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8902A Datasheet (PDF) - Allegro MicroSystems

8902A Datasheet PDF - Allegro MicroSystems
Part # 8902A
Download  8902A Download

File Size   156.61 Kbytes
Page   12 Pages
Manufacturer  ALLEGRO [Allegro MicroSystems]
Direct Link  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems
Description 3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER WITH BACK-EMF SENSING

8902A Datasheet (PDF)

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8902A Datasheet PDF - Allegro MicroSystems

Part # 8902A
Download  8902A Click to download

File Size   156.61 Kbytes
Page   12 Pages
Manufacturer  ALLEGRO [Allegro MicroSystems]
Direct Link  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems
Description 3-PHASE BRUSHLESS DC MOTOR CONTROLLER/DRIVER WITH BACK-EMF SENSING

8902A Datasheet (HTML) - Allegro MicroSystems

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8902A Product details

The A8902CLBA is a three-phase brushless dc motor controller/ driver for use in 5 V or 12 V hard-disk drives. The three half-bridge outputs are low on-resistance n-channel DMOS devices capable of driving up to 1.25 A. The A8902CLBA provides complete, reliable, self-contained back-EMF sensing motor startup and running algorithms. A programmable digital frequency-locked loop speed control circuit together with the linear current control circuitry provides precise motor speed regulation.

FEATURES
■ DMOS Outputs
■ Low rDS(on)
■ Startup Commutation Circuitry
■ Back-EMF Commutation Circuitry
■ Serial Port Interface
■ Frequency-Locked Loop Speed Control
■ Sector Data Tachometer Signal Input
■ Programmable Start-Up Current
■ Diagnostics Mode
■ Sleep Mode
■ Linear Current Control
■ Internal Current Sensing
■ Dynamic Braking Through Serial Port
■ Power-Down Dynamic Braking
■ System Diagnostics Data Out
■ Data Out Ported in Real Time
■ Internal Thermal Shutdown Circuitry




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About Allegro MicroSystems


Allegro MicroSystems is a semiconductor company that designs, manufactures, and markets high-performance power and sensing solutions. The company was founded in 1990 and is headquartered in Manchester, New Hampshire, USA.

Allegro MicroSystems' product portfolio includes Hall-effect sensors, power ICs, motor drivers, and magnetic digital position sensors. These products are used in a wide range of applications, including automotive, industrial, and consumer electronics.

Allegro MicroSystems is known for its expertise in magnetic sensing technology, which is used in many of its products. The company's products are designed to meet the highest standards of performance and reliability, and are manufactured using the latest technology and materials. Allegro MicroSystems also offers custom design and engineering services to meet the specific needs of its customers.

Allegro MicroSystems has a global presence, with sales offices and representatives located around the world. The company is dedicated to delivering innovative and reliable power and sensing solutions that meet the evolving needs of the electronics industry. In 2021, Allegro MicroSystems went public through an initial public offering (IPO) on the NASDAQ stock exchange.

*This information is for general informational purposes only, we will not be liable for any loss or damage caused by the above information.




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