• Part: A5989
  • Description: Bipolar Stepper and High-Current DC Motor Driver
  • Manufacturer: Allegro MicroSystems
  • Size: 1.16 MB
A5989 Datasheet (PDF) Download
Allegro MicroSystems
A5989

Description

The A5989 is designed to operate at voltages up to 40 V while driving one bipolar stepper motor at currents up to 1.6 A, and one DC motor at currents up to 3.2 A. The A5989 includes a fixed off-time pulse-width modulation (PWM) regulator for current control.

Key Features

  • 40 V output rating
  • 3.2 A DC motor driver
  • 1.6 A bipolar stepper driver
  • Synchronous rectification
  • Internal undervoltage lockout (UVLO)
  • Thermal shutdown circuitry
  • Crossover-current protection
  • Very thin profile QFN package
  • Overcurrent protection
  • Low-power sleep mode