xEV Powertrains

Powering the Future of Electrification

Electric vehicles demand compact, efficient, and safe solutions—and Allegro delivers. Our technologies support key systems like battery management, on-board charging, DC-DC conversion, and traction inverters. We offer high-accuracy current sensors, high-voltage gate drivers, automotive PMICs, and precise position sensors, all designed for ISO 26262 compliance, best-in-class thermal performance, and easy system integration.

System diagram showing Allegro sensor and power IC applications in a modern electrified vehicle powertrain
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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

    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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    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 Traction Inverter

    Maximize efficiency and performance in hybrid vehicles with Allegro's power and sensing solutions. 


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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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    Hybrid Systems

    Maximize efficiency and performance in hybrid vehicles with Allegro's power and sensing solutions. 


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Browse by application

EV battery pack

Battery Management and Disconnect

Ensure safe, reliable operation with Allegro’s industry-leading current sensors and gate drivers for battery management and battery disconnect systems.
DC-DC converters callout image

DC-DC Converters

Allegro’s gate drivers, current sensors, and regulators enable high-frequency, isolated power conversion with greater control and integration.
High voltage traction inverter and motor

High Voltage Traction Inverter

Deliver precise torque and maximum power with Allegro’s compact, high-efficiency power and sensing solutions for traction inverter systems.
Hybrid System

Hybrid Systems

Maximize efficiency and performance in hybrid vehicles with Allegro’s power and sensing solutions.
electric vehicle charging on station fueled by isolated gate drivers

On-Board Chargers

By providing industry-leading bandwidth for SiC/GaN protection and efficient high-voltage control, our isolated current sensors and gate drivers enable the higher power density required to accelerate EV adoption through faster, more reliable charging.
Thermal Management System

Thermal Management​

Enhance cabin comfort and extend vehicle range with Allegro’s quiet, efficient thermal management solutions perfected for EVs.

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 Motor Drivers

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Featured Products

Allegero 48 Pin LQFP with exposed thermal pad JP Package

AMT49100/AMT49101

ASIL BLDC MOSFET Gate Drivers for 48V Battery Systems
10-contact DFN EJ Package

A89500

100V Fast Switching Half Bridge MOSFET Driver
24-Pin-eTSSOP-with-exposed-thermal-pad-LP-Package

A89503

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

ACS70310/ACS70311

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

Documentation & Resources

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 integrated conductor and a non-invasive standalone core-free and shield-free differential Hall current sensor.
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 suite of current sensors, gate drivers, DC-DC regulators, and power management integrated circuits (PMICs) for a multitude of electrified vehicle (EV) applications.
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 solutions, as the electrical revolution continues to transform the automotive industry.
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 gate diver family.
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 battery voltage and power requirements for the headlights used in these vehicles.
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 performance and reliability in harsh environments and under complex operating conditions.
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.
Racing to Meet the Challenges of Electrification
Technical Article

Racing to Meet the Challenges of Electrification

Governments around the world, including the European Union and the United States, have placed mandatory fuel economy standards on combustion engines to reduce emissions. These initiatives will require innovative advances in technologies, driving the demand for increased efficiencies.
Hall Effect Current Sensing in Hybrid Electric Vehicle (HEV) Applications 
Technical Article

Hall Effect Current Sensing in Hybrid Electric Vehicle (HEV) Applications 

This note provides an understanding of hybrid electric vehicle (HEV) power systems and the contribution Hall-effect sensing technology can provide to improving the performance and cost-effectiveness of these systems.
EV Traction Motor Requirements and Speed Sensor Solutions
Application Note

EV Traction Motor Requirements and Speed Sensor Solutions

AN296226 - This paper explores the general requirement trends for speed and position sensors in traction motor systems, including high-speed capability, accuracy at startup, low-speed operation, immunity to vibration, EMC robustness, and safety.
Advanced Hall-Effect Linear Current Sensor IC Enables High BW Sensing in Hybrid Electric Vehicles and other High Current Sensing Applications
Application Note

Advanced Hall-Effect Linear Current Sensor IC Enables High BW Sensing in Hybrid Electric Vehicles and other High Current Sensing Applications

The Allegro™ A1366 linear Hall-effect sensor IC has been designed to meet the high bandwidth, high accuracy requirements of HEV inverter applications.
Hall Effect Current Sensing in Electric and Hybrid Vehicles
Application Note

Hall Effect Current Sensing in Electric and Hybrid Vehicles

Improved energy efficiency in HEVs and EVs can be attained by using electrically-driven actuators instead of belt-driven and hydraulic actuators. For instance, in traditional internal combustion engines a fan belt drives the cooling fan, which operates continuously while the engine is running.
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. Although these ICs are designed to operate under a wide variety of system factors, the cautious automotive designer must contemplate certain more-subtle system considerations.
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 that achieve reduced fuel consumption to help meet today's fuel economy standards.
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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