A4992 Datasheet - Allegro

A4992 Automotive Stepper Driver

The A4992 is a flexible microstepping motor driver with integrated phase current control and a built-in translator for easy operation. It is a single chip solution designed to operate bipolar stepper motors in full, half, quarter, eighth, and sixteenth step modes, at up to 28 V. At power-on, the A49.

A4992 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 under

A4992-Allegro.pdf