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A4931

Part Number	A4931
Manufacturer	Allegro MicroSystems
Description	3-Phase Brushless DC Motor Pre-Driver
Published	Feb 26, 2019
Detailed Description	A4931 3-Phase Brushless DC Motor Pre-Driver Features and Benefits ▪ Drives 6 N-channel MOSFETs ▪ Synchronous rectificat...
Datasheet	A4931 PDF File

Overview

A4931 3-Phase Brushless DC Motor Pre-Driver Features and Benefits ▪ Drives 6 N-channel MOSFETs ▪ Synchronous rectification for low power dissipation ▪ Internal UVLO and thermal shutdown circuitry ▪ Hall element inputs ▪ PWM current limiting ▪ Dead time protection ▪ FG outputs ▪ Standby mode ▪ Lock detect protection ▪ Overvoltage protection Package: 28-contact QFN (ET package) Approximate Scale 1:1 Description TheA4931 is a complete 3-phase brushless DC motor pre-driver.
The device is capable of driving a wide range of N-channel power MOSFETs and can support motor supply voltages up to 30 V.
Commutation logic is determined by three Hall-element inputs spaced at 120°.
Other features include ...

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