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A4935

Allegro
Part Number A4935
Manufacturer Allegro
Description Automotive 3-Phase MOSFET Driver
Published Mar 27, 2020
Detailed Description A4935 Automotive 3-Phase MOSFET Driver FEATURES AND BENEFITS ▪ High current 3-phase gate drive for N-channel MOSFETs ▪ ...
Datasheet PDF File A4935 PDF File

A4935
A4935

Overview
A4935 Automotive 3-Phase MOSFET Driver FEATURES AND BENEFITS ▪ High current 3-phase gate drive for N-channel MOSFETs ▪ Cross-conduction protection with adjustable dead time ▪ Top-off charge pump for 100% PWM ▪ Charge pump for low supply voltage operation ▪ Uncommitted current sense amplifier ▪ 5.
5 to 50 V supply voltage range ▪ Compatible with 3.
3 V and 5 V logic ▪ Extensive diagnostic outputs ▪ Low-current sleep mode PACKAGE: 48-pin LQFP with exposed thermal pad (suffix JP) DESCRIPTION The A4935 is a 3-phase controller for use with N-channel external power MOSFETs and is specifically designed for automotive applications.
A unique charge pump regulator provides full (>10 V) gate drive for battery voltages down to 7 V and allows the A4935 to operate with a reduced gate drive, down to 5.
5 V.
A bootstrap capacitor is used to provide the above-battery supply voltage required for N-channel MOSFETs.
An internal charge pump for the high-side drive allows DC (100% duty cycle) operation.
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