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A3966 Datasheet Dual Full-Bridge PWM Motor Driver

Manufacturer: Allegro MicroSystems

General Description

The A3966 is designed to drive both windings of a two-phase bipolar stepper motor.

The device includes two full-bridges capable of continuous output currents of ±650 mA and operating voltages to 30 V.

Motor winding current can be controlled by the internal fixed-frequency, pulse-width modulated (PWM), current-control circuitry.

Overview

A3966 Dual Full-Bridge PWM Motor Driver.

Key Features

  • ±650 mA continuous output current.
  • 30 V output voltage rating.
  • Internal fixed-frequency PWM current control.
  • Satlington® sink drivers.
  • User-selectable blanking window.
  • Internal ground-clamp and flyback diodes.
  • Internal thermal-shutdown circuitry.
  • Crossover-current protection and UVLO protection.