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

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

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

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)

Uncover the latest trends in microgrid technology and its potential to reshape the energy landscape with our recent whitepaper. (read more)

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

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)

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

Integrated power loss brake features lower energy consumption and reduce costs in data center fan applications. (read more)

Modern Motor Drivers Enable a Common Platform for Power Tool Designs

In today’s diverse power tool market, the wide range of battery voltages and torque requirements often result in designs that use different platforms that support a limited range of products. Significant time and cost could be cut from research and development schedules if a single industry-wide platform we... (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)

A31316: 3D PCB-less Hall-Effect Sensor for Rotary and Linear Measurement

The A31316 is a robust, fully integrated 3DMAG™ Hall-effect magnetic position sensor IC designed to support a wide range of non-contact rotary and linear position measurement in the automotive, industrial and consumer applications.

The A31316 is available in a PCB-less SIP package with an integra... (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)

APM81803: 40 V, 3 A, Synchronous Buck Regulator Module with Low EMI and 6 μA Quiescent Current

The APM81803 is a highly integrated, 3A, low EMI, DC-DC regulator module that satisfies demanding power delivery requirements. Allegro's innovative packaging technology allows for the integration of the converter along with EMI capacitors to offer a power supply that will meet... (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)

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)

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)

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

Self-Powered Single-Channel Isolated GaNFET Driver with Regulated Bipolar Output Drive

The AHV85111 isolated gate driver is optimized for driving GaN FETs in multiple applications. An isolated dual positive/ negative output bias supply is integrated into the driver device, eliminating external gate drive auxiliary bias supply or high-side bootstrap. The bipolar output rails with a... (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)

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)

A33110: Precision TMR Angle Sensor with Integrated Diagnostics

The A33110 is a 360° angle sensor ICs that provide contactless high-resolution angular position information based on magnetic sensing that combines TMR (Tunneling MagnetoResistance) and VH (Vertical Hall) technologies.

The device is a system-on-chip (SoC) architecture that includes two independent ang... (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)

Constant On-Time Buck Converter With Integrated Linear Regulator

The A4402 is a dual-output regulator, combining in a single package a constant on-time buck regulator and a linear regulator (LDO)—each with adjustable output voltages. It is ideal for applications that require two regulated voltages, such as in microcontroller- or DSP-based applications requiring core a... (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)

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)

New drivers enable fewer external components and smaller footprints while improving performance.

Allegro MicroSystems has released two new full-bridge gate drivers for automotive and industrial applications. (read more)

As vehicle technology continues to advance and car design trends shift to hybrid and fully electric vehicles, autonomous driving and power-hungry comfort and entertainment systems, one thing hasn’t changed — the need for safe, reliable and proven technology.
At Allegro, we design for automotive, with a zero defect culture, a safety mindset and a track record of innovatio... (read more)

Allegro’s eye-safe SWIR photoreceivers and lasers go the distance, enabling long range object detection beyond 200 meters. (read more)

Allegro MicroSystems, a global leader in power and sensing solutions for motion control and energy-efficient systems, today announced the release of two new state-of-the-art giant magnetoresistance (GMR) crankshaft and camshaft sensors. (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)

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)

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)

Two-Wire Hall-Effect Switches

OEMs and tier one providers choose from our broad portfolio of two-wire sensors for applications like seat belt buckles, seat track and occupant sensor.
You can trust our safety and performance, too. Allegro Hall switches offer ISO 26262 compliance for automotive safety systems, industry-leading ESD and EMC performance, as well as 4× chopp... (read more)

Drive Innovation with Safe, Robust and Reliable Motor Drive Solutions

Allegro motor drivers offer industry-leading robustness and safety, thriving in harsh, high voltage environments where competing parts fail.
But while our drivers are tough, they're also quiet. We are experts in helping our customers make their motors run more quietly, efficiently and reliably in aut... (read more)

Allegro Current Sensors

We’ve been driving innovation in the current sensor industry since 2002, with a history of first-to-market products that give our customers a competitive edge. Our advanced ICs help you achieve higher efficiency and power density in your designs. Our fully integrated solutions make design-in easy.

We're leading the market in main traction motor... (read more)

New device keeps batteries and HVAC systems running quiet and cool

Allegro MicroSystems, a global leader in power and sensing solutions for motion control and energy efficient systems, is expanding its QuietMotion™ product line with the introduction of the new A89307 automotive-qualified gate driver integrated circuit (IC). Designed for battery cooling fans and... (read more)

New Allegro LED Drivers Bring High-End Lighting Technology to Mainstream Vehicles, Enhancing Automotive Safety

Innovative ICs can be used standalone or integrated into ADAS solutions

Allegro MicroSystems, Inc. has expanded its automotive lighting portfolio to include two new offerings for advanced driver assistance system (ADAS) applications. A unique solution in the market... (read more)