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A3982 Datasheet DMOS Stepper Motor Driver

Manufacturer: Allegro MicroSystems

General Description

The A3982 is a complete stepper motor driver with built-in translator for easy operation.

It is designed to operate bipolar stepper motors in full- and half-step modes, with an output drive capacity of up to 35 V and ±2 A.

The A3982 includes a fixed off-time current regulator which has the ability to operate in Slow or Mixed decay modes.

Overview

A3982 DMOS Stepper Motor 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.