3-Phase MOSFET Driver with Synchronous Rectification and PWM Control

A4915

Markets Served

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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Evaluation Board

Product Details

Top Features

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

Target Application

Part Number Specifications and Availability

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A4915METTR-T

supply_voltage_min_v: 5
supply_voltage_max_v: 50
architecture: Gate Driver
control_interface: PH/EN
rds_on: Pre-Driver
commutation: Trapezoidal
motor_positioning_method: Hall-Based
sleep_current: 1
current_sense_amplifiers: 0
number_of_bridges: Half-Bridge x3
temperature: -40°C to 105°C
package: 28-Pin QFN, 28-Pin TSSOP
market: Industrial

A4915MLPTR-T

supply_voltage_min_v: 5
supply_voltage_max_v: 50
architecture: Gate Driver
control_interface: PH/EN
rds_on: Pre-Driver
commutation: Trapezoidal
motor_positioning_method: Hall-Based
sleep_current: 1
current_sense_amplifiers: 0
number_of_bridges: Half-Bridge x3
temperature: -40°C to 105°C
package: 28-Pin QFN, 28-Pin TSSOP
market: Industrial

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.

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