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AH293 Datasheet(PDF) 1 Page - Anachip Corp |
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AH293 Datasheet(HTML) 1 Page - Anachip Corp |
1 / 9 page AH293 Low 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. 0.5 Jun 18, 2004 1/9 Features - On chip Hall sensor - Rotor-locked shutdown - Automatically restart - Rotor-state detection (RD) output - Buil t-in Zener protection for output driver - Operating voltage: 1.8V~5.75 V - Output current: ) AVE ( O I = 400 mA - Package: SIP-5L, SOT23-5L, SOT89-5L General Description AH293 is a monolithic fan motor controller with Hall sensor’s capability. It contains two complementary open-collector transistors for motor’s coil driving, automatic lock current shutdown, and recovery protections. Besides, rotor-state detection (RD) output is for speed detection. 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. These protecting actions are repeated and periodic during the blocked period. Until the blocking is removed, the motor recovers running normally. Pin Configuration 1 : RD 2 : VCC 3 : DO 4 : DOB ( Front View ) 15 4 3 2 293 5 : GND SIP-5L 1 3 2 5 4 SOT23-5 VCC GND DO DOB RD 293 1 2 3 74 5 DOB DO GND RD VCC SOT89-5L AH293 Pin Descriptions Symbol Description RD Rotor-state detection VCC Input power DO Output pin DOB Output pin GND Ground Ordering Information AH293 X - X X X Packing Blank : Tube or Bulk A : Tape & Reel P: SIP-5L Package Lead L : Lead Free Blank: Normal Wafer Body Blank or A~Z : if necessary to specify W: SOT23-5L Y: SOT89-5L |
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