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AH289 Datasheet(PDF) 4 Page - Diodes Incorporated |
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AH289 Datasheet(HTML) 4 Page - Diodes Incorporated |
4 / 9 page AH289 HIGH VOLTAGE HALL-EFFECT SMART FAN MOTOR CONTROLLER AH289 Rev. 3 4 of 9 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 VOUT(SAT) IO = 300mA - 680 800 mV Output On Resistance Rds(on) IO = 200mA - 2.25 3.5 ohm RD Output Vds Vol IO = 10mA - 0.3 0.5 V Output Zener-Breakdown Voltage Vz 42 55 65 V *Note: Please watch 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 RD Mode H L L H L L Rotating L H L L H L Rotating - - H off off H Lockup protection activated Magnetic Characteristics ( TA = 25 °C, Vdd = 24V, unless otherwise specified ) ( 1mT = 10 Gauss ) Characteristics Symbol Min. Typ. Max. Unit Operation Point Bop 10 30 60 Gauss Release Point Brp -60 -30 -10 Gauss Hysteresis Bhy -- 60 -- Gauss |
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