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OCH2980

Part Number	OCH2980
Manufacturer	Orient Chip
Description	Two Phase Hall-Effect Smart Fan Motor Controller
Published	Oct 17, 2018
Detailed Description	OCH2980 Two Phase Hall-Effect Smart Fan Motor Controller ◼ General Description The OCH2980 is a single-chip solution fo...
Datasheet	OCH2980 PDF File

Overview

OCH2980 Two Phase Hall-Effect Smart Fan Motor Controller ◼ General Description The OCH2980 is a single-chip solution for driving two-coil brushless direct current (BLDC) fans and motors.
The device includes a Hall-effect sensor, dynamic offset correction and two complementary open-drain output drivers with internal Zener diode protection.
It is optimized for low start-up voltage.
To help protect the motor coils, the OCH2980 provides Rotor Lock Protection which shuts down output drives if rotor lock is detected.
The device automatically re-starts when the rotor lock is removed.
Over temperature shutdown provides thermal protection for the device.
The OCH2980 is available in SIP4 package.
◼ Features ⚫ Single-Chip solution ⚫ High sensitivity Hall-effect Sensor ⚫ Operating Voltage: 3.
5V to 18V ⚫ Average output current up to 600mA ⚫ Built-in Hall sensor and input amplifier ⚫ Rotor Lock Protection (Lock detection, output shutdown and automatic re-start) ⚫ Built-in reverse...

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