Brush DC Drivers

Microstepping DMOS Driver with 1/16-Step Resolution and Integrated Translator

A3979

The A3979 offers precise and versatile microstepping control for bipolar stepper motors, featuring 1/16-step resolution, an integrated translator for simplified control, and selectable current decay modes for optimized performance.

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Product Details

Top Features

  • ±2.5 A, 35 V output rating
  • Low RDS(On) outputs: 0.28 Ω source, 0.22 Ω sink, typical
  • Automatic current decay mode detection/selection
  • 3.0 to 5.5 V logic supply voltage range
  • Slow, Fast or Mixed current decay modes
  • Home output
  • Synchronous rectification for low power dissipation
  • Internal UVLO and thermal shutdown circuitry
  • Crossover-current protection
Target Application

Part Number Specifications and Availability

Design Tools

ECAD FILE

A3979

A3979 ECAD Model Type Image
Software

Software Portal

Technical Documentation

Microstepping Motor-Driver IC with Integrated Step and Direction Translator Interface
Application Note

Microstepping Motor-Driver IC with Integrated Step and Direction Translator Interface

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