ah2984 Diodes, Inc., ah2984 Datasheet
ah2984
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ah2984 Summary of contents
Page 1
... AH2984 Rev. 1 Two Phase Hall-Effect Smart Fan Motor Controller General Description The AH2984 is a one-chip solution for driving two-coil brushless DC motors and fans. It contains two complementary open-drain drivers for motor’s coil driving, automatic lock shutdown and restart function relatively. Specially designed for driving large fans, the device is optimized for low start-up voltage ...
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... Vdd Input power DO Output pin DOB Output pin GND Ground Block Diagram Vdd 1 Regulator Hall Plate Amp. AH2984 Rev. 1 Two Phase Hall-Effect Smart Fan Motor Controller Lock shutdown and Automatic recovery Control Logic 4 GND www.diodes.com AH2984 DOB DECEMBER 2008 © ...
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... Symbol Parameter Vdd Supply Voltage T Operating Ambient Temperature (Note 4) A Notes: 4. Shall not exceed P and Safety Operation Area heatsink, no air flow AH2984 Rev. 1 Two Phase Hall-Effect Smart Fan Motor Controller (Note 3) D2 2984 GND DOB DO 12V brush-less DC fan (T = 25° ...
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... The Vz value is in D.C voltage measurement. The Vz may vary with coils in the A.C. voltage measurement. Magnetic Characteristics Symbol Characteristics Bop Operate Point Brp Release Point Bhy Hysteresis AH2984 Rev. 1 Two Phase Hall-Effect Smart Fan Motor Controller = 25 °C, Vdd =12V, unless otherwise specified Conditions Operating, Vdd=12V Toff/Ton I = 300mA ...
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... Operating Characteristics DOB RP ON Brp 0 Bop Magnetic Flux Density in Gauss AH2984 Rev. 1 Two Phase Hall-Effect Smart Fan Motor Controller OFF OFF OP RP Vsat Vsat Brp Magnetic Flux Density in Gauss S Marking side N ( SIP- www.diodes.com AH2984 Bop DECEMBER 2008 © ...
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... P (mW) 198 Marking Information (1) SIP-4L Part Number AH2984 Rev. 1 Two Phase Hall-Effect Smart Fan Motor Controller 440 396 352 308 110 115 120 125 176 154 132 110 Dis sipa tion Curv e ...
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... Package Information (1) Package type: SIP-4L 0.7 mm Active Area Depth Package Dimension AH2984 Rev. 1 Two Phase Hall-Effect Smart Fan Motor Controller Marking side 1.95 士 0.1mm 1.1 士 0.1mm www.diodes.com AH2984 Sensor Location DECEMBER 2008 © Diodes Incorporated ...
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... Diodes Incorporated and all the companies whose products are represented on our website, harmless against all damages. Diodes Incorporated products are not authorized for use as critical components in life support devices or systems without the expressed written approval of the President of Diodes Incorporated. AH2984 Rev. 1 Two Phase Hall-Effect Smart Fan Motor Controller IMPORTANT NOTICE ...