• Part: A3977
  • Description: Microstepping DMOS Driver
  • Manufacturer: Allegro MicroSystems
  • Size: 769.97 KB
A3977 Datasheet (PDF) Download
Allegro MicroSystems
A3977

Description

The A3977 is a plete microstepping motor driver with built-in translator.

Key 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
  • Mixed, fast, and slow current decay modes
  • Synchronous rectification for low power dissipation
  • Internal UVLO and thermal shutdown circuitry
  • Crossover-current protection