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OCH29891 - 500mA Single Phase DC Fan Driver

This page provides the datasheet information for the OCH29891, a member of the OCH29891-ORIENT 500mA Single Phase DC Fan Driver family.

Datasheet Summary

Description

The OCH29891 is an integrated Hall sensor with H-Bridged output driver designed for brushless DC motor applications.

Features

  • One-chip Solution (Hall Element + Driver).
  • Continuous Output Current : 500mA.
  • High Sensitivity Hall Sensor BOP25GS、BRP-25GS.
  • Lock-.

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Datasheet preview – OCH29891

Datasheet Details

Part number OCH29891
Manufacturer ORIENT-CHIP
File Size 213.51 KB
Description 500mA Single Phase DC Fan Driver
Datasheet download datasheet OCH29891 Datasheet
Additional preview pages of the OCH29891 datasheet.

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Full PDF Text Transcription

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OCH29891 500mA Single Phase DC Fan Driver ◼ General Description The OCH29891 is an integrated Hall sensor with H-Bridged output driver designed for brushless DC motor applications. The device is using HV process includes an one-chip Hall sensor for magnetic sensing, an amplifier that amplifies the Hall voltage, a comparator to provide switching hysteresis for noise rejection, a bi-directional drivers for sinking and driving large current load. Placing the device in a variable magnetic field, if the magnetic flux density is larger than threshold BOP, the DO is turned to sink and DOB is turned to drive. This output state is held until the magnetic flux density reverses and falls below BRP, then causes DO to be turned to drive and DOB turned to sink.
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