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Electric Power Steering

Did you know that Allegro ships over 100 million parts into EPS systems every year? From gate drivers, PMICs and current sensors to latches, linear and angle sensors—Allegro offers everything you need for your EPS but the microprocessor. 

OEMs around the globe trust our devices in these safety critical systems because of our demonstrated culture of quality control and safety. Allegro is a founding member of the US Technical Advisory Group for ISO 26262, and our ISO 26262 development process is certified by SGS-TUV Saar GmbH. We care about keeping your end consumer safe.
Electric power steering block diagram
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    Motor Phase Disconnect

    A6861 – Three-Phase Isolator MOSFET Driver

    A6862 – Three-Phase Isolator MOSFET Driver

    A81407 – Buck or Buck-Boost Pre-Regulator

    ARG82801 – Fully Integrated PMIC plus for 4x High Side Gate Drivers

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    Phase Current Sensing

    ACS72981 – 0 to 200 A Integrated Conductor Current Sensor

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    Motor Position Sensing

    AAS33001 – Dual Die CVH Angle Sensor

    AAS33051 – CVH Angle Sensor IC

     
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    Phase Current Sensing

    ACS72981 – 0 to 200 A Integrated Conductor Current Sensor

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    Phase Current Sensing

    ACS72981 – 0 to 200 A Integrated Conductor Current Sensor

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    BLDC Motor Driver

    A4911 – Three-Phase MOSFET Driver for 12 or 24V Systems

    A4916 – Three-Phase MOSFET Driver for 12 or 24V Systems

    A4918 – Three-Phase MOSFET Driver for 12 or 24V Systems

    AMT49106 and AMT49107 – 50V BLDC Gate Drivers with Low Voltage Operation

    AMT49100/1 – Three-Phase MOSFET Driver for 48V System

     
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    Handwheel Angle Sensor

    A33003 – CVH Angle Sensor

     
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    Handwheel Torque Sensor

    A31102 – Linear Hall IC with Advanced Diagnostics

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    System Power Conversion

    ARG81402 – Multi-Output Regulator with Buck Pre-Regulator

    A81407 – Buck or Buck-Boost Pre-Regulator

    ARG82801 – Fully Integrated PMIC plus for 4x High Side Gate Drivers

     
    Close

Featured Products

Allegro 48-Pin QFN EV Package

AMT49106 and AMT49107

50 V BLDC Gate Drivers with Low-Voltage Operation

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ARG81402 Product Image

ARG81402

Multi-Output Regulator with Buck Pre-Regulator, 5× LDO Outputs, Watchdog, and SPI

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ACS72981 Product Image

ACS72981

High-Precision Linear Hall-Effect-Based Current Sensor IC With 200 μΩ Current Conductor

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24-Pin-eTSSOP-with-exposed-thermal-pad-LP-Package

AAS33001

Precision Angle Sensor IC with Incremental and Motor Commutation Outputs and On-Chip Linearization

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Achieve and Exceed 20kHz Switching in Your EPS Motor with our High-Current Gate Drivers

  • ASIL-D Rated
  • Leading Transient Performance
  • Optimized Features & Footprint
Circular Vertical Hall Sensor Technology Video

Circular Vertical Hall Sensor IC Technology Overview

Published June 04, 2019

Allegro’s family of contactless Hall magnetic high resolution 360° angle sensor ICs are designed for safety critical automotive and industrial applications. With their system-on-chip (SoC) architectures, they provide fast output refresh rates and low signal path latency. Watch Video
on axis vs off axis video clip

On Axis vs. Off Axis Angle Sensor IC Measurement Configurations

Published April 09, 2019

Allegro’s family of contactless Hall magnetic high resolution 360° angle sensor ICs are designed for safety critical automotive and industrial applications. With their system-on-chip (SoC) architectures, they provide fast output refresh rates and low signal path latency. Watch Video

Documentation & Resources

Six Things to Consider When Building ADAS

Technical Article

Six Things to Consider When Building ADAS

Emerging trends in the automotive industry place greater demand on automakers to enhance automobiles’ safety and drivability. Discussed below are six ...

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Linearization and Two-Point Programming on the A31100 and A31102

Application Note

Linearization and Two-Point Programming on the A31100 and A31102

AN296213 - This application note highlights the procedure for calculating the magnetic field compensation parameters through two-point programming ...

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Estimating Maximum MOSFET Switching Frequency

Application Note

Estimating Maximum MOSFET Switching Frequency

AN296216 - This application note describes how to calculate the maximum power MOSFET switching frequency in BLDC motor gate drives.

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Allegro Motor Driving with Angular Sensor IC

Application Note

Allegro Motor Driving with Angular Sensor IC

AN296171 - This application note will describe how to use Allegro’s motor driver and angle sensor solutions to enable precise driving and reliable ...

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Guidelines for Using Allegro Angular Sensors

Application Note

Guidelines for Using Allegro Angular Sensors

Many applications in different industries, such as in industrial automation and automotive sensors and actuators, require monitoring the angle of a ...

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Ring Magnet Speed Sensing for Electronic Power Steering

Application Note

Ring Magnet Speed Sensing for Electronic Power Steering

Proper control of Electric Power Steering (EPS) systems requires both speed and direction information from the steering input shaft. This control ...

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How Hardware Selection Impacts Driver Experience in EPS Systems

Technical Article

How Hardware Selection Impacts Driver Experience in EPS Systems

P0234: Electric power steering systems have become popular in automotive manufacturing, displacing their mechanical counterparts because they save ...

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Allegro TMR: A Cutting-Edge Sensing Solution for Driving Automation and ADAS

Technical Article

Allegro TMR: A Cutting-Edge Sensing Solution for Driving Automation and ADAS

P0225: As vehicle electrification has increased over the years in the automotive industry, standards such as SAE J3016TM have established levels of ...

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