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Hybrid and Electric Vehicle Systems

We believe the future is electric – and we know vehicle electrification requires innovative solutions. We’re ready for the rEVolution with smaller, lighter, and more efficient power and sensor semiconductors. You’ll be able to pack in the features your customers want while still meeting your miles per charge goals. 

Let’s design your EV systems together. Check out our broad family of automotive-grade devices for battery monitoring, on-board chargers, DC-DC converters, starter generators, and more. 

We offer benefits like superior safety for ADAS and autonomous vehicles, including ISO 26262 certification; high levels of integration for redundancy and heterogenous diversity; current sensors that maximize power density; and market-leading, low noise sensors and robust motor drivers that reduce undesired noise in electric motors.

Electric Vehicle
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    Thermal Management

    Say bye to belt-driven cooling. Electrify your engine cooling system with our power ICs, designed with decades of expertise. 


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    Battery Management System

    Design robust and reliable battery management systems with functional safety in mind. Achieve ASIL ratings while obtaining highly accurate battery current measurements.


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    Power Distribution Unit

    Design robust and reliable battery management systems with functional safety in mind. Achieve ASIL ratings while obtaining highly accurate battery current measurements.


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    Thermal Management

    Say bye to belt-driven cooling. Electrify your engine cooling system with our power ICs, designed with decades of expertise. 


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    DC/DC Converter

    You have high hopes for your high-side applications. Our products help you achieve higher frequency, isolation, and level of integration, enabling your compact designs.


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    High Voltage Inverters and Traction Motors

    Want it all? Achieve precise torque, maximum power, and high inverter efficiency all in a tiny footprint.


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    PTC Heater

    Don’t sweat it. Eliminate the risk of overheating and improve passenger comfort and safety in 48V systems. 


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    Integrated Belt Starter Generator

    Engineer the future of 48V mild-hybrid systems. Keep your battery charged and current flowing with cutting-edge products for all your starter generator applications.


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    EV Transmission

    Alleviate consumer range anxiety and design electrified powertrains that achieve maximum motor power and performance.


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    High Voltage Inverters and Traction Motors

    Want it all? Achieve precise torque, maximum power, and high inverter efficiency all in a tiny footprint.


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    On-Board Charger

    Charge ahead with the fastest solutions in the industry all while making your on-board chargers safer, more efficient, and more reliable. 


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Applications

On-Board Chargers

Meet consumer demands for high-speed charging in electric vehicles.

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Inverter Systems and Traction Motors

Achieve precise torque, maximum power, and high inverter efficiency all in a tiny footprint

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DC-DC Converters

Achieve higher frequency, isolation, and level of integration in high-side applications with our gate drivers, current sensors and regulators

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Starter Generator / eMotor

Keep your battery charged and current flowing with Allegro’s power and sensing solutions.

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Cooling Systems

Keep your battery and inverter systems running cool and quiet with our power ICs

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e-Turbo Supercharger

Address demands for EV applications requiring high speed, power, and temperatures

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Engine Cooling Fans, Pumps & Compressors​

Achieve system efficiencies and reduce your system’s footprint with our optimized motor control architecture and low loss current sensing technology.

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EV Transmissions

Design electrified powertrains that achieve maximum motor power and efficiency.

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PTC Heaters

Eliminate the risk of overheating and improve passenger comfort and safety in 48V systems

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Battery Management Systems

Achieve highly accurate current measurement with our industry leading current sensor ICs

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Largest selection of 48V Automotive Grade 0 Gate Drivers

At Allegro, we know vehicle electrification and emission controls require innovative solutions for a 48V bus. That’s why we offer the most extensive portfolio of grade-0 48V solutions that reduce environmental impact in mild hybrid engines. Our robust and system optimized family of 48V products are designed for safety, including architectures for BLDC, DC motors and half-bridge with independent high-side and low-side outputs.

And, we’ve expanded our industry-leading motor driver portfolio with a new family of 48V ready devices on an ISO26262 compliant design process.

View our Safety Motor Drivers

48V Battery Systems Application Diagram
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    PMIC

    ARG82801 –  PMIC plus for 4x High Side Gate Drivers
    ARG81402 –  Multi-Output Regulator with 5x LDO outputs     Close
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    3 Phase Gate Driver

    AMT49100-AMT49101 – BLDC MOSFET Gate Driver Close
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    Half Bridge Gate Driver

    A89500 – 100V Half-Bridge Gate Driver
    AMT49502 – 5.5V - 80V Half-Bridge Gate Driver
    A89503 – Gate Driver for Series Loads     Close
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    Current Sensors

    ACS37612 – Coreless Current Sensor
    ACS70310/1 – Core-Based Current Sensor     Close
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    Current Sensors

    ACS37612 – Coreless Current Sensor
    ACS70310/1 – Core-Based Current Sensor     Close
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    Current Sensors

    ACS72981 – Hall Current Sensor With 200 μΩ Current Conductor
    ACS772 – 200KHz Current Sensor (5V supply)
    ACS773 – 200KHz Current Sensor (3.3V supply) Close
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    Hall Latch

    APS122x0 – High-Temperature Hall-Effect Latches
    APS122x5 – Hall-Effect Latches for Low Voltage Applications     Close
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    Hall Latch

    APS122x0 – High-Temperature Hall-Effect Latches
    APS122x5 – Hall-Effect Latches for Low Voltage Applications     Close
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    Hall Latch

    APS122x0 – High-Temperature Hall-Effect Latches
    APS122x5 – Hall-Effect Latches for Low Voltage Applications     Close
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    Angle Sensor

    APS12626 – Low Voltage Hall-Effect Latch
    A1333  –  Contactless 0° to 360° angle sensor
    AAS33001 – Angle Sensor with On-Chip Linearization     Close
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    Current Sensors

    ACS37612 – Coreless Current Sensor
    ACS70310/1 – Core-Based Current Sensor     Close
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    Current Sensor

    ACS37612 – Coreless Current Sensor
    ACS70310/1 – Core-Based Current Sensor
    ACS772 – 200KHz Current Sensor (5V supply)
    ACS773 – 200KHz Current Sensor (3.3V supply)

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Featured Motor Drivers

Allegero 48 Pin LQFP with exposed thermal pad JP Package

AMT49100/AMT49101

ASIL BLDC MOSFET Gate Drivers for 48V Battery Systems

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10-contact DFN EJ Package

A89500

100V Fast Switching Half Bridge MOSFET Driver

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

A89503

5.5V - 80V ASIL Half-Bridge MOSFET Gate Drive

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Size Matters

Allegro’s compact current sensor solutions allow for reduction of size in inverters, reducing vehicle weight, number of components within the system (reducing BOM for the customer) and ensure high power density, increasing efficiency overall. 

We offer core-based and coreless Current Sensing IC solutions that are high-bandwidth efficient, user-programmable, and equipped with safety features such as self-checks and isolation capabilities that make them ideal for use in Inverters for electric vehicle applications.

View Our Current Sensors

Featured Current Sensors

8-Pin-TSSOP-LU-Package, used in the ACS37612 coreless differential current sensor IC

ACS37612

The ACS37612 is a standalone Hall-based coreless differential current sensor that measures currents from 200A to >1000A without requiring a magnetic concentrator core or a shield.

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KT Package

ACS70310/ACS70311

240kHz, Highest Accuracy Programmable Linear Sensor with Reverse Battery Protection

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Allegro's MA-LA-MC Packages

ACS37002

400 kHz, High Accuracy Current Sensor with Pin-Selectable Gains

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Documentation & Resources

Design Considerations in Selection of Converter Configuration for Automotive LED Headlight Applications

Application Note

Design Considerations in Selection of Converter Configuration for Automotive LED Headlight Applications

This application note discusses LED headlights for two-wheelers, passenger vehicles, commercial vehicles, and mild hybrid vehicles, and explores ...

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Angle Error Correction with the A33230

Application Note

Angle Error Correction with the A33230

This application note describes the mathematics to convert the analog sine/cosine outputs of the A33230 into an angular position.

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Brochure: Driving Change by Advancing Personal Mobility Through Cutting-Edge Technology

Brochure

Brochure: Driving Change by Advancing Personal Mobility Through Cutting-Edge Technology

Our advanced sensor and power IC solutions are engineered specifically to meet the unique requirements of these designs, providing superior ...

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Brochure: Innovative Solutions for Vehicle Electrification

Brochure

Brochure: Innovative Solutions for Vehicle Electrification

From high-voltage (HV) inverters and traction motors, to HV converters and transmissions, to on-board chargers (and beyond), our portfolio includes a ...

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AMT49100 & AMT49101: How to Enable / Disable the Buck Regulator

Application Note

AMT49100 & AMT49101: How to Enable / Disable the Buck Regulator

AN296217 - This application note describes how to switch between buck enabled and buck disabled operation on any variant of the AMT49100 or AMT49101 ...

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Rethink PCB Current Sensing

Technical Article

Rethink PCB Current Sensing

This article will discuss two new innovative approaches to measure currents up to 600 A in PCB: a near-lossless Hall-based current sensor with an ...

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Allegro Product Selection Guide

Selection Guide

Allegro Product Selection Guide

Sense. Regulate. Drive. Check out our device offerings and packages across all of our product families in this PDF selection guide.

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Racing to Meet the Challenges of Electrification

Technical Article

Racing to Meet the Challenges of Electrification

October 13, 2020

Governments around the world, including the European Union and the United States, have placed mandatory fuel economy standards on combustion engines ...

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Common Driver Platform for 12V and 48V Systems Simplifies EV Starter Generator Designs

Technical Article

Common Driver Platform for 12V and 48V Systems Simplifies EV Starter Generator Designs

This article discusses how using a common platform for both 12V and 48V starter generator systems will simplify and ease the transition to 48V ...

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System-Level Application Considerations for Magnetic Speed Sensors

Application Note

System-Level Application Considerations for Magnetic Speed Sensors

AN296266 - The use of a noncontact, active, speed sensor integrated circuit (IC) greatly simplifies system design-in of a magnetic speed sensor. ...

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Brochure: State-Of-The-Art Back-Biased GMR Speed Sensing

Brochure

Brochure: State-Of-The-Art Back-Biased GMR Speed Sensing

Allegro pioneers the first back-biased GMR Sensor with 50% larger air gaps. This larger air gap operation enables smaller and lighter transmissions ...

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Notched Busbar Design Guidelines For Coreless ACS37610 Differential Current Sensor

Application Note

Notched Busbar Design Guidelines For Coreless ACS37610 Differential Current Sensor

AN296231 - This application note focuses on how a busbar should be designed to achieve optimum performance with the ACS37610 coreless current sensor.

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Motor Drive Discrete MOSFET Bridge Circuit Design and Layout

Application Note

Motor Drive Discrete MOSFET Bridge Circuit Design and Layout

AN296215 - This application note is intended to familiarize the reader with bridge circuit switching for motor drive applications. Recommendations ...

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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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Brochure: Current Sensing for Vehicle Electrification

Brochure

Brochure: Current Sensing for Vehicle Electrification

Charge into the future of vehicle electrification with the world's #1 supplier of current sensor ICs for leading EV applications.

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