|Category||Interface and Interconnect|
|Description||4-phase Stepping Motor Driver Unipolar Self-excitation Type|
|Company||Sanyo Semiconductor Corporation|
|Datasheet||Download STK6711AMK4 datasheet
|Cross ref.||Similar parts: TB67S141NG|
4-Phase Stepping Motor Driver Unipolar Self-Excitation Type (IO=1.5A)
The is a unipolar fixed-current choppertype self-excitation 4-phase stepping motor driver hybrid IC which uses MOSFET power devices. The excitation sequence signal is active-high.Applications
Serial printer, line printer, and laser beam printer (LBP) paper feed and carriage motor drivers. PPC scanner and LBP feed drivers.Features
Simultaneous ON prevention circuit built-in to prevent driver breakdown due to simultaneous ON control signals from the control system's microcontroller, etc. Self-excitation design means chopping frequency is determined by motor L and R. Supports chopping 20kHz or higher. Two 0.33 current detection resistors built-in for fixedcurrent chopping operation. Wide operating supply voltage range to 42V for motor drive). Unipolar design enables use as a driver for hybrid, PM, or VR-type stepping motors Supports W1-2 phase operation, with dual Vref pins.
The following devices from a series with differing excitation signal active level and output capacity. Some of the following devices are under development. Contact your Sanyo sales representative if you require more detailed information.
Type No. STK6714AMK4 STK6714BMK4 Excitation signal Active-high Active-low Active-high Active-low Active-high Active-low Active-high Active-low Output current (per phase) 1.5A Selfexcitation Type
Any and all SANYO products described or contained herein do not have specifications that can handle applications that require extremely high levels of reliability, such as life-support systems, aircraft's control systems, or other applications whose failure can be reasonably expected to result in serious physical and/or material damage. Consult with your SANYO representative nearest you before using any SANYO products described or contained herein in such applications. SANYO assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges,or other parameters) listed in products specifications of any and all SANYO products described or contained herein.TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Parameter Maximum supply voltage 1 Maximum supply voltage 2 Maximum phase current Repeated avalanche handling capability Junction temperature Operating substrate temperature Storage temperature Symbol VCC1 max VCC2 max IOH max Ear max Tj max Tc max Tstg No input signal No input signal 1× 0.5s pulse, VCC applied Conditions Ratings to +125 Unit mJ °C
Parameter Supply voltage 1 Supply voltage 2 Phase driver withstand voltage Phase current Symbol VCC1 VCC2 VDSS IOH max With input signal With input signal 50% duty Conditions Ratings min typ max 42 5.25 Unit
Parameter Output saturation voltage Average output current Pin current drain FET diode forward voltage TTL-input high level voltage TTL-input low level voltage Switching time Symbol Vst Ioave ICC2 Vdf VIH VIL tON tOFF Conditions RL=23, Vin=2.4V Load L=3.8mH, Vin=2.4V, per phase Load L=3.8mH, Vin=2.4V, per phase If=1.0A Input voltage when F4 ON Input voltage when F3, F4 OFF RL=24, Vin=2.4V Ratings min 0.45 typ max Unit ns µsNote : All tests are made using a constant-voltage supply.
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