Safety and ADAS

The path to zero accidents and higher levels of vehicle autonomy is built on a foundation of absolute trust. This requires electronic systems that provide precise data and dependable control, without fail, under all conditions.

Allegro provides this foundation with a comprehensive portfolio of ASIL-compliant sensing and power ICs, all developed through our certified ISO 26262 process. Our solutions are at the heart of the most critical ADAS functions, including fail-operational steering and braking, attentive driver monitoring, and high-reliability environmental sensing for detection and ranging. Our purpose is to deliver the proven, automotive-first technology that enables every level of ADAS, from driver assistance to fully autonomous driving, making the future of mobility safer for everyone.

Safety and Advanced Driver Assistance Systems Application Focused Block Diagram
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    Braking

    The transition from conventional to electromechanical and brake-by-wire systems demands fail-operational performance and instantaneous response for features like autonomous emergency braking (AEB).


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    Suspension

    The transition from conventional to electromechanical and brake-by-wire systems demands fail-operational performance and instantaneous response for features like autonomous emergency braking (AEB).


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    Driver Monitoring

    Allegro’s compact infrared LED drivers reduce EMI and board space, helping you build smaller, more efficient and reliable driver monitoring systems.


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    Detection and Ranging

    Support Lidar and Radar systems with Allegro’s efficient power regulation and drivers, enabling fast, accurate object detection and collision avoidance.


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    Steering Systems

    The transition from mechanical and hydraulic steering to advanced Electric Power Steering (EPS) and fully electronic Steer-by-Wire (SbW) systems is critical for improving vehicle efficiency and enabling autonomous driving.


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Browse by application

Side view of car and wheel

Braking Systems

Enable safer, smarter braking with Allegro’s automotive-qualified motor drivers, PMICs, and sensors built for reliability and precision.
Car with Radar System

Detection and Ranging

Support Lidar and Radar systems with Allegro’s efficient power regulation and drivers, enabling fast, accurate object detection and collision avoidance.
man in car with driver monitoring feature

Driver Monitoring Systems

Allegro’s compact infrared LED drivers reduce EMI and board space, helping you build smaller, more efficient and reliable driver monitoring systems.
Steering

Steering Systems

Achieve precise, responsive control with Allegro’s sensing and power solutions for electric power steering systems. Our products support smooth handling, higher reliability, and improved fuel efficiency across a range of driving conditions.
Suspension

Suspension

Learn how ASIL-rated motor drivers, GMR sensors & power ICs deliver fail-operational control for brake-by-wire, enabling regenerative braking & ADAS.

Documentation & Resources

Differential Hall-Effect Sensors: Safer and More Reliable for Two-Wheelers of the Future
Application Note

Differential Hall-Effect Sensors: Safer and More Reliable for Two-Wheelers of the Future

AN296173 - The use of electronic controls for engine, transmission, and wheel speed in two- and three-wheeled vehicles is growing, particularly in developing nations. This trend is largely driven by mandates to improve air quality, fuel efficiency, and vehicle safety worldwide.
Vehicle Safety Systems
Application Note

Vehicle Safety Systems

Occupant safety is one of the most critical elements of the automobile design. As a result, safety systems continue to become more sophisticated in order to limit, and ultimately prevent, personal injury in the case of an accident.
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 will typically come from both high-resolution speed information and fairly coarse position information.
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 rotating shaft either in an on-axis or off-axis arrangement. This application note is dedicated to a review of on-axis magnetic applications.
Achieving Fast SENT Message Response with A1346 Linear Hall-Effect Sensor ICs on Shared Bus 
Application Note

Achieving Fast SENT Message Response with A1346 Linear Hall-Effect Sensor ICs on Shared Bus 

AN296131 - In safety-critical magnetic sensing applications, such as torque sensing in electronic power steering (EPS) modules, redundant sensors are often the approach used to achieve desired performance while maintaining strict safety requirements.
Unipolar Hall-Effect Sensor IC Basics
Application Note

Unipolar Hall-Effect Sensor IC Basics

There are four general categories of Hall-effect IC devices that provide a digital output: unipolar switches, bipolar switches, omnipolar switches, and latches. Unipolar switches are described in this application note.
Functional Safety Challenges to the Automotive Supply Chain
Technical Article

Functional Safety Challenges to the Automotive Supply Chain

The electronic content in automobiles has increased steadily over the past few decades and shows no signs of slowing as many high-tech firms and OEMs race towards the development of fully autonomous vehicles.
Magnetic Sensor ICs Offer Integrated Diagnostics for ASIL Compliance
Technical Article

Magnetic Sensor ICs Offer Integrated Diagnostics for ASIL Compliance

The ever-evolving requirements of the automotive, industrial, and commercial markets for increased reliability and functionality will continue to drive demand for electronic content, including non-contact magnetic sensor ICs with diagnostics.
Top Motor Braking Trends In The Automotive Industry
Whitepaper

Top Motor Braking Trends In The Automotive Industry

This whitepaper examines the most promising trends in electronic braking and introduces our sensor IC solutions for automotive applications.
Advanced On-Chip Linearization in the A1335 Angle Sensor IC
Application Note

Advanced On-Chip Linearization in the A1335 Angle Sensor IC

AN296127 - This document shows how magnetic-input-related errors in excess of ±20 degrees can be linearized by the A1335 to as low as ±0.3 degrees—roughly a 65× improvement.
Brochure: LED Headlamps for Mainstream Vehicles
Brochure

Brochure: LED Headlamps for Mainstream Vehicles

The A80803 is a switch-mode, constant-current controller for high-power LED automotive lighting applications that addresses many common pain points for headlight designers.
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 and calculating the linearization coefficients using our available software tools with the intention of providing an easy-to-use guide to programming these sensor ICs.
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.
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 monitoring of brushless DC (BLDC) motors.
The Future of Automotive Wheel Sensing with GMR
Technical Article

The Future of Automotive Wheel Sensing with GMR

P0083 - With the rise of vehicle electrification, computerized control systems, and subsystem reliability monitoring, it has become essential for systems to have accurate rotational information for each wheel of the vehicle.

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