LV8729V Datasheet, PDF (1/26 Pages) Sanyo Semicon Device – PWM Constant-Current Control Stepping Motor Driver

Ordering number : ENA1702C
LV8729V
Bi-CMOS LSI
PWM Constant-Current Control
Stepping Motor Driver
Overview
The LV8729V is a PWM current-controlled microstep bipolar stepping motor driver.
This driver can perform eight times of excitation of the second phase to 32W1-second phase and can drive simply by the
CLK input.
Features
• Single-channel PWM current control stepping motor driver.
• BiCDMOS process IC.
• Output on-resistance (upper side : 0.35Ω ; lower side : 0.3Ω ; total of upper and lower : 0.65Ω ; Ta = 25°C, IO = 1.8A)
• 2-phase, 1-2 phase, W1-2 phase, 2W1-2 phase, 4W1-2 phase, 8W1-2 phase, 16W1-2 phase, 32W1-2 phase excitation are
selectable.
• Advance the excitation step with the only step signal input.
• Available forward reverse control.
• Over current protection circuit.
• Thermal shutdown circuit.
• Input pull down resistance
• With reset pin and enable pin.
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Maximum output peak current
Maximum logic input voltage
Maximum VREF input voltage
Maximum MO input voltage
Symbol
VM max
IO max
VIN max
VREF max
VMO max
Conditions
Ratings
Unit
36
V
1.8
A
6
V
6
V
6
V
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20211 SY/90110 SY/81110 SY/42110 SY 20100331-S00001 No.A1702-1/26