Brushless DC Drivers
QuietMotion™ - precision motor control for whisper-quiet performance.
Allegro’s brushless DC motor drivers combine decades of motion control expertise with advanced integration to accelerate development and performance. Supporting up to100 V systems, our portfolio includes integrated or external gate driver ICs tailored for automotive, industrial, and consumer applications. With ISO 26262-compliant options, embedded QuietMotion™ algorithms, and industry-leading ASIL D support, we deliver compact, precise, and safety-ready solutions for high-efficiency motor control.
Documentation & Resources
Application Note
AMT49100 Start-Up Sequence
This application note is intended to provide user guidelines for the recommended power-up sequence to ensure a robust and reliable start-up when using the Allegro AMT49100 gate driver.
Whitepaper
Power Smarter Tools with the A89212 SoC
Discover how Allegro’s A89212 Motor Control SoC enables faster, more efficient cordless tool designs—across drills, saws, e-bikes, and more.
Guide
A4955 Evaluation Board User Guide
This evaluation board is used to demonstrate the Allegro A4955GES full-bridge PWM gate driver IC.
Guide
A4950 Evaluation Board User Guide
This evaluation board is used to demonstrate the Allegro A4950xLJ full-bridge DMOS PWM motor driver IC.
Guide
A5931 Evaluation Board User Guide
This evaluation board is used to demonstrate the Allegro A5931GES three-phase sensorless fan driver IC.
Guide
APEK89211 and APEK89212 Evaluation Board User Guide
The A89211 or A89212 (A89211/2) evaluation board is a high performance processor with integrated three-phase gate driver and precision current-sense capability.
Guide
AMT4952 Evaluation Board User Guide
The AMT49502 evaluation board is designed to aid system designers with evaluating the operation and performance of the Allegro AMT49502 48 V safety automotive, half-bridge MOSFET driver.
Guide
A4919 Evaluation Board User Guide
This board provides the basic components required to use the A4919 to drive a motor. The motor can be controlled via an externally supplied PWM signal input on the logic input terminals.
Guide
A4988 Evaluation Board User Guide
This evaluation board is used to demonstrate the Allegro A4988SET DMOS microstepping driver with translator motor driver IC.
Guide
A3941 Evaluation Board User Guide
The A3941 is a full-bridge controller for use with external N-Channel power MOSFETs designed for automotive applications with high-power inductive loads like brush DC motors.
Guide
A89333 Evaluation Board User Manual
This user manual describes how to use the EVB and how to set the algorithms and underlying features that make this device suited for different scenario and suitable for many motors.
Application Note
Key Considerations in Design of Sensorless Three-Phase BLDC Motor Driver for Automotive Fuel Pumps
This application note provides details the A89303 device in an automotive fuel pump application. Detailed information about the sensorless control in A89303, advantages of the device, speed control techniques, parameter configuration including efficacy and thermal calculation, EMI consideration, and layout guidelines are presented.
Guide
A89332-3 Evaluation Board User Guide
The A89332-3 evaluation board is designed to aid users in evaluating the operation and performance of the A89332-3 motor-controller integrated circuit (IC).
Application Note
AN296298 - Smart Relay Common Source Application Board
The A89103 is an N-channel power MOSFET driver capable of both supply and phase isolation. An application board has been developed to replicate the behavior of in-circuit operation.
Guide
A5947GET Evaluation Board User Guide
This evaluation board is used to demonstrate the Allegro A5947GET three-phase sensorless fan driver IC.