A4987 Datasheet (Allegro) - DMOS Dual Full-Bridge PWM Motor Driver

A4987, DMOS Dual Full-Bridge PWM Motor Driver

The A4987 is a dual DMOS full-bridge stepper motor driver with parallel input communication and overcurrent protection.

Each full-bridge output is rated up to 35 V and ±1 A.

The A4987 includes fixed off-time pulse width modulation (PWM) current regulators, along with 2- bit nonlinear DACs (digital-t

A4987 Features

* ▪ Low RDS(ON) outputs ▪ Internal mixed current decay mode ▪ Synchronous rectification for low power dissipation ▪ Internal UVLO ▪ Crossover-current protection ▪ 3.3 and 5 V compatible logic supply ▪ Thin profile QFN and TSSOP packages ▪ Thermal shutdown circuitry ▪ Short-to-ground protection ▪ Short