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Semiconductor Components Industries, LLC, 2013
December, 2013
http://onsemi.com
LV8740V
Overview
The LV8740V is a 2-channel H-bridge driver IC that can switch a stepper motor driver, which is capable of
micro-step drive and supports Full-step, Half-step (full torque), Half-step, and Quarter-step resolution, and
two channels of a brushed motor driver, which supports forward, reverse, brake, and standby of a motor.
Function
Single-channel PWM current control stepper motor driver (selectable with DC motor driver channel 2)
incorporated.
BiCDMOS process IC
On resistance (upper side: 0.3; lower side: 0.2; total of upper and lower: 0.5; Ta = 25C, I
O
= 2.5A)
Micro step mode can be set to Full-step, Half-step (full torque), Half-step, or Quarter-step mode
Excitation step proceeds only by step signal input
Motor current selectable in four steps
Output short-circuit protection circuit (selectable from latch-type or auto reset-type) incorporated
Unusual condition warning output pins
Built-in thermal shutdown circuit
No control power supply required
Typical Applications
MFP (Multi Function Printer)
PPC (Plain Paper Copier)
LBP (Laser Beam Printer)
Scanner
Industrial
Cash Machine
Amusement
Textile
Bi-CMOS LSI
PWM Current Control
Stepper Motor Driver
Application Note
页面指南
