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.
Browse by application
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
Allegro’s gate drivers, current sensors, and regulators enable high-frequency, isolated power conversion with greater control and integration.
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 Systems
Maximize efficiency and performance in hybrid vehicles with Allegro’s power and sensing solutions.
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
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.
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Documentation & Resources
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.
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.
OnDemand Webinar
EV Battery Management: Current Sensing in Disconnect Units
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 posi...
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.
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.
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.
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.
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.
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.
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.
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.
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
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.
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.
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.