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A4915

Allegro MicroSystems
Part Number A4915
Manufacturer Allegro MicroSystems
Description 3-Phase MOSFET Driver
Published Feb 26, 2019
Detailed Description A4915 3-Phase MOSFET Driver FEATURES AND BENEFITS • 5 to 50 V supply voltage • Latched TSD with fault output • Drives s...
Datasheet PDF File A4915 PDF File

A4915
A4915

Overview
A4915 3-Phase MOSFET Driver FEATURES AND BENEFITS • 5 to 50 V supply voltage • Latched TSD with fault output • Drives six N-channel high current MOSFETs • Internally controlled synchronous rectification • Speed voltage input enables internal PWM duty cycle control of full bridge • Center aligned PWM • Internal UVLO and crossover current protection • Hall switch inputs • Adjustable dead time protection • Low power sleep mode for battery-powered applications PACKAGES: 28-pin TSSOP with exposed thermal pad (LP package) 28-contact QFN 5 mm × 5 mm × 0.
90 mm (ET package) Not to scale DESCRIPTION The A4915 is designed for pulse width modulated (PWM) current control of 3-phase brushless DC motors.
The A4915 is capable of high current gate drive for 6 all N-channel power MOSFETs.
An internal charge pump ensures gate drive down to 7 V supply and provides limited gate drive down to 5 V.
A bootstrap capacitor is used to generate a supply voltage greater than the source voltage of the high sid...


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