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Allegro MicroSystems, LLC.

- Allegro MicroSystems, (Allegro) is a leader in developing high-performance power and sensing semiconductors. Allegro's innovative solutions serve high-growth applications within the automotive market, with additional focus on industrial and consumer/computing solutions. Allegro is headquartered in Manchester, New Hampshire (USA) with design, applications, and sales support centers located worldwide.

Newest Products View All (99)

ACS70310 Linear Hall IC

Allegro's ACS70310 is a programmable linear Hall-effect current sensor IC with industry leading accuracy and resolution without compromising bandwidth. Learn More

A5947 3-Phase Sensorless Fan Driver IC

Allegro's A5947 3-phase sensorless fan driver IC is ideal for a variety of industrial and automotive fan applications such as battery-cooling fans. Learn More

ACS730KLC Current Sensor IC

The ACS730 current sensor IC is Allegro MicroSystems' first-ever 1 MHz bandwidth Hall effect current sensor IC with a lighting-fast 210 ns response time. Learn More

AMT49700 Automotive Stepper Motor Driver IC

Allegro's AMT49700 automotive microstepping motor driver IC with programmable motion control improves microprocessor loading and reduces external components. Learn More

ACS71240 Integrated Current Sensor

Allegro's ACS71240 automotive-grade, galvanically isolated current sensor IC comes in a small footprint, low-profile package. Learn More

AMT49400 BLDC Fan Driver

The Allegro AMT49400 is targeted specifically at 12 V fans used in desktop computers, all-in-one computers, GPU/CPU cooling fans, and appliance fans. Learn More

Recent PTMs View All (9)

ACS726 Hall-effect Based Current Sensor Publish Date: 2015-08-13

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

Duration: 10 minutes
ACS764 Hall-effect Based Current Sensor IC Publish Date: 2014-04-22

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

Duration: 5 minutes
A49xx Family of Stepper Motor Driver ICs Publish Date: 2013-06-05

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

Duration: 10 minutes
Current Sensor ICs Publish Date: 2013-03-05

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

Duration: 5 minutes

Featured Videos View All (5)

Allegro Microsystems ACS71020 Power Monitoring IC | Digi-Key Daily

ACS71020 power monitoring IC from Allegro Microsystems greatly simplifies the addition of power monitoring to any AC/DC powered device.

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