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