LV8731V Datasheet, PDF (1/26 Pages) Sanyo Semicon Device – Bi-CMOS LSI PWM Constant-Current Control Stepping Motor Driver

Ordering number : ENA1482A
LV8731V
Bi-CMOS LSI
PWM Constant-Current Control
Stepping Motor Driver
Overview
The LV8731V is a 2-channel H-bridge driver IC that can switch a stepping motor driver, which is capable of micro-step
drive and supports 4W 1-2 phase excitation, and two channels of a brushed motor driver, which supports forward, reverse,
brake, and standby of a motor. It is ideally suited for driving brushed DC motors and stepping motors used in office
equipment and amusement applications.
Features
• Single-channel PWM current control stepping motor driver (selectable with DC motor driver channel 2) incorporated.
• BiCDMOS process IC
• Low on resistance (upper side : 0.3Ω ; lower side : 0.25Ω ; total of upper and lower : 0.55Ω ; Ta = 25°C, IO = 2A)
• Excitation mode can be set to 2-phase, 1-2 phase, W1-2 phase , or 4W1-2 phase
• 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
• No control power supply required
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Supply voltage
Output peak current
Output current
Logic input voltage
MONI/EMO input voltage
Symbol
VM max
IO peak
IO max
VIN
Vmoni/Vemo
Conditions
tw ≤ 10ms, duty 20%
Ratings
Unit
36
V
2.5
A
2
A
-0.3 to +6
V
-0.3 to +6
V
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D0909 SY / 82609 MS PC 20090512-S00006 No.A1482-1/26