OCH2987 Datasheet 350ma Single Phase Hall-effect DC Fan Driver

Manufacturer: Orient Chip

Overview: OCS Confidential DO NOT COPY OCH2987 350mA Single Phase Hall-Effect DC Fan Driver .

Datasheet Details

Part number	OCH2987
Manufacturer	Orient Chip
File Size	816.13 KB
Description	350mA Single Phase Hall-Effect DC Fan Driver
Datasheet	OCH2987-OrientChip.pdf

General Description

The OCH2987 is an integrated Hall sensor with H-Bridged output driver designed for brushless DC motor applications.

The device is using HV process includes an on-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.

Key Features

One-chip Solution (Hall Element + Driver).
Input Voltage Range : 3V to 24V.
Low Output Switching Current Noise.
Built-in VCC To GND reverse voltage protection.
Rotor Lock Protection (Lock detection, output shutdown and automatic re-start).
High Sensitivity Hall Sensor BOP(25GS),BRP(-25GS).
Thermal Shutdown Protection.
-40℃ to +125 ℃ Temperature Range.
RoHS Compliant.
Available in SIP-4L(TO94) package.

OCH2987 Distributor

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