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.
Browse by category
BLDC Drivers
Drive your brushless DC motors with precision and efficiency using our advanced BLDC drivers, enabling smooth and powerful motion control.
Integrated Control BLDC Drivers
Simplify motor control with our integrated control BLDC drivers, offering intelligent algorithms for efficient and precise operation without complex external programming.
Documentation & Resources
Blog
The Unsung Hero of AI: Why Advanced Fan Drivers are a Data Centers Most Valuable Player
For data center operators, choosing a fan driver isn't a trivial component choice, it's a strategic decision that directly impacts efficiency, reliability, and the bottom line.
Technical Article
Racing to Meet the Challenges of Electrification
Governments around the world, including the European Union and the United States, have placed mandatory fuel economy standards on combustion engines to reduce emissions. These initiatives will require innovative advances in technologies, driving the demand for increased efficiencies.
Application Note
Pulse-Width Modulation (PWM) Example Code for A89211/12/24 New
The top-level architecture of the PWM module is shown in Figure 1. The clock frequency (fPWM) of this module is 80 MHz. The register settings are set by the AMBA high-performance bus (AHB).
Application Note
Doubler Charge-Pump Scheme for Gate Drivers in Automotive Applications New
AN296389 - This application note discusses the main advantages of the charge pump employed in the Allegro A89199 gate driver. Full operation of the doubler charge pump, requirements, and best practices for selection of both the pump and the storage capacitors are discussed.
Application Note
Advanced Negative Voltage Transient Test for Gate Drivers in Automotive Applications New
AN296385 - This application note investigates the sensitivity of the gate driver when exposed to transient negative voltage conditions using tests of the Allegro AMT49100 48 V gate driver.
Whitepaper
Revolutionizing eBike and Personal Mobility Motor Control with the A89212 System on Chip
Maximize eBike range and reliability with the A89212 SoC. Featuring a 90V range, ARM Cortex-M4 core, and -18V transient protection for robust, sensorless FOC motor control.
Whitepaper
AM099 - Silence, Efficiency and Intelligence in the Modern Home
The Allegro A89347G, a fully integrated, sensorless, sinusoidal BLDC motor driver, provides a robust solution specifically engineered to meet the demands of residential fans and pumps.
Guide
A89224 Evaluation Board User Guide
The A89224 evaluation board is a high-performance processor with integrated three-phase gate driver and precision current-sense capability.
Whitepaper
Why 48V is Revolutionizing Robotics
Robotics is evolving at an incredible pace, with industrial automation demanding more powerful and efficient machines. This shift is driving a significant change in the electronics that power them, moving away from traditional 12V systems towards higher operating voltages, particularly 48V.
Video
A4915 Demo Board Video
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.
Video
A4915 Product Overview Video
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.
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
A3921 Evaluation Board User Guide
The A3921 is a full-bridge controller for use with external N-channel power MOSFETs and is specifically designed for automotive applications with high-power inductive loads, such as brush DC motors.
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
AMT49400 Evaluation Board User Guide
The AMT49400 evaluation board is designed to aid system designers in evaluating the operation and performance of the AMT49400 integrated sensorless FOC BLDC driver IC.