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AH285V-WL Datasheet(PDF) 1 Page - Anachip Corp |
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AH285V-WL Datasheet(HTML) 1 Page - Anachip Corp |
1 / 9 page AH285 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. 1.0 Sep 29, 2005 1/9 Features - On chip Hall sensor - Rotor-locked shutdown - Automatically restart - Frequency generator (FG) output - Buil t-in Zener protection for output driver - Operating voltage: 3.8V~20V - Output current: IO(AVE) = 500mA for SIP-5/SOT89-5 - Output current: IO(AVE) = 400mA for SOT23-5 - Package: SIP-5L, SOT23-5L, SOT89-5L Pin Configuration 1 : FG 2 : Vdd 3 : DO 4 : DOB ( Front View ) 15 4 3 2 285 5 : GND General Description AH285 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. 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 the rotor is blocked. Until the blocking is removed, the motor recovers running normally. Pin Descriptions Symbol Description FG Frequency generation Vdd Input power DO Output pin DOB Output pin GND Ground SIP-5L 1 2 3 74 5 DOB DO GND FG Vdd SOT89-5L 285 1 3 2 5 4 SOT23-5 FG GND DO DOB Vdd 285 Ordering Information AH285 X - X X X Packing Blank : Bulk A : Tape & Reel P: SIP-5L Package Lead L : Lead Free Wafer Body Blank or A~Z : if necessary to specify Y: SOT89-5L W: SOT23-5L (for SOT Packages Only) |
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