AH288 PDF Datasheet
Please enter the part number you wish to PDF download in the search bar.
Description
This is HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER. Features
AH288
HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER
General Description
On chip Hall sensor Rotor-locked shutdown Automatically restart Frequency generator (FG) output Built-in Zener protection for output driver Operating voltage: 3.8V~28V Output current: IO(AVE) = 400mA Lead Free Package: SOT89-5L (Note 1) SOT89-5L: Available in “Green” Molding Compound
(No Br, Sb) Lead Free Finish, RoHS Compliant (Note 2)
AH288 is a monolithic fan motor controller with Hall sensor’s capability. It contains two complementary open-drain transistors as motor coil drivers, automatic lock current shutdown, and recovery protections. Additional, frequency generator (FG) output is for speed detection relatively.
Rotor-lock shutdown detection circuit turns off the output driver when the rotor is blocked to avoid coil overheat. Then, the automatic recovery circuit will restart the motor. These protected actions are repeated and periodic during the blocked period. Until the.