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A4957

Part Number	A4957
Manufacturer	Allegro
Description	Full Bridge MOSFET Driver
Published	Aug 22, 2020
Detailed Description	A4957 Full Bridge MOSFET Driver FEATURES AND BENEFITS ▪ High-current gate drive for N-channel MOSFET full bridge ▪ Inde...
Datasheet	A4957 PDF File

Overview

A4957 Full Bridge MOSFET Driver FEATURES AND BENEFITS ▪ 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 QFN with exposed thermal pad (Suffix ES) Not to scale DESCRIPTION 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...

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