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A3983 Datasheet DMOS Microstepping Driver

Manufacturer: Allegro MicroSystems

General Description

The A3983 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 eighth-step modes, with an output drive capacity of up to 35 V and ±2 A.

The A3983 includes a fixed off-time current regulator which has the ability to operate in Slow or Mixed decay modes.

Overview

A3983 DMOS Microstepping Driver with Translator.

Key Features

  • 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.