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  Quality Standards and Environmental Certifications
 * English
 * 中文(中国)
 * 日本語 (日本)

 * Careers
 * Contact Us
 * Newsletter

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 * Products
    * Sense
    * Regulate
    * Drive
   
   
 * Applications
    * Automotive
    * Industrial
    * Energy and Infrastructure
    * Consumer
   
   
 * Design Support
    * Design and Development
    * Evaluation Kits and Demo Boards
    * Packaging
    * Quality and Environment
    * Software Portal

 * Resources
 * About Allegro
    * Our Company
    * Careers
    * ESG
    * DEI
    * Contact Us
   
   
 * Investors

 * Products
   
   * Products
     
     Sense
     
       
     * Sense
       
       Current Sensors
       
         
       * Current Sensors
         
         0 to 50 A
       * 0 to 400 A
       * Field Sensors 0 to >1000 A
         
     * Interface ICs
       
         
       * Interface ICs
         
         Sensor Interface ICs
         
     * Photonics
     * Position Sensors
       
         
       * Position Sensors
         
         1D Linear Position Sensors
       * 2D Angle Position Sensors
       * 3D Magnetic Position Sensors
         
     * Speed Sensors
       
         
       * Speed Sensors
         
         Camshaft Sensor ICs
       * Crankshaft Sensor ICs
       * Special Purpose and E-Motor Speed Sensor ICs
       * Transmission Sensor ICs
       * Wheel Speed Sensor ICs
         
     * Switches and Latches
       
         
       * Switches and Latches
         
         Hall-Effect Latches and Bipolar Switches
       * Dual Hall-Effect Latches
       * Two-Wire Hall-Effect Switches
       * Three-Wire Hall-Effect Switches
       * Micropower Hall-Effect Switches
       * Special-Purpose Devices
         
       
   * Regulate
     
       
     * Regulate
       
       ClearPower Modules
       
         
       * ClearPower Modules
         
         LED Driver Modules
       * Regulator Modules
         
     * LED Drivers
       
         
       * LED Drivers
         
         LED Drivers for Backlighting
       * LED Drivers for Lighting
         
     * Regulators
       
         
       * Regulators
         
         Multiple Output Regulators
       * Single Output Regulators
         
       
   * Drive
     
       
     * Drive
       
       BLDC Drivers
     * Brush DC Drivers
     * Isolated Gate Drivers
     * Stepper Motor Drivers
       
     
   * 
 * Applications
   
   * Applications
     
     Automotive
     
       
     * Automotive
       
       Hybrid and EV Solutions
     * Conventional Powertrain
     * Safety and ADAS
     * Comfort
       
   * Industrial
     
       
     * Industrial
       
       Building and Factory
     * Garden and Power Tools
     * Industrial Motor Control
     * Personal Mobility
       
   * Energy and Infrastructure
     
       
     * Energy and Infrastructure
       
       Charging Infrastructure
     * Datacenter
     * Solar Energy
     * Renewable Energy
       
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     * Consumer
       
       Computers and Printing
     * Gaming
     * Major Appliances
     * Residential HVAC
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 * Design Support
   
   * Design Support
     
     Design and Development
   * Evaluation Kits and Demo Boards
   * Packaging
   * Quality and Environment
   * Software Portal
     
   * 
 * Resources
     
   * Resources
     
     
 * About Allegro
   
   * About Allegro
     
     Our Company
     
       
     * Our Company
       
       What We Do
     * Our Leadership
     * Newsroom
       
   * Careers
     
       
     * Careers
       
       Current Openings
       
   * ESG
     
       
     * ESG
       
       Environmental Sustainability
     * Social Responsibility
     * Governance
       
   * DEI
     
       
     * DEI
       
       Diversity, Equity & Inclusion
       
   * Contact Us
     
       
     * Contact Us
       
       Our Locations
     * Sales and Distributors
     * Technical Assistance
       
     
   * 
 * Investors
     
   * Investors
     
     
 * English 中文(中国) 日本語 (日本)

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DRIVING CHANGE:

Advancing Personal Mobility Through Cutting-Edge Technology

Download Brochure

ALLEGRO'S FIRST ASIL C FIELD CURRENT SENSOR FOR E-MOBILITY

Providing highest accuracy and reliability for safety critical systems

Learn More

WANT TO MAKE YOUR DATA-CENTER FANS SAFER AND MORE EFFICIENT?

Allegro can help streamline your datacenter fan applications, reduce costs,
improve efficiency, and reduce the need for repairs.

Read Article


WHAT WE DO

SENSE
REGULATE
DRIVE


NEW PRODUCTS


ACS37601

The ACS37601 is the most advanced linear Hall-effect sensor IC for core-based
current sensing ever developed by Allegro.

Explore Now


APS12202 AND APS12212

Hall-effect latches are suited for operation over extended temperature ranges
(up to 150°C).

Learn More


APS11202

Hall-Effect Switch for Automotive, Consumer, and Industrial Applications

Learn More


A19351

AK Protocol GMR magnetic speed sensor automotive wheel speed, capable of large
air gaps and ultra low jitter, developed for ISO 26262 ASIL B(D)

Learn More


APPLICATIONS


AUTOMOTIVE

Safe. Reliable. Respected partner to OEMs around the world. See how this global
automotive leader can offer you a competitive edge.

Learn More


INDUSTRIAL

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

Learn More


ENERGY AND INFRASTRUCTURE

Our high-performance power and sensing solutions help you improve reliability,
safety, and energy efficiency in green energy applications and grid
infrastructure.

Learn More


CONSUMER

From gaming consoles to smart appliances to robotic vacuums—design reliable,
high performance consumer products with Allegro.

Learn More


APPLICATIONS


AUTOMOTIVE

Safe. Reliable. Respected partner to OEMs around the world. See how this global
automotive leader can offer you a competitive edge.

Learn More


INDUSTRIAL

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

Learn More


ENERGY AND INFRASTRUCTURE

Our high-performance power and sensing solutions help you improve reliability,
safety, and energy efficiency in green energy applications and grid
infrastructure.

Learn More


CONSUMER

From gaming consoles to smart appliances to robotic vacuums—design reliable,
high performance consumer products with Allegro.

Learn More


OUR TECHNOLOGY

Allegro has pioneered several major advances in the field of Hall-effect sensor
ICs and we are one of few IC manufacturers that directly integrate GMR
technology on top of our semiconductor wafers—improving reliability and
simplifying design.

Our new cutting-edge tunneling magnetoresistance (TMR) effect technology
combined with the company’s vertical Hall technology (VHT) offers designers
superior heterogeneous redundant sensor solutions that deliver industry-leading
accuracy for advanced levels of automation in the automotive and robotic
industries.

Learn more


OUR TECHNOLOGY

Allegro has pioneered several major advances in the field of Hall-effect sensor
ICs and we are one of few IC manufacturers that directly integrate GMR
technology on top of our semiconductor wafers—improving reliability and
simplifying design.

Our new cutting-edge tunneling magnetoresistance (TMR) effect technology
combined with the company’s vertical Hall technology (VHT) offers designers
superior heterogeneous redundant sensor solutions that deliver industry-leading
accuracy for advanced levels of automation in the automotive and robotic
industries.

Learn more


NEWS UPDATE

News

ALLEGRO MICROSYSTEMS ANNOUNCES INDUSTRY’S FIRST ASIL C SAFETY RATED FIELD
CURRENT SENSOR FOR ELECTRIC VEHICLE POWERTRAIN SYSTEMS

March 08, 2023

Allegro MicroSystems today announces the release of samples for the ACS37601, an
ASIL C safety rated, high-precision, field current sensor with best-in-class
accuracy for traction and auxiliary inverter systems.

Learn More

News

ALLEGRO MICROSYSTEMS RECEIVES THREE AUTO MANUFACTURER AWARDS FOR OUTSTANDING
CUSTOMER SUPPORT AND SUPPLY-CHAIN MANAGEMENT

January 30, 2023

Allegro Microsystems announced that it has received several automotive
manufacturer awards for its commitment to Customer Support and Supply-Chain
Management.

Learn More

News

POLAR SEMICONDUCTOR INVESTMENT AND EXPANSION

January 29, 2023

Today, Allegro announced that Polar Semiconductor (“Polar”), a company
jointly-owned by Allegro and Sanken Electric Co., Ltd. (“Sanken”), and one of
Allegro’s primary suppliers of 200 millimeter wafers, is expected to receive a
$150 million equity investment from an affiliate of One Equity Partners ...

Learn More

News

ALLEGRO MICROSYSTEMS ANNOUNCES OPENING OF NEW R&D CENTER IN GREATER DALLAS

January 27, 2023

Allegro Microsystems is proud to announce plans to open a new U.S.-based office
located in Richardson, Texas.

Learn More
‹›


Inspired to innovate, Allegro MicroSystems is redefining the future of sensing
and power semiconductor technologies.

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 * Products
   * Sense
   * Regulate
   * Drive
 * Applications
   * Automotive
   * Industrial
   * Energy and Infrastructure
   * Consumer
 * Design Support
   * Design and Development
   * Evaluation Kits and Demo Boards
   * Packaging
   * Quality and Environment
   * Software Portal
 * Resources
 * About Allegro
   * Our Company
   * Careers
   * ESG
   * DEI
   * Contact Us
 * Investors

 * Privacy Notice
 * Cookie Notice
 * Legal
 * UK Modern Slavery Act

© 2019-2023 Allegro MicroSystems, Inc. All Rights Reserved.
Also of Interest
 * About Allegro
 * Our Locations
 * Investing in Our People


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 * Products
   
 * Applications
   
 * Design Support
   
 * Resources
 * About Allegro
   
 * Investors
 * English 中文(中国) 日本語 (日本)

 * Products
   
   Sense
   
 * Regulate
   
 * Drive
   
   
 * 

   
 * Sense
   
   Current Sensors
   
 * Interface ICs
   
 * Photonics
 * Position Sensors
   
 * Speed Sensors
   
 * Switches and Latches
   
   

   
 * Current Sensors
   
   0 to 50 A
 * 0 to 400 A
 * Field Sensors 0 to >1000 A
   

   
 * Interface ICs
   
   Sensor Interface ICs
   

   
 * Position Sensors
   
   1D Linear Position Sensors
 * 2D Angle Position Sensors
 * 3D Magnetic Position Sensors
   

   
 * Speed Sensors
   
   Camshaft Sensor ICs
 * Crankshaft Sensor ICs
 * Special Purpose and E-Motor Speed Sensor ICs
 * Transmission Sensor ICs
 * Wheel Speed Sensor ICs
   

   
 * Switches and Latches
   
   Hall-Effect Latches and Bipolar Switches
 * Dual Hall-Effect Latches
 * Two-Wire Hall-Effect Switches
 * Three-Wire Hall-Effect Switches
 * Micropower Hall-Effect Switches
 * Special-Purpose Devices
   

   
 * Regulate
   
   ClearPower Modules
   
 * LED Drivers
   
 * Regulators
   
   

   
 * ClearPower Modules
   
   LED Driver Modules
 * Regulator Modules
   

   
 * LED Drivers
   
   LED Drivers for Backlighting
 * LED Drivers for Lighting
   

   
 * Regulators
   
   Multiple Output Regulators
 * Single Output Regulators
   

   
 * Drive
   
   BLDC Drivers
 * Brush DC Drivers
 * Isolated Gate Drivers
 * Stepper Motor Drivers
   

 * Applications
   
   Automotive
   
 * Industrial
   
 * Energy and Infrastructure
   
 * Consumer
   
   
 * 

   
 * Automotive
   
   Hybrid and EV Solutions
 * Conventional Powertrain
 * Safety and ADAS
 * Comfort
   

   
 * Industrial
   
   Building and Factory
 * Garden and Power Tools
 * Industrial Motor Control
 * Personal Mobility
   

   
 * Energy and Infrastructure
   
   Charging Infrastructure
 * Datacenter
 * Solar Energy
 * Renewable Energy
   

   
 * Consumer
   
   Computers and Printing
 * Gaming
 * Major Appliances
 * Residential HVAC
 * Small Appliances
   

 * Design Support
   
   Design and Development
 * Evaluation Kits and Demo Boards
 * Packaging
 * Quality and Environment
 * Software Portal
   
 * 

   
 * Resources
   
   

 * About Allegro
   
   Our Company
   
 * Careers
   
 * ESG
   
 * DEI
   
 * Contact Us
   
   
 * 

   
 * Our Company
   
   What We Do
 * Our Leadership
 * Newsroom
   

   
 * Careers
   
   Current Openings
   

   
 * ESG
   
   Environmental Sustainability
 * Social Responsibility
 * Governance
   

   
 * DEI
   
   Diversity, Equity & Inclusion
   

   
 * Contact Us
   
   Our Locations
 * Sales and Distributors
 * Technical Assistance
   

   
 * Investors