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Allegro MicroSystems, LLC.

- Allegro MicroSystems, LLC. is a leader in developing, manufacturing and marketing high-performance power and Hall-effect sensor integrated circuits. Allegro's innovative solutions serve high-growth applications within the automotive market, with additional focus on office automation, industrial, and consumer/communications solutions. Allegro is headquartered in Worcester, Massachusetts (USA) with design, applications, and sales support centers located worldwide.

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Newest Products View All (81)

Image of Allegro Microsystems' ALT80800 AEC-Q100, 2 A Synchronous Buck LED Driver

ALT80800 AEC-Q100, 2 A Synchronous Buck LED Driver

Allegro Microsystems' ALT80800 is a single-IC synchronous buck switching regulator which provides constant-current output to drive high-power LEDs.

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Image of Allegro MicroSystems A4919 Three-Phase MOSFET Driver IC with On-Board Regulator

A4919 Three-Phase MOSFET Driver IC with On-Board Regulator

Allegro MicroSystems A4919 is a three-phase controller with an integrated regulator for use with N-channel external power MOSFETs.

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Image of Allegro ALS31300 3D Linear Hall-Effect Sensor

ALS31300 3D Linear Hall Effect Sensor

The Allegro Microsystems ALS31300 three-axis linear Hall effect sensor IC provides 12-bit digital output words.

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Image of Allegro's A4480 Wide Input Regulator

A4480 Wide Input Regulator

Allegro’s A4480 is a wide input regulator with complete control, diagnostics, and protection features that address many requirements of automotive applications.

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Image of Allegro's A1262 2D Sensor IC

A1262 2D, Dual Channel, Latching Hall-Effect Sensor IC

Allegro's 2D architecture of the A1262 simplifies the design of motors and magnetic encoders by providing quadrature output signals in a very small footprint.

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Image of Allegro's A4964 Sensorless Sinusoidal Drive BLDC Controller

A4964 Sensorless Sinusoidal Drive BLDC Controller

Allegro’s A4964 provides the supply and watchdog for the microcontroller and the high-voltage interfaces between the micro-controller and the central.

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Product Training Modules View All (9)

ACS726 Hall-effect based current sensor

ACS726 Hall-effect Based Current Sensor

Duration: 10 minutes

The ACS726 is the first product in Allegro’s family of current sensors to include a fully differential output signal.

ACS764 Hall-effect Based Current Sensor IC

ACS764 Hall-effect Based Current Sensor IC

Duration: 5 minutes

Designed for applications that require digital current sending and reporting through an I²C bus.

A49xx Stepper Motor Driver ICs

A49xx Family of Stepper Motor Driver ICs

Duration: 10 minutes

Complete microstepping motor drivers with a built-in translator for easy operation and overcurrent protection, reducing rework costs in operations.

Current Sensor ICs

Current Sensor ICs

Duration: 5 minutes

Line of fully integrated Hall-effect current sensor ICs providing highly accurate output voltage signals proportional to the current that is being applied.

Featured Videos View All (4)

A1569: A Single Chip LED Lighting Solution with Integrated Hall-Effect Switch

The A1569 is a highly integrated solution that combines a Hall-effect switch with a linear, programmable current regulator, providing up to 150 mA to drive one or more LEDs.

Allegro A4915 Full Version

Allegro A4915 Full Version

Allegro A4915 Demo Board

Allegro A4915 Demo Board

ACS712 Low-Noise 2100 VRMS Hall-Effect Current Sensor IC

The Allegro ACS712 provides economical and precise solutions for AC or DC current sensing in industrial, commercial, and communications systems