Monolithic

TB62217AFG

DC Large DC (L)

DC Small DC (S)

⎯

Single motor

⎯

Single motor

Dual motors

⎯

Quadruple motors

1.0A(MAX)

DC Large

8.0A(500ns)

3.0A(100ms)

0.8A

⎯

Dual motors

⎯

(Single Motor)

DC Small

8.0A（500ns)

2.5A (100ms)

0.8A

TB62217AFG

Weight: 0.45 g (typ.)

2004-11-12

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Summary of Contents for Toshiba TB62217AFG

Page 1 查询TB62217AFG供应商 TB62217AFG TOSHIBA BiCD Process Integrated Circuit Silicon Monolithic TB62217AFG PWM drive Stepping Motor Driver / Brush DC Motor Driver Selectable, DC-DC Converter and Reset function IC The TB62217FG is a dual stepping motor driver driven by PWM chopper micro step, with 3- channel step-down DC-DC converters and an external-IC reset function.
Page 2 TB62217AFG • It is possible to supply external voltage by incorporating three step-down 1.5 V to 5.0 V variable DC-DC converters. • A Reset function has been added making it possible to deliver an external reset signal. • The DMOS motor driver output of this monolithic BiCD IC is capable of achieving a low ON resistance of Ron = 0.6 Ω...
Page 3 TB62217AFG Pin Layout (4-channel DC Motor Mode , example) ENABLE SD TEST ENABLE SC Th OUT Logic OUT 29 VREF CD ENABLE SB VREF AB Driver Driver ENABLE SA VDIN２ LGND VDIN１ LGND Driver Driver OSC＿Ｄ OSC＿M PHASE SA PHASE SC ODＢ PHASE SD PHASE SB T-HQFP64-1010-P-0.50 Combinations enclosed in the blue dashed lines are used when in DC (L) mode (A- and B-axis drivers in a pair, and C- and D-axis drivers in a pair).
Page 4 TB62217AFG Cautions on connection to the IC pins Note1 Connect all NC pins (pins left unused) to the lowest potential level (usually to GND). Note2 Connect any unused Vref pins (28pin,29pin) to GND. Note3 Unused DATA, CLOCK, and STROBE input pins are pulled down internally, so connect them to GND.
Page 5 TB62217AFG Pin Descriptions (initial setup mode) SLEEP = Low supports a write mode for the initial setup or extended setup mode data. (1) Pin description (SETUP mode, that is, initial setup or extended setup mode) (2) Pin description (dual axis stepping motor mode)
Page 6 TB62217AFG (1) (2) (3) (4) (5) (6) (7) SETUP STEP STEP STEP+ DC (L)+ Dual DC (L) 4ch DC (S) Remark MODE (Dual) + DC (L) Dual DC (S) Dual ( DC (S) Connect to GND TEST TEST TEST TEST TEST TEST TEST DGND1 DGND1 DGND1 DGND1 DGND1...
Page 7 TB62217AFG ( Note: H-bridge combination (connection method) for each type of motor driver A-phase B-phase Load Load PGND PGND Stepping Motor single motor Mutually Load connected outside the IC PGND PGND DC (L) Single motor … The white circle indicates an IC pin. ...
Page 8 TB62217AFG Note Load PGND DC (S) Single motor … The white circle indicates an IC pin. 2004-11-12...
Page 9: Overall Block Diagram
TB62217AFG 1. Overall Block Diagram OSCD FBA FBB ODA ODB CSELECT DC/DC DC/DC DC/DC converter selector VM-VDD converter DC/DC cnv A DC/DC DC/DC cnv B regulator converter DC/DC cnv C POR unit VSD unit (CC) Extended setup unit...
Page 10 TB62217AFG 2-1. Input Equivalent Circuits (1) Logic Input Pin 64: PHASE SB 63: PHASE SD 62: PHASE SC 61: PHASE SA 54: ENABLE SA 150 Ω To the internal logic 53: ENABLE SB 50: ENABLE SC 49: ENABLE SD...
Page 11 TB62217AFG 2-2. Stepping Motor Logic Unit (with the same functions for both an A-/B-axis pair and a C-/D-axis pair) Function This circuit receives step current setting data entered from the DATA pin and transfers it to the subsequent stage. It is enabled when the SLEEP pin is high. (If the SLEEP pin is low, the IC enters the initial setup or extended setup mode.)
Page 12 TB62217AFG 2-3. Initial Setup Logic Unit (available only for the A- / B-axis pair) Function This circuit is used to set up driver functions (initial setup) according to signals entered from the DATA pin. The functions that can be set up include motor re-configuration, digital tBLANK, DC-DC converter ON/OFF setting, and DC motor mode Vref (gain) setting.
Page 13 TB62217AFG 2-4. Extended Setup Logic Unit (available only for the A- and B-axis pair) Function This circuit sets up the monitor functions of the driver IC internal circuits according to a signal entered from the DATA pin. Extended setup logic 16-bit shift register ...
Page 14 TB62217AFG Current Feedback Circuit and Current Setting Circuit for Motor Driver Function The current setting circuit is used to set the reference voltage of the output current using the step current setting data entered from the serial input pin. The current feedback circuit is used to deliver a signal to the output control circuit when the output current reaches the set current.
Page 15 TB62217AFG Output Control Circuit, Current Feedback Circuit, and Current Setting Circuit for Motor Driver Chopping reference Step current setting data logic circuit generator circuit Decay Mixed Output control Phase mode decay circuit timing circuit Current feedback set current circuit reached signal...
Page 16 TB62217AFG Output Equivalent Circuit for Motor Driver To V RS A Output driver circuit From OUT A output control circuit Phase A RS B Output driver circuit OUT B From output OUT B control circuit Phase B MGND The motor output H switch block consists of the upper P-channel DEMOS FET and lower N-channel DEMOS FET.
Page 17: Dc-Dc Converter Circuit
TB62217AFG DC-DC Converter Circuit When an open detection circuit is available, Osc_D pin is set to open, the IC shuts down. If the pin is shorted to GND at startup, the IC fails to start operating. (It does not detect in a default.) In the DC-DC converter operating mode, channel B starts operating before channel A or C.
Page 18 TB62217AFG Reset Circuit (ORT) This circuit has an open-drain output. If the output is DC/DC conv pulled up with a resistor to the supply voltage, its 3.3 V level becomes low (internally on) at reset and high (internally Hi-Z) during normal operation (at a non-reset).
Page 19 TB62217AFG 16-Bit Serial Input Signals Three different pieces of data can be entered and set up by combining the CLK, DATA, STROBE and SLEEP pin inputs. (1) Extended setup mode (for setting up protection circuits) (2) Initial setup mode (for setting up motor drive modes) (3) Stepping motor drive mode (normal drive mode) ...
Page 20 TB62217AFG Extended Setup Mode Function (write enabled only when SLEEP = L and Setup Select = H) • In the extended setup mode, the protection circuits are set up and a monitor setup (output of a Lo_out pin) of a shutdown signal etc. is performed.
Page 21 TB62217AFG [Shut-down signal output (SD select)] These 4 bits are used to select what shut-down signal to generate. Alternatively, they are used to indicate vendor or version code. The shut-down select signals are released when the SLEEP signal changes form low to high.
Page 22 The revision and vendor codes are specific to an individual version of product. For example: Revision (0, 1, 2) = (L, L, L) and Vendor = (H) for Toshiba #1.0 Revision (0, 1, 2) = (H, L, L) and Vendor = (H) for Toshiba #1.1 Revision (0, 1, 2) = (L, H, L) and Vendor = (H) for Toshiba #1.2...
Page 23 TB62217AFG [OSC_M/OSC_D open-state detection circuit] The OSC_M/OSC_D open-state detection circuit tries to detect when a capacitor comes off the OSC_M or OSC_D for some reason by monitoring to see if the frequency gets out of the rated frequency range. When it detects such an event, it shuts down the IC.
Page 24 TB62217AFG Initial Setup Mode Select (write enabled only when SLEEP = L and Setup Select = L) Default Data Bit Name Function Setting Value Motor Select0 D2 D1 D0 0: Stepper × 2 Motor Select1 Motor pairing setting 1: Stepper × 1 + DCL × 1 (See the corresponding pin 0: Stepper ×...
Page 25 TB62217AFG tBLANK (noise rejection dead band time) The TB62217FG incorporates two different dead band times (blanking times) for different motors to be driven so as to prevent malfunction because of switching noise. (1) Analog tBLANK (for stepping motor mode) The noise rejection dead band time (analog tBLANK), defined by the motor's AC characteristics, is fixed within the IC.
Page 26 TB62217AFG Digital tBLANK Timing in DC Motor Drive Mode Digital Digital Digital tBLANK Digital tBLANK tBLANK tBLANK Phase Digital tBLANK Iout Charge Iout = 0 Charge start timing in constant-current control Phase switching point Phase switching point The digital tBLANK time begins immediately after the external PHASE signal is switched or at the charge start timing of the constant-current chopper.
Page 27 TB62217AFG (3) Data for Normal Stepping Motor Operation The TB62217FG signals for normal stepping motor operation can be entered in much the same manner as the drive data of the Toshiba TB62202AF. Data Bit Name Function Setting Torque A0/B0 A1/B1...
Page 28 TB62217AFG Setting Table (1) D0 and D1 Torque setting The peak torque current can be switched using 2-bit data. (Switching is the same for both the A-B and C-D pairs.) Setting Data Bit Name Function Torque 1 Torque 0 Torque (typ.)
Page 29 TB62217AFG Setting Table (4) D11, D12, D13, and D14 Current A setting Set angle value Data Bit Step Current A3 Current A2 Current A1 Current A0 Current (%) (degrees) Setting Table (5) D8 and D15 Phase A setting (this table applies also to phase B.) ...
Page 30 TB62217AFG Functions of External Input Pins (1) PHASE Input Pin (PHASE X) This pin indicates the polarity of the H switch used in driving a DC motor. PWM can be applied by performing time control (duty control) on this pin.
Page 31 TB62217AFG Protection Operations (1) When the RESET output mask is “1” in the extended setup mode Detected Error and Detection Block Operation State Reset Output Reset Method DC/DC A DC/DC B DC/DC C Motor Entire IC DC/DC DC/DC DC/DC Motor...
Page 32 TB62217AFG (2) When the RESET output mask is “0” in the extended setup mode Detected Error and Detection Block Operation State Reset Output Reset Method DC/DC A DC/DC B DC/DC C Motor Entire IC DC/DC A DC/DC B DC/DC C...
Page 33 TB62217AFG (1) Extreme Voltage Drop Protection Function VSD (when detected, the IC is shut down) Set voltage + 40% (typ.) Set voltage DC-DC converter Set voltage − 30% (typ.) Channel A/B/C output 12~16 CLK Reset output (2) Extreme Voltage Drop Protection Function VSD During Current Limiter Operation (when detected, the IC is shut down) Set voltage + 40% (typ.)
Page 34: Power Supply Sequence
TB62217AFG Power Supply Sequence If the C_SELECT pin is driven mid or high The 1st DC-DC converter represents channel B, and the 2nd DC-DC converter, channel A or C. 10 µ s Internal logic start Internal logic 10 ms 1st DC-DC converter operation start...
Page 35: Maximum Ratings
TB62217AFG (Ta = 25°C) Maximum Ratings Characteristics Symbol Rating Unit Remark Motor output voltage A/phase Stepper Motor output current DC motor S (500 ns) OSAP (Note 1) (Note 2) DC motor S (100 ms) OSAE CO A DC-DC converter output current...
Page 36: Recommended Operating Conditions
TB62217AFG (Ta = 0 to 85°C) Recommended Operating Conditions Characteristics Symbol Test Condition Typ. Unit Excluding motor block (Note 1) VM supply voltage Motor block Per phase (in single-axis drive) at Ta = ⎯ Stepper 25 ° C Per H-bridge with peak of 500 ns at Ta ⎯...
Page 37 TB62217AFG Motor Block Electrical Characteristics 1 (unless otherwise specified, Ta = 25°C and VM = 18V ~ 40 V) Test Characteristics Symbol Test Condition Typ. Unit Circuit ⎯ ⎯ HIGH CLK, STROBE, DATA, ENABLE, Logic input voltage SLEEP, and PHASE logic input ⎯...
Page 38 TB62217AFG Motor Block Electrical Characteristics 2 (unless otherwise specified, Ta = 25°C and VM =18V ~ 40 V) Test Characteristics Symbol Test Condition Typ. Unit Circuit ⎯ Vref input voltage Vref When motor output is active When motor output is inactive and ⎯...
Page 39 TB62217AFG Electrical Characteristics DC_3 (unless otherwise specified, Ta = 25°C, VM =18V ~ 40 V, and motor Iout = 1.0 A) Test Characteristics Symbol Test Condition Typ. Unit Circuit θ A = 90 ( θ 16) ⎯ ⎯ θ A = 84 ( θ 15) ⎯...
Page 40 TB62217AFG (unless otherwise specified, Ta = 25°C and VM = 40 V) Electrical Characteristics DC_4 Test Characteristics Symbol Test Condition Typ. Unit Circuit (Automatically created within the Internal logic supply voltage External capacitance: Under consideration ⎯ TSD operating temperature °C (Note 1) −...
Page 41 TB62217AFG = 0 to 120°C and VM = 7 to 40 V) DC-DC Converter Block Electrical Characteristics Test Characteristics Symbol Test Condition Typ. Unit Circuit VM = 6.5 V~40 V = 0~120°C ∆ Vout − 7.0 Output voltage error 0.5 mA~600 mA (large) 0.5 mA~300 mA (small)
Page 42 TB62217AFG Motor Block AC Electrical Characteristics (Ta = 25°C, VM = 40 A, and motor impedance = 6.8 mH/5.7 Ω) Test Characteristics Symbol Test Condition Typ. Unit Circuit Vin = 3.3 V ⎯ Input clock frequency fCLK CLK input pin ⎯...
Page 43 TB62217AFG Control signal timing chart tw(CLK) CLOCK 50％ tsuST-CLK thCLK-ST twn(CLK) twp(CLK) STROBE tSTROBE(H) tSTROBE(L) tSTROBE thCLK-ST tsuSIN-CLK DATA15 DATA0 DATA1 DATA OSCM tpHL(OSCM) fOSC_M tpHL(STB) OUT A（-） tpLH(OSCM) tpLH(STB) OUT A（+） PHASE tpHL(PHASE) OUT A（-） tpLH(PHASE) OUT A（+） ENABLE...
Page 44 TB62217AFG = 0 to 120°C and VM = 40 V) DC-DC Converter AC Electrical Characteristics Test Characteristics Symbol Test Condition Typ. Unit Circuit ⎯ ⎯ tr_D(L) Output transistor switching VM = 40 V, DCDC Ach (Large) µ s characteristic (large) ⎯...
Page 45 TB62217AFG = 0 to 120°C and VM = 7 to 40 V) Other Electrical Characteristics AC Test Characteristics Symbol Test Condition Typ. Unit Circuit From VM power-on POR release Startup reset release time 1 trst1 ⎯ ⎯ fosc_M = 800 kHz (114688 clock...
Page 46 TB62217AFG Calculating the Motor Setting Constant Current The motor setting current value is determined by R and Vref as follows: input serial data Torque (Torque 100, 入力シリアルデータ Iout (max) = Vref (gain) × Vref (V) × Ω × 100% Assume, for example: Vref (gain) = 1/10: The attenuation ratio is typically 1/10 when Vref = 1/10.
Page 47 TB62217AFG Power Supply Sequence (1) If C_SELECT = low POR release voltage Soft start mode 20 ms Active DC/DC ALL OFF Full mode status Non-active 10 ms 320 ms Re-writable Init DATA All clear Initial value Rewritten with serial data...
Page 48 TB62217AFG (2) Normal Start (C_SELECT = mid or high) VM = 15.0 V POR release voltage Soft start mode 20ms Active DC/DC ALL OFF Full mode status Non-active 10 ms 10 ms ＨＬ Re-writable Init DATA Rewritten with serial data...
Page 49 TB62217AFG (3) If VM Voltage Drops at Startup (C_SELECT = mid or high) voltage Soft start 10 ms mode 20 ms Below 10 µ s Active DC/DC ALL OFF Full mode status Non-active 10 ms Initialize Re-writable Init DATA...
Page 50 TB62217AFG (4) VM Voltage Drop (normal) VM = 15.0 V voltage VM = 0 V Active DC/DC Full mode ALL OFF status Non-active 10 µ s Re-writable Init DATA ALL L Rewritten with serial data Extended DATA All cleared...
Page 51 TB62217AFG (5) Supply Voltage Drop (if the VM supply voltage does not cross the POR level) VM = 15 V voltage VM = 0 V Active DC/DC Full mode status Non-active ORT = H Re-writable Init DATA Rewritten with serial data ...
Page 52 TB62217AFG (6) Supply Voltage Drop (if the VM supply voltage crosses the POR level) VM = 15 V Shut down (ALL OFF) voltage Initialize DCDC start VM = 0 V Soft start 10 µ s mode 20 ms Active...
Page 53 TB62217AFG Mixed decay Mode Current Waveform and Setting In constant-current control, the current fluctuation width (current pulsating component) decay mode can be set to any of four points, 0 to 3, using 2-bit serial data. The abbreviation “NF” stands for “negative feedback”. It refers to a point where the output current has reached the set current value.
Page 54 TB62217AFG Relationships Between the OSC_M and Output Drive Timing OSC-charge delay OSC-fast delay fosc _M chop Output voltage A Output voltage Set current Output current Charge Slow Fast OSC_M and Charge Delay A delay of up to 1.25 ns (when f...
Page 55 TB62217AFG VSD Threshold Change Timing During DC-DC Converter Block Current Limiter Operation When the limiter enters an operating state, the VSD circuit starts operating if this state continues for 3 OSC_D periods. OSC_D OSC_D_CLK (Internal signal) Case 1 Limiter operating state...
Page 56 TB62217AFG Output-stage Transistor Operation Mode Note Note Note Load Load Load PGND PGND PGND Change mode Slow mode Fast mode Output-stage Transistor Operation Functions CHARGE SLOW FAST Note: The above table summarizes how each transistor behaves when the current flows in the indicated direction.
Page 57 Transient thermal resistance of THQFP64 stand-alone and on a PC board (for reference only) Rth (stand-alone) Rth (4-layer board) (for reference only) Temperature (°C) THQFP64-P-1010-0.50 Note: The board assumed in simulation is Toshiba's ideal board (for reference only). 2004-11-12...
Page 58 TB62217AFG Operating Time of The Motor Over Current Protection Circuit (ISD dead band time and ISD operating time) fosc_M oscillation Output stop (RESET state) (chopping reference waveform) Fosc (OSC_M) Dead band time ISD operating time ISD BLANK time ...
Page 59: Application Circuit Example
TB62217AFG Application Circuit Example 0.1ohm 0.1ohm For C_SEL:2.5V 200kohm from ASIC ENABLE SD TEST from ASIC ENABLE SC 3.3V Th̲OUT 1kohm 100uF LOGIC̲OUT 1kohm 330uH 1kohm LGND VREF SCD LGND VREF SAB VM(27V) VDIN2 OSCM 220pF 100uF VDIN1 120pF OSCD from ASIC ENABLE SB 330uH 0.1uF...
Page 60 TB62217AFG Marking （）（）４４４２６Ａ１１４２６Ａ１１Ｇ：Ｇ： 2004-11-12...
Page 61 TB62217AFG Package Dimensions (THQFP64-P-1010-0.50) Heat sink Weight: 0.45 g (typ.) Note: The heat sink provided on the bottom surface of the package is 5.5 mm × 5.5 mm (tentative). 2004-11-12...

Toshiba TB62217AFG Manual

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Related Manuals for Toshiba TB62217AFG

Summary of Contents for Toshiba TB62217AFG

Page 9: Overall Block Diagram

Page 17: Dc-Dc Converter Circuit

Page 34: Power Supply Sequence

Page 35: Maximum Ratings

Page 36: Recommended Operating Conditions

Page 59: Application Circuit Example

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