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OCH29891 - 500mA Single Phase DC Fan Driver

Download the OCH29891 datasheet PDF. This datasheet also covers the OCH29891-ORIENT variant, as both devices belong to the same 500ma single phase dc fan driver family and are provided as variant models within a single manufacturer datasheet.

General Description

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

Key Features

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

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (OCH29891-ORIENT-CHIP.pdf) that lists specifications for multiple related part numbers.

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

📁 Similar Datasheet

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OCH2988 500mA Single Phase Hall-Effect DC Fan Driver Orient Chip

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Part Number Description
OCH29803 300mA Single Phase Hall-Effect DC 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
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.