Our expanded Power-Thru™ gate driver family, now including the new AHV85003/AHV85043, delivers the industry’s first complete portfolio of self-powered, noise-eliminating isolated gate drivers.
- No external bias supply
- Up to 15x lower common-mode capacitance
- Up to 20 dB better EMI performance
- Smaller footprint. Lower BOM. Higher power density. (read more)

The 50 µΩ ACS37200 slashes power loss by 90% and shrinks system size by up to 95% in demanding HEV/EV, industrial, and data center applications.

From Wasted Heat to More Power

In a high-current system, every milliohm of resistance matters. A typical 100A design using a 0.5mΩ shunt resistor can waste up to 5 watts of power as pure heat, requiring cos... (read more)

Precision in Motion: Advanced Sensing for Industrial Control

In the world of industrial automation, precision and reliability are not just goals; they are absolute necessities. Whether it's a multi-axis robotic arm, a smart valve, or a complex human-machine interface (HMI), the ability to accurately and dependably track motion and position is critical. Engineers often face the cha... (read more)

The Unsung Hero of AI: Why Advanced Fan Drivers are a Data Center's Most Valuable Player

The world is being reshaped by Artificial Intelligence. From generative AI creating art to complex algorithms powering autonomous vehicles, the computational demand is exploding. This explosion has a very real, very hot byproduct: heat. Inside the sprawling data centers that form the backbone... (read more)

High-Accuracy, 750 kHz Current Sensor IC with Reference Output

The ACS37017 is a high-accuracy Hall-effect current sensor IC engineered for precise measurements in high-speed applications. Its 750 kHz bandwidth is ideal for fast control loops, while the performance compensation and differential sensing architecture provides superior immunity to external magnetic fields, ensuring r... (read more)

Want to maximize efficiency and boost power density in your next design? Traditional current sensing can’t keep up with GaN and SiC—and that limits system performance.

Our on-demand webinar reveals how next-generation high-speed magnetic sensors let you:
- Confidently control faster systems
- Maximize efficiency
- Increase power density (read more)

Precision that drivers can feel. Allegro's A17803 angle sensor delivers the accuracy and safety compliance needed for superior steering control.

Learn More (read more)

How Does XtremeSense™ TMR Technology Enable Efficient Applications

In today’s semiconductor industry, we assuredly notice a growing demand for enhanced efficiency across various industrial and automotive sectors, prompting significant shifts in design considerations, particularly regarding current sensing requirements. If you’re reading this, you’re very li... (read more)

The electric vehicle revolution is here, but are we ready to power it? Consumers are eager to embrace electric vehicles, but concerns about charging time, cost, and infrastructure remain major roadblocks to widespread adoption. Learn how Allegro is shaping the future of EV charging and partnering with manufacturers to accelerate the transition to a sustainable electric future.

Thi... (read more)

Safety at every speed. Allegro's A19360 wheel speed sensor delivers precise measurements for advanced braking and ADAS features in any environment. (read more)

The automotive industry is undergoing a seismic shift, and it's not just about electric drivetrains or autonomous features. The real revolution is happening under the hood—literally—with the adoption of zonal architectures and 48V systems. This is a necessary evolution—today’s EVs, hybrids, and advanced internal combustion vehicles draw more electrical power than... (read more)

Isolation without compromise. Allegro's ACS772 current sensor combines superior safety and fast response for high-voltage EV power systems.

Learn More (read more)

Allegro MicroSystems Expands Motor Control and Thermal Management Solutions to Capitalize on growing e-Mobility and Automation Markets

New current sensors and fan driver ICs deliver improved performance and energy efficiency for automotive and industrial applications

“Our latest motor control and thermal management solutions reflect Allegro’s commitment to deliv... (read more)

Allegro MicroSystems: Revolutionizing Clean Energy Generation, Distribution and Storage with New XtremeSense™ TMR Current Sensors

New TMR current sensors deliver stable and lossless current measurements with superior electrical noise immunity in compact designs

“Allegro's new XtremeSense TMR current sensors set an industry standard for low-noise magnetic current... (read more)

Livebench is a real time, remote platform that allows engineers to quickly evaluate power and sensor products without costly hardware and set up time. Get started evaluating components within minutes. (read more)

We can sense it. We can move it. Our complete portfolio of products enables intelligent motion in your industrial applications.

Learn More (read more)

Introducing Allegro MicroSystems’ XtremeSense^TM TMR Technology

XtremeSense TMR Technology is a cutting-edge solution offering distinct advantages over conventional magnetic sensors. Ideal for high-precision and high-current applications like clean energy, xEV, industrial and consumer.

Tunnel Magnetoresistance (TMR) offers inherent advantages:

...

New Sensor Solutions Improve Design Efficiency and Reliability with Enhanced Protection (read more)

Self-Powered Single-Channel Isolated GaN FET Gate Driver with Power-Thru Integrated Isolated Bias Supply (read more)

Driving Innovation: How GHSP and Allegro MicroSystems are Shaping the Future of Electric Vehicles (read more)

A comprehensive guide to energy efficiency and renewable energy.

Over the last few decades, there have been significant advancements in the development of clean energy systems and energy harvesting. Download the e-book today and learn about:

• Cutting-edge clean energy solutions, including solar, wind, energy storage, heat pumps, and electric vehicle (EV)...

Increased Efficiency, with Flexibility and Scalability

Our holistic solutions enable more flexible and scalable EV thermal management systems with low noise and precise control, while improving energy efficiency.

We believe the future is electric – and we know vehicle electrification requires innovative solutions. We’re ready for the rEVolution with small... (read more)

Allegro’s XtremeSense™ TMR technology (Tunnel Magnetoresistance) provides the highest magnetic sensitivity, the lowest power consumption, and the smallest size by comparison to other magnetic technologies such as Hall, AMR, and GMR. Accelerating various applications from renewable energy systems, xEV, and connected consumer devices, Allegro’s XtremeSense TMR technology... (read more)

Harnessing Technology for a Sustainable Future

Sensor integrated circuits (ICs) are revolutionizing the world of clean energy. These powerful devices play a crucial role in every stage of the clean energy cycle, from creation to consumption. Explore the fascinating ways sensor ICs are shaping our clean energy landscape and paving the way for a more sustainable future.

Learn... (read more)

Allegro provides holistic solutions to enable more flexible and scalable EV thermal management systems with low noise and precise control, while improving energy efficiency.

Download brochure (read more)

A Perfect Example of Less is More (read more)

Self-Powered Single-Channel Isolated GaNFET Gate Driver with Power-Thru Integrated Isolated Bias Supply

The AHV85110 isolated gate driver is optimized for driving GaNFETs in multiple applications and topologies. An isolated output bias supply is integrated into the driver device, eliminating the need for any external gate drive auxiliary bias supply or high-side bootstrap. This gr... (read more)

Magnetic current sensors are replacing sense resistors and current transformers

Modern cars have become increasingly power hungry. Even the "least electrified" vehicles include advanced electronics for infotainment, safety, and engine control. Fully electric vehicles further add high-voltage power domains to charge and drive. Each of these systems shares the need for power monitor... (read more)

The AHV85000 and AHV85040 is a dual chipset that offers a flexible isolated gate drive for GaN FETs with the benefits of Power-Thru technology. This simplifies system design, reduces EMI, and supports driving a floating switch in various power applications. (read more)

Hall-Based BLDC Gate Drive Saves Microprocessor IO and Provides Zero Speed Torque

SENSORS IN BLDC MOTORS

Many BLDC motor applications require Hall-based position sensing to accommodate direction changes quickly and provide holding torque. For example, a robotic lawnmower, ebike, or personal mobility device must be able to stop on an incline but must not roll backwards. Anot... (read more)

Self-Powered Single-Channel Isolated GaNFET Driver with Power-Thru Integrated Isolated Bias Supply

The AHV85110 isolated gate driver is optimized for driving GaNFETs in multiple applications and topologies. An isolated output bias supply is integrated into the driver device, eliminating the need for any external gate drive auxiliary bias supply or high-side bootstrap. This greatly... (read more)

Tiny Package, Superior Performance

Allegro Announces Industry’s Smallest 3D Sine/Cosine Position Sensor

The A33230 is the smallest 3D sine/cosine sensor currently available in the market, and offers system designers a cost-effective solution for automotive and industrial applications with a quick time to market. (read more)

Allegro has been driving innovation in the current sensor industry since 2002, with a history of first-to-market products that give their customers a competitive edge. (read more)

New devices improve thermal efficiency, reducing energy use and data center costs

Allegro MicroSystems, Inc. announced it has expanded its portfolio of three-phase sensorless BLDC gate drivers. Its newest offerings, the A89332 and A89332-1, are designed to meet the evolving needs of cooling systems in today’s data centers offering flexible options for designers. Avail... (read more)

A4992: Automotive Stepper Driver

The A4992 is a flexible microstepping motor driver with integrated phase current control and a built-in translator for easy operation. It is a single chip solution designed to operate bipolar stepper motors in full, half, quarter, eighth, and sixteenth step modes, at up to 28 V. At power-on the A4992 is configured to drive most small stepper motors... (read more)

Pressure Sensor Interface with Polynomial Compensation and Diagnostics

The A17700 is a sensor interface IC designed to interface piezo resistive bridge for pressure sensing. It offers high accuracy output in Analog, PWM and SENT format with diagnostic. While analog output is used for legacy designs, PWM and unique FAST SENT output protocols support new application requireme... (read more)

Designed for advanced driver assistance systems (ADAS) applications that require high levels of accuracy and heterogeneous signal redundancy, Allegro’s newest sensors combine the company’s vertical Hall technology (VHT) with cutting-edge tunneling magnetoresistance (TMR) technology in a single sensor package. These groundbreaking angle sensors are the first of their kind to f... (read more)

Sensorless and Always Without Reverse Rotation: Rapid and Accurate Startup for Blower Fan Motors (read more)

Smoothing The Way To Vehicle Autonomy: Essential Hardware Components At Level 3 And Higher

In the grand scheme of advanced driver assistance systems (ADAS) and autonomous implementation, replacing a driver requires many hardware and software considerations, not only in sensing technology and processing, but also in electromechanical systems to steer and brake the vehicle. The ADAS... (read more)

Introduction

Cost, design time, and unexpected results: These are three of the most significant challenges that weigh on the minds of project managers who are involved with the design of power modules. Whether for use in electric vehicle charging stations, clean energy, variable speed drives, IT equipment power supplies, or any of the hundreds of other applications, modern... (read more)

A19351: High-Performance GMR AK Protocol Wheel Speed and Direction Sensor IC

The A19351 is a giant magnetoresistance (GMR) magnetic sensor integrated circuit (IC) designed to measure ring magnets, especially for automotive wheel speed and direction applications. The IC fully integrates sensing elements, voltage regulators, analog-to-digital converters, and a digital control... (read more)

Allegro Announces First-to-Market High-Resolution GMR Wheel Speed and Distance Sensor for ADAS Applications

The cutting-edge giant magnetoresistance (GMR) sensor provides automakers with the signal resolution and reliability required for advanced levels of automation in passenger vehicles and mobility-as-a-service applications. (read more)

Allegro MicroSystems Announces PCB-Less 3D Magnetic Sensor for Vehicle Safety and ADAS Applications

Robust A31316 IC enables flexible integration for precision contactless position sensing

Allegro MicroSystems, Inc. (“Allegro”) (Nasdaq: ALGM), a global leader in sensing and power solutions for motion control and energy-efficient systems, today announced the A313... (read more)

Allegro MicroSystems Announces Industry’s First ASIL C Safety Rated Field Current Sensor for Electric Vehicle Powertrain Systems

Samples now available for the ACS37601, an ASIL C safety rated, high-precision, field current sensor with best-in-class accuracy for traction and auxiliary inverter systems as well as battery management systems (BMS) in electric vehicles (EVs).

Samples Are Available Now to Support Designers in Achieving New Safety and Efficiency Standards (read more)

When designing a product portfolio with a wide range of voltage and power requirements, the A89500 from Allegro MicroSystems is a simple and robust driver solution. (read more)

Brakes are some of the most crucial safety components in automobiles. Used to slow a vehicle’s momentum before parking and avoid collisions and accidents, braking systems have undergone rapid development throughout the years. Automobile brakes have evolved from the mechanical drum brakes of the early 19th century to hydraulic brakes, disc brakes, and recently, electronic braking sy... (read more)

Self-Powered Single-Channel Isolated GaNFET Gate Driver with Power-Thru Integrated Isolated Bias Supply (read more)