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A5947G - Three-Phase Sensorless Fan Driver

Description

The A5947G 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.

Features

  • 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 pr.

📥 Download Datasheet

Datasheet Details

Part number A5947G
Manufacturer Allegro
File Size 1.30 MB
Description Three-Phase Sensorless Fan Driver
Datasheet download datasheet A5947G Datasheet

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Other Datasheets by Allegro

Part Number Description
A5947-B Three-Phase Sensorless Fan Driver
A5940 Three Phase Sensorless Sinusoidal Fan Driver
A5941 Three-Phase Sensorless Fan Driver
A5943 Three Phase Sinusoidal Fan Driver
A5944 Three-Phase Sensorless Fan Driver

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
A5947G Three-Phase Sensorless Fan Driver IC FEATURES AND BENEFITS • 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 PACKAGES: DESCRIPTION The A5947G 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.
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