The A89505 and A89506 full-bridge gate drivers serve as effective replacements for relays and closing systems and can also be used to drive DC motors and actuators in conventional, hybrid, and electric vehicles. These drivers are ideal for applications such as window and door actuators, EV charger locks, electronic parking brakes, and folding mirrors.

The solid-state design makes it ideal for battery-powered applications incorporating brushed DC motors, such as building automation and robotics, improving reliability and battery life while enabling a smaller design footprint.

Offering options for direct control (A89505) and pulse width modulation (A89506), these devices integrate critical functions to minimize external circuitry and reduce system footprint. Reliability is improved by replacing mechanical relays with solid-state drivers. Current sensing can be achieved without external current sense resistors, and current information can be read as feedback via analog logic level outputs.

The A89505 and A89506 feature programmable gate drives to reduce EMI. Fault outputs are provided to notify a microprocessor of bridge short and overcurrent events. Internal PWM current control with adjustable current limit controls load peak current, prevents overheating under stalled motor conditions, and limits inrush current. These gate drivers also provide a PWM interface to control the load current.

Designed to rugged automotive standards and AEC-Q100 qualification, the A89505 and A89506 are ideal for close system and relay replacement applications, providing improved reliability and performance in one of the smallest packages in the industry.