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AH287T-P Datasheet(PDF) 1 Page - Anachip Corp |
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AH287T-P Datasheet(HTML) 1 Page - Anachip Corp |
1 / 7 page AH287 High Voltage Hall-Effect Smart Fan Motor Controller This datasheet contains new product information. Anachip Corp. reserves the rights to modify the product specification without notice. No liability is assumed as a result of the use of this product. No rights under any patent accompany the sale of the product. Rev. 0.1 Jan 17, 2005 1/7 Features - On chip Hall sensor - Rotor-locked shutdown - Automatically restart - Built-in Zener protection for output driver - Operating voltage: 3.8V~28V - Output current: IO(AVE) = 400mA - Package: SIP-4L, SOT89-5L Pin Assignment 287 12 4 3 1 : VCC 2 : DO 3 : DOB 4 : GND Front View SIP-4L 1 2 3 74 5 DOB DO GND NC VCC SOT89-5L 287 General Description AH287 is a monolithic fan motor controller with Hall sensor’s capability. It contains two complementary open-drain drivers for motor’s coil driving, automatic lock shutdown and restart function relatively. To avoid coil burning, rotor-lock shutdown detection circuit shut down the output driver if the rotor is blocked and then the automatic recovery circuit will try to restart the motor. This function repeats while rotor is blocked. Until the blocking is removed, the motor recovers running normally. Pin Descriptions Name Description VCC Input power DO Output pin DOB Output pin GND Ground NC Not connected Ordering Information AH287 X -X X X Packing Blank : Tube or Bulk A : Tape & Reel P: SIP-4L Y: SOT89-5L Package Lead L : Lead Free Blank: Normal Wafer Body Blank or A~Z : if necessary to specify |
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