Brush DC Drivers

Automotive Microstepping Stepper Driver with Integrated Current Control

A4992

Serving as a replacement for the AMT49702 Quad DMOS Full-Bridge PWM Motor Driver.

The A4992 simplifies stepper motor control with integrated phase current control, a built-in translator for easy microstepping, and adaptive mixed current decay for quiet and efficient operation.

Product Details

Top Features

  • Low RDS(on) outputs, 0.5 Ω source and sink typical
  • Continuous operation at high ambient temperature
  • 3.5 to 50 V supply operation
  • Adaptive mixed current decay
  • Synchronous rectification for low power dissipation
  • Internal overvoltage and undervoltage lockout
  • Hot warning and overtemperature shutdown
  • Crossover-current protection
  • Short circuit and open load diagnostics
  • Stall detect features
  • Configurable through serial interface
Target Application

Part Number Specifications and Availability

Design Tools