Description

The A4983 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-, eighth, and sixteenth-step modes, with an output drive capacity of up to 35 V and ±2 A. The A4983 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

▪Crossover-current protection

▪ 3.3 and 5 V compatible logic supply

▪ Very thin profile QFN package

▪ Thermal shutdown circuitry