A4957 Datasheet (Allegro) - Full Bridge MOSFET Driver

A4957, Full Bridge MOSFET Driver

The A4957 is a full-bridge controller for use with external N-channel power MOSFETs and is specifically designed for applications with high-power inductive loads such as brush DC motors.

A unique charge pump regulator provides full ( >10 V ) gate drive for battery voltages down to 7 V and allows the

A4957 Features

* ▪ High-current gate drive for N-channel MOSFET full bridge ▪ Independent control of each MOSFET ▪ Charge pump for low supply voltage operation ▪ Cross-conduction protection with adjustable dead time ▪ 4.5 to 50 V supply voltage range ▪ Diagnostics output ▪ Low current sleep mode PACKAGE: 24-contact