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A4983 Datasheet Dmos Microstepping Driver

Manufacturer: Allegro MicroSystems

Overview: A4983 DMOS Microstepping Driver with Translator.

General Description

The A4983 is a plete 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.

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.
  • Crossover-current protection.
  • 3.3 and 5 V compatible logic supply.
  • Very thin profile QFN package.
  • Thermal shutdown circuitry.

A4983 Distributor