LV8740V Datasheet, PDF (1/23 Pages) Sanyo Semicon Device – PWM Current Control Stepping Motor Driver

Ordering number : ENA1864
LV8740V
Bi-CMOS LSI
PWM Current Control Stepping
Motor Driver
Overview
The LV8740V is a 2-channel H-bridge driver IC that can switch a stepping motor driver, which is capable of micro-step
drive and supports W 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.
• On resistance (upper side : 0.3Ω ; lower side : 0.2Ω ; total of upper and lower : 0.5Ω ; Ta = 25°C, IO = 2.5A)
• Excitation mode can be set to 2-phase, 1-2 phase full torque, 1-2 phase or W1-2 phase
• Excitation step proceeds only by step signal input
• Motor holding current selectable in four steps
• BiCDMOS process IC
• Output short-circuit protection circuit (selectable from latch-type or auto reset-type) incorporated
• Unusual condition warning output pins
• Supports control power supply
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Supply voltage 1
Output peak current
Output current
Logic input voltage
MONI/EMO input voltage
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VM max
IO peak
IO max
VIN
VMONI/VEMO
Pd max
Topr
Tstg
Conditions
tw ≤ 10ms, duty 20%, Each 1ch
Each 1ch
*
* Specified circuit board : 90×90×1.6mm³ : 2-Layer glass epoxy printed circuit board with back mounting.
Ratings
Unit
38
V
3.0
A
2.5
A
-0.3 to +6.0
V
-0.3 to +6.0
V
3.45
W
-30 to +85
°C
-55 to +150
°C
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"standard application", intended for the use as general electronics equipment (home appliances, AV equipment,
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Specifications of any and all SANYO Semiconductor Co.,Ltd. products described or contained herein stipulate
the performance, characteristics, and functions of the described products in the independent state, and are not
guarantees of the performance, characteristics, and functions of the described products as mounted in the
customer's products or equipment. To verify symptoms and states that cannot be evaluated in an independent
device, the customer should always evaluate and test devices mounted in the customer's products or
equipment.
N1010 SY 20101015-S00001 No.A1864-1/23