ALLEGRO MICROSYSTEMS

ALLEGRO MICROSYSTEMS

Magnetic sensors, current sensors and power-management ICs

 

About the manufacturer

Allegro MicroSystems is a global semiconductor manufacturer specializing in sensing and power solutions. The company develops ICs for position, current and magnetic-field measurement as well as motor control and power management in automotive and industrial systems.

One of Allegro’s core areas of expertise is magnetic sensing based on Hall-effect and related technologies. These devices enable contactless detection of position, speed, direction of rotation and magnetic targets, reducing mechanical wear and supporting operation in demanding environments.

The manufacturer also develops isolated and non-isolated current sensors, driver ICs and power solutions for high-efficiency applications. Allegro technologies are designed for vehicle electrification, automation, robotics, data centers and energy infrastructure.

Allegro operates as a fabless semiconductor company and combines IC design with deep application knowledge in motion, drives and energy conversion. Its devices are therefore frequently selected where measurement accuracy, temperature robustness, reliability and reduced system component count are important.

 

Applications

Allegro MicroSystems devices are widely used in systems that require accurate motion, magnetic-field or current sensing and reliable power control. Key applications include:

– automotive – position and speed sensing, xEV powertrains, ADAS functions and motor control;

– industrial automation – contactless position detection, limit sensing, speed measurement and actuator monitoring;

– robotics – position and speed feedback and BLDC motor control;

– power supplies and converters – current sensing, energy monitoring and power-stage protection;

– energy and renewables – solar inverters, energy storage, EV chargers and power-conversion systems;

– consumer electronics and power tools – motor control and position sensing in compact equipment.

ALLEGRO MICROSYSTEMS products available from Maritex

The Allegro MicroSystems range available from Maritex focuses primarily on IC-based magnetic and current sensing. The portfolio supports both simple detection functions and more demanding measurement and control applications.

Available product groups include:

– Digital Hall-effect sensors, including unipolar and latch versions.

– Linear analog Hall-effect sensors for magnetic-field measurement.

– ICs for contactless position and magnetic-target detection.

– Integrated current sensors for uni- and bidirectional measurement.

– SMD and THT variants for different assembly requirements.

The range includes devices from the A11xx and A13xx families, such as A1102EUA-T, A1126LLHLT-T and A1324LLHLX-T, as well as ACS-series current sensors. Individual models differ in sensitivity, switching threshold, output type, operating-temperature range and package.

When selecting an Allegro device, first determine whether the application requires digital detection, analog magnetic measurement or current sensing. Then match the measurement range, sensitivity, supply voltage, temperature range, package and output characteristics to the target system.