LV8731V

PWM恒流控制步进电机驱动器 PWM Constant-Current Control Stepper Motor Driver

The is a 2-channel H-bridge driver IC that can switch a stepper 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 stepper motors used in office equipment and amusement applications.

Features |   | Benefits

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Low on resistance upper side : 0.3Ω; lower side : 0.25Ω; total of upper and lower : 0.55Ω; Ta = 25°C, IO = 2A

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High Efficiency

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Excitation mode can be set to 2-phase, 1-2 phase, W1-2 phase , or 4W1-2 phase

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Various Step Adjustment Available

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Motor current selectable in four steps

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Low Consumption

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Output short-circuit protection circuit selectable from latch-type or auto-reset-type incorporated

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Safety Design

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No control power supply required

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Easy Design

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CLK-IN Input

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Easy Control for Micro-step Drive

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Single-channel PWM current control stepper motor driver selectable with DC motor driver channel 2 incorporated.

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BiCDMOS process IC

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Excitation step proceeds only by step signal input

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Unusual condition warning output pins

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