The A4950KLJTR-T from Allegro MicroSystems Full-Bridge DMOS Motor Driver has been designed for pulse width modulated (PWM) control of DC motors. It requires an input voltage of up to 40 V and provides an output current of ±3.5 A. This driver utilizes input terminals for controlling the speed and direction of a DC motor using externally applied PWM control signals. It features an internal synchronous rectification control circuitry to reduce power dissipation during PWM operation.
This motor driver includes built-in safety features such as over-current protection, motor lead short-to-ground or supply protection, thermal shutdown with hysteresis, under-voltage monitoring of VBB pin, and crossover-current protection. It has also been tested across extended temperature and voltage ranges to ensure compliance in automotive or industrial applications. This AEC-Q100 Grade 1-qualified motor driver is available in a surface-mount package that measures 4.9 x 6 mm and is ideal for commercial and industrial applications.