Microstepping Motor Driver IC with Integrated Step and Direction Translator Interface

A new series of microstepping motor driver integrated circuits with an integrated step and direction translator interface has been developed specifically to drive bipolar stepper motors. These new ICs incorporate several unique design features, including automatic mixed-mode current decay control, PWM current control, synchronous rectification, low RDS(on) power DMOS outputs, full-, half-, quarter-, eighth-, and sixteenth-step operation, HOME output, sleep mode, and an easy-to-implement step and direction interface.

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