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Allegro MicroSystems, Inc.

Allegro MicroSystems, Inc. is a leader in developing,manufacturing and marketing high-performance power and Hall-effect sensor integrated circuits.Allegro is headquartered in Worcester, MA with manufacturing plants in New Hampshire, Pennsylvania,Philippines and offices in Scotland, UK, France and Argentina.The company has passed the ISO 9000 quality management system and received quality awards from leading manufacturers worldwide including IECQ manufacturer's approval.Allegro is dedicated to providing value to the customers,offering technically advanced products,achieving growth and profitability,challenging the organization to continuously improve and maintain a positive work environment for the associates.

Allegro MicroSystems Products

Current Sensor ICs
Allegro MicroSystems, LLC has developed a line of fully integrated Hall-effect current sensor and Hall-effect linear integrated circuits that provide highly accurate, low noise output voltage signals that are proportional to an applied AC or DC current. These ICs are in high volume production in many applications, including automotive HEV inverters and electronic power steering (EPS) systems, and in industrial and consumer inverters and motor control applications.

Allegro current sensor ICs are also used in many power monitoring applications, such as computer blade servers and server power supplies. Allegro's proprietary fully integrated Hall-effect current sensor ICs employ advanced IC and packaging techniques for sensing current from 0 A to 50 A and 50 A to 200 A. These integrated solutions provide galvanic isolation (up to 4.8 kV) and extremely low resistance on the primary conductor (≤ 1m?) for highly efficient solutions and are available in a variety of surface mount and through-hole packages.  For sensing beyond 200 A, an Allegro linear current sensor IC can be used.

Allegro current sensor ICs allow design engineers to use Hall-effect-based current sensor ICs in new applications where increased energy efficiency or new operating features are required.

Magnetic Digital Position Sensor ICs
Hall-effect digital position sensor ICs detect changes in magnetic flux density, allowing them to distinguish movement and position. These contactless sensing solutions require few external components and can withstand the hostile operating conditions of automotive applications. Allegro has the industry’s broadest portfolio of magnetic digital position sensors with switching and latching solutions to cover just about any application need.

Specific advantages of Allegro’s solutions include:
1.4× chopper stabilization for superior temperature stability and resistance to physical stress
2.Low-voltage (3 V) operation
3.Key performance characteristics specified over the full operating voltage and ambient temperature ranges
4.Industry-leading jitter performance
5.Automotive-grade ruggedness (most products are qualified to AEC Q100) 
6.The majority of Allegro’s digital position sensing volume ships into demanding automotive applications, and has a proven quality record and dedication to continuous improvement.

Motor Driver and Interface ICs
Allegro offers an industry leading portfolio of motor driver and controller ICs for brushless DC, brush DC, and stepper motors.  Product architectures vary from highly-efficient internal DMOS drivers to MOSFET controller ICs suited for a wide variety of motor applications.  Coupled with a strong system level expertise, Allegro’s motor driver IC portfolio provides the user with a high-performance, leading edge and reliable motor control solution.  
Allegro's BCD (bipolar, CMOS and DMOS components) technology allows for a wide range of features that is well suited for today’s demanding motor control applications. Allegro motor driver ICs can be found in a number of demanding markets, including automotive, industrial and office equipment. Our products are found in motor driver applications such as automotive pumps and blowers, electronic power steering (EPS) systems, printers (ink-jet and laser) and a variety of cooling fan applications.


catégorie de produit

Circuits intégrés (CI)

Capteurs, transducteurs

  • A2982SLWTR-T
    A2982SLWTR-T
    Allegro
    IC PWR DRIVER BIPOLAR 1:1 20SOIC
    SOIC-20
  • A2557KLB
    A2557KLB
    Allegro
    SOP16
  • ULS2023H
    ULS2023H
    Allegro
    AUCDIP
  • ACS758LCB-050U
    ACS758LCB-050U
    Allegro
    CB-5
  • ACS756SCA-050B-PFF-T
    ACS756SCA-050B-PFF-T
    Allegro
    CB-5
  • ACS722LLCTR-10AU-T
    ACS722LLCTR-10AU-T
    Allegro
    SENSOR CURRENT HALL 10A DC
    SOIC-8
  • ACS722KMATR-10AB-T
    ACS722KMATR-10AB-T
    Allegro
    SOP
  • ACS714ELCTR-20A-T
    ACS714ELCTR-20A-T
    Allegro
    SOP8
  • ACS712ELCTR-05B
    ACS712ELCTR-05B
    Allegro
    SOP8
  • ACS711ELCTR-12AB-T
    ACS711ELCTR-12AB-T
    Allegro
    SOP-8
  • ACS70331EOLCTR-2P5B3
    ACS70331EOLCTR-2P5B3
    Allegro
    SOP8
  • UGN3503UA
    UGN3503UA
    Allegro
    TO-92S
  • UGN3020
    UGN3020
    Allegro
    TO-92S
  • A3959SLPT
    A3959SLPT
    Allegro
    TSSOP28
  • A3955SLB-T
    A3955SLB-T
    Allegro
    SOP16
  • A2982SLW
    A2982SLW
    Allegro
    SOP20
  • A8304SESTR-T
    A8304SESTR-T
    Allegro
    QFN16
  • A8293
    A8293
    Allegro
    QFN
  • A8290SETTR-T
    A8290SETTR-T
    Allegro
    QFN-28
  • A6841SLW-20-T
    A6841SLW-20-T
    Allegro
    SOP
  • A6841SA-T
    A6841SA-T
    Allegro
    DIP
  • A6833SEP-T
    A6833SEP-T
    Allegro
    PLCC
  • A6832SEP-T
    A6832SEP-T
    Allegro
    PLCC
  • A6832EEP-T
    A6832EEP-T
    Allegro
    PLCC
  • A6821SLW-T
    A6821SLW-T
    Allegro
    SOP
  • A6821SA-T
    A6821SA-T
    Allegro
    DIP
  • A6821SAT
    A6821SAT
    Allegro
    DIP
  • A6812SA
    A6812SA
    Allegro
    DIP
  • A6810SAT
    A6810SAT
    Allegro
    SOP
  • A6810SA
    A6810SA
    Allegro
    DIP-18
  • A6801SA-T
    A6801SA-T
    Allegro
    DIP
  • A8504
    A8504
    Allegro
    QFN
  • A8500
    A8500
    Allegro
    QFN
  • UCN5891A
    UCN5891A
    Allegro
    DIP
  • UCN5841A
    UCN5841A
    Allegro
    DIP-18
  • UCN5833EP
    UCN5833EP
    Allegro
    PLCC
  • UCN5833A
    UCN5833A
    Allegro
    DIP40
  • UCN5818AF
    UCN5818AF
    Allegro
    DIP40
  • UCN5811A
    UCN5811A
    Allegro
    DIP