82098HA (KT)/5231TS (KOTO)/5310TA (KOTO) No.3664-1/4
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquaters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
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
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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.
Monolithic Digital IC
LB1657M
2-Phase Stepping Motor Driver
Ordering number:EN3664A
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Package Dimensions
unit:mm
3097-MFP16FS
[LB1657M]
Overview
The LB1657M is a dual bridge driver IC suited for use in
2-phase bipolar stepping motor driver for FDD (3 to 5.25
inches) head actuator.
The maximum driver current
×
voltage is 0.33A
×
12V/
bridge.
Features
Power save function.
1, 2 direction inputs are used to make driver output
selection.
Low saturation voltage.
Low current drain.
Direct controllable from MPU due to low input current.
Input level : TTL, LSTTL, 5V CMOS compatible.
On-chip thermal shutdown (TSD) circuit.
Specifications
Absolute Maximum Ratings
at Ta = 25C
Allowable Operating Conditions
at Ta = 25C
SANYO : DMFP16FS