A4973 Datasheet - Allegro MicroSystems

A4973 Full-Bridge PWM Motor Driver

Designed for bidirectional pulse-width-modulated (PWM) current control of inductive loads, the A4973 is capable of continuous output currents to ±1.5 A and operating voltages to 50 V. Internal fixed off-time PWM current control circuitry can be used to regulate the maximum load current to a desired .

A4973 Features

* ▪ ±1.5 A continuous output current ▪ 50 V output voltage rating ▪ 3 to 5.5 V logic supply voltage ▪ Internal PWM current control ▪ Fast and slow current decay modes ▪ Sleep (low current consumption) mode ▪ Internal transient-suppression diodes ▪ Internal thermal shutdown circuitry ▪ Crossover curren

A4973_AllegroMicroSystems.pdf