A1442 Datasheet - Allegro Microsystems

A1442 Low Voltage Full Bridge Brushless DC Motor Driver

The A1442 is a full-bridge motor driver designed to drive lowvoltage, brushless DC motors. Commutation of the motor is achieved by use of a single Hall element to detect the rotational position of an alternating-pole ring magnet. A high-density CMOS semiconductor process allows the integration of al.

A1442 Features

* ▪ Low voltage operation ▪ Reverse voltage protection on VDD and S¯¯L¯¯E¯¯E¯¯P pins ▪ Output short circuit and thermal shutdown protections ▪ Soft switching algorithm to reduce audible switching noise and EMI interference ▪ Unidirectional working mode provides motor rotation in one direction ▪ Hall c

A1442_AllegroMicrosystems.pdf