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3-Phase MOSFET Driver with Synchronous Rectification and PWM Control

A4915

Allegro-28-terminal-QFN-ET-and-28-pin-TSSOP-LP-packages

The A4915 simplifies 3-phase motor drive designs by integrating synchronous rectification for improved efficiency, internal PWM control, and built-in protection features, reducing external component count and design complexity.

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Product Detail
Availability
Documentation and Resources

Top Features

Packaging

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

28-pin TSSOP with exposed thermal pad (LP package)

LP Package Documentation

28-contact QFN 5 mm x 5 mm x 0.90 mm (ET package)

ET Package Documentation

Part Number Specifications and Availability

Results per page

	Samples	Part Number	Architecture	Control Interface	Commutation	Motor Positioning Method	Supply Voltage Min (V)	Supply Voltage Max (V)	Package	Market	Part Composition / RoHS Data	Check Stock	ECAD
		A4915METTR-T	Gate Driver	PH/EN	Trapezoidal	Hall-Based	5.00	50.00	28-Pin QFN	Consumer, Industrial	View Data	Check Distributor Stock
		A4915MLPTR-T	Gate Driver	PH/EN	Trapezoidal	Hall-Based	5.00	50.00	28-Pin TSSOP	Consumer, Industrial	View Data	Check Distributor Stock

Part Number	Architecture	Control Interface	Commutation	Motor Positioning Method	Supply Voltage Min (V)	Supply Voltage Max (V)	Package	Market
A4915METTR-T	Gate Driver	PH/EN	Trapezoidal	Hall-Based	5.00	50.00	28-Pin QFN	ConsumerIndustrial
A4915MLPTR-T	Gate Driver	PH/EN	Trapezoidal	Hall-Based	5.00	50.00	28-Pin TSSOP	ConsumerIndustrial

A4915 Product Overview

The Allegro A4915 Three-Phase MOSFET Driver’s innovative speed input and fully integrated block commutation delivers simple speed control of a BLDC motor with a single analog voltage. Watch video to learn more.

Documentation and Resources

Documentation

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Documents Found: 3

Document Type	Document Name
Guide	A4915MET Evaluation Board User Guide
Technical Article	Hall-Based BLDC Gate Drive Saves Microprocessor IO and Provides Zero Speed Torque
Video	A4915 Demo Board Video