Datasheet4U Logo Datasheet4U.com

A5947-B Three-Phase Sensorless Fan Driver

📥 Download Datasheet Datasheet Preview Page 1

Description

A5947-B Three-Phase Sensorless Fan Driver IC .
The A5947-B three phase motor driver IC incorporates sensorless sinusoidal drive to minimize vibration for a wide variety of fan applications.

📥 Download Datasheet

Preview of A5947-B PDF
datasheet Preview Page 2 datasheet Preview Page 3

Datasheet Specifications

Part number
A5947-B
Manufacturer
Allegro
File Size
1.18 MB
Datasheet
A5947-B-Allegro.pdf
Description
Three-Phase Sensorless Fan Driver

Features

* 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 regulat

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 an

A5947-B Distributors

📁 Related Datasheet

  • A59 - Cascadable Amplifier (MA-COM)
  • A59-1 - Cascadable Amplifier (MACOM)
  • A5954 - 4-channel motor servo driver (AOTOM)
  • A5970AD - Up to 1 A step down-switching regulator (STMicroelectronics)
  • A5970D - 1.5A switch step down switching regulator (STMicroelectronics)
  • A5972D - Up to 1.5A step-down switching regulator (STMicroelectronics)

📌 All Tags

Three-Phase Sensorless Fan Driver Allegro
Allegro A5947-B-like datasheet