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Ordering number : ENA1702D
LV8729V
Bi-CMOS IC
PWM Constant-Current Control Stepper Motor Driver
http://onsemi.com
Overview
The LV8729V is a PWM current-controlled microstep bipolar stepper 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.
Function
• Single-channel PWM current control stepper 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.