A4975 Datasheet - Allegro MicroSystems

A4975 Full-Bridge PWM Microstepping Motor Driver

The A4975 is designed to drive one winding of a bipolar stepper motor in a microstepping mode. The outputs are rated for continuous output currents to ±1.5 A and operating voltages to 50 V. Internal pulse-width-modulated (PWM) current control combined with an internal three-bit nonlinear digitalto-a.

A4975 Features

* ▪ ±1.5 A continuous output current ▪ 50 V output voltage rating ▪ Internal PWM current control ▪ 3-bit nonlinear DAC ▪ Fast, mixed fast/slow, and slow current decay modes ▪ Internal thermal shutdown circuitry ▪ Crossover-current and UVLO protection PACKAGES: Package B, 16-pin DIP with exposed tabs

A4975_AllegroMicroSystems.pdf