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BH67172NUX - Three-Phase Full-Wave Fan Motor Driver

General Description

BH67172UX is a three-phase sensorless fan motor driver used to cool off notebook PCs.

It is controlled by a variable speed provided through the PWM input signal.

Key Features

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  • Speed controllable by PWM input signal.
  • Sensorless drive.
  • Soft switched drive Quick start.
  • Power save function.
  • Internal RNF resistance.
  • Quick start function.

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Datasheet Details

Part number BH67172NUX
Manufacturer ROHM
File Size 538.60 KB
Description Three-Phase Full-Wave Fan Motor Driver
Datasheet download datasheet BH67172NUX Datasheet

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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.

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Datasheet DC Brushless Fan Motor Drivers Three-Phase Full-Wave Fan Motor Driver BH67172NUX ●General description BH67172UX is a three-phase sensorless fan motor driver used to cool off notebook PCs. It is controlled by a variable speed provided through the PWM input signal. Its feature is sensorless drive which doesn’t require a hall device as a location detection sensor and motor downsizing can be achieved by limiting the number of external components as much as possible. Furthermore, introducing a direct PWM soft switched driving mechanism achieves silent operations and low vibrations.