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AH287-PL-B Datasheet(PDF) 4 Page - Diodes Incorporated |
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AH287-PL-B Datasheet(HTML) 4 Page - Diodes Incorporated |
4 / 10 page AH287 HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER AH287 Rev. 4 4 of 10 JANUARY 2007 www.diodes.com © Diodes Incorporated Electrical Characteristics (TA = 25 °C, Vdd =24V, unless otherwise specified) Characteristics Symbol Conditions Min. Typ. Max. Unit Supply Voltage Vdd Operating 3.8 - 28* V Supply current Icc Operating - 2.0 4.0 mA Output Leakage Current Ioff VOUT=24V - < 0.1 10 µA Locked Protection On Tlrp-on 0.4 0.46 0.6 Sec Locked Protection Off Tlrp-off 2.4 2.76 3.6 Sec IO=200mA - 450 700 Output saturation voltage ) sat ( OUT V IO=300mA - 680 800 mV Output On resistance Rds(on) IO=200mA - 2.25 3.5 ohm Output Zener-breakdown Voltage Vz 42 55 65 V *Note: Please watch out the current limit issue when the operation voltage is over 26.4V, because of the different efficiency in the coil. Truth Table IN- IN+ CT OUT1 OUT2 Mode H L L H L Rotating L H L L H Rotating - - H off off Lockup protection activated Magnetic Characteristics (TA = 25 °C, Vdd = 24V, unless otherwise specified) (1mT=10 Gauss) Characteristics Symbol Min. Typ. Max. Unit Operate Point Bop 10 30 60 Gauss Release Point Brp -60 -30 -10 Gauss Hysteresis Bhy -- 60 -- Gauss |
Similar Part No. - AH287-PL-B |
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