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- 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.
Allegro maintains key relationships with major subcontractors to accommodate fluctuations in upside demand. Sales are balanced worldwide throughout North and South America, Europe, Japan and Asia-Pacific, with products sold primarily to OEMs through a strong worldwide sales channel that includes a direct sales force, manufacturer’s representatives, and distributors. Allegro is TS16949 and ISO14001 registered and has received quality awards from leading manufacturers worldwide.
Together, Digi Key and Allegro manage inventory so that products are in stock and available for customers. Allegro offers a wide range of integrated circuit solutions focused on motor control, regulation, and magnetic field sensing applications. Allegro’s designs allow customers to develop solutions that reduce mechanical wear and provide greater measurement accuracy. Unique packaging technologies developed by Allegro create customized solutions that incorporate silicon, magnets, and high current conductors in a single solution.
A4928KLPTR-T Half-Bridge MOSFET
Allegro MicroSystems' A4928 is an N-channel power MOSFET driver capable of controlling MOSFETs connected in a half-bridge arrangement.
ACS70331 Current Sensor ICs
Allegro's ACS70331 high sensitivity current sensor ICs are for sensing up to 5 A (DC or AC) and operate from a 3.3 V power supply.
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.
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.
ALS31300 3D Linear Hall Effect Sensor
The Allegro Microsystems ALS31300 three-axis linear Hall effect sensor IC provides 12-bit digital output words.
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.
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
Duration: 5 minutes
Designed for applications that require digital current sending and reporting through an I²C bus.
A49xx Family of Stepper Motor Driver ICs
Complete microstepping motor drivers with a built-in translator for easy operation and overcurrent protection, reducing rework costs in operations.
Current Sensor ICs
Line of fully integrated Hall-effect current sensor ICs providing highly accurate output voltage signals proportional to the current that is being applied.
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 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
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