Datasheet4U Logo Datasheet4U.com

A1442 - Low Voltage Full Bridge Brushless DC Motor Driver

General Description

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 all the necessary electronics.

Overview

A1442 Low Voltage Full Bridge Brushless DC Motor Driver with Hall Commutation and Soft Switching, and Reverse Battery, Short Circuit, and Thermal Shutdown.

Key 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 chopper stabilization technique for precise signal response over operating range.
  • Sleep mode pin allowing external logic signal enable/ disable to reduce average power cons.