A3984 Datasheet PDF - Allegro MicroSystems

Description

●The A3984 is a complete microstepping motor driver with built-in translator for easy operation. It is designed to operate bipolar stepper motors in full-, half-, quarter-, and sixteenth-step modes, with an output drive capacity of up to 35 V and ±2 A. The A3984 includes a fixed off-time current regulator which has the ability to operate in Slow or Mixed decay modes.

●Features and Benefits

●▪Low RDS(ON) outputs

●▪Automatic current decay mode detection/selection

●▪Mixed and Slow current decay modes

●▪Synchronous rectification for low power dissipation

●▪Internal UVLO and thermal shutdown circuitry

●▪Crossover-current protection