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A5947-B Datasheet (PDF) - Allegro MicroSystems

A5947-B Datasheet PDF - Allegro MicroSystems
Part # A5947-B
Download  A5947-B Download
File Size   1212.0 Kbytes
Page   21 Pages
Manufacturer  ALLEGRO [Allegro MicroSystems]
Direct Link  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems
Description Three-Phase Sensorless Fan Driver IC

A5947-B Datasheet (PDF)

Go To PDF Page Download Datasheet
A5947-B Datasheet PDF - Allegro MicroSystems

Part # A5947-B
Download  A5947-B Click to download

File Size   1212.0 Kbytes
Page   21 Pages
Manufacturer  ALLEGRO [Allegro MicroSystems]
Direct Link  http://www.allegromicro.com
Logo ALLEGRO - Allegro MicroSystems
Description Three-Phase Sensorless Fan Driver IC

A5947-B Datasheet (HTML) - Allegro MicroSystems


A5947-B Product details

FEATURES AND BENEFITS
• AEC-Q100 qualified
• Speed curve configuration via EEPROM
• I2C serial port
• Sinusoidal modulation for reduced audible noise and
low vibration
• Sensorless (no Hall sensors required)
• Low RDS(ON) power MOSFETs
• 3.3 V / 20 mA linear regulator
• PWM or analog speed input
• FG speed output
• Slew rate control
• Lock detection
• Soft start
• Low power standby mode
• Overcurrent protection
• Overvoltage protection
DESCRIPTION
The A5947-B three phase motor driver IC incorporates
sensorless sinusoidal drive to minimize vibration for a wide
variety of fan applications. Sensorless control eliminates the
requirement for Hall sensors.
A flexible closed-loop speed control system is integrated into
the IC. EEPROM is used to tailor the common functions of the
fan speed curve to a specific application. This eliminates the
requirement for a microprocessor-based system and minimizes
programming requirements.
The A5947-B is available in a 20-lead TSSOP with exposed
thermal pad (suffix LP).




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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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