product brief two phase dual-coil high voltage smart fan motor driver with fg/rd ah9281/82 mar. 2010 bcd semiconductor manufacturing limited 1 description the ah9281/82 is a one-chip solution for driving two-coil brushless dc motors and fans. based on the advanced cdmos process, the ic contains a hall-effect sensor, dynamic offset correction and powerful output drivers with 1200ma peak output current capability. specially designed for driving large fans, the device is optimized for low start-up voltage. frequency generator or rotation detection is available. the open drain output makes easier the connectivity with any external interface such as hardware monitoring or super i/o ic. the ah9281/82 is available in to-95 and sot-89-5 packages. features ? high sensitivity integrated hall sensor ? low start-up voltage ? 5v, 12v and 24v operation ? peak output current up to 1200ma ? power efficient cmos and power mosfets ? built-in output protection clamping diode ? locked rotor shutdown and auto-restart ? integrated tachometer (ah9281) or alarm (ah9282) signal output ? esd rating: 6000v (human body model) 400v (machine model) applications ? 5v/12v/24v dc brushless motor/fan ? p c , s e r v e r, l a p t o p c o o l i n g f a n ? power supply cooling fan ? large or small fans parametric table supply voltage (v) 2.5 to 24 output saturation voltage ( v cc =12v , i out =350ma ) (v) 0.6 fg/rd output low voltage ( v cc =12v , i fg =5ma ) (v) 0.1 supply current (ma) 4 output on time (s) 0.8 output off time (s) 5 operating point (gauss) 20 releasing point (gauss) -20 hysteresis (gauss) 40 benefits ? minimum external components ? low startup voltage ? locked protection and auto-restart ? with fg or rd output ? wide operation voltage range ? excellent temperature performance ? high sensitivity for switching symmetry ? high esd and power efficient additional available materials ? samples ? preliminary datasheet ? reliability report ? esd report
product brief two phase dual-coil high voltage smart fan motor driver with fg/rd ah9281/82 mar. 2010 bcd semiconductor manufacturing limited 2 1 2 3 4 5 gnd dob do fg/rd vcc gnd dob do fg/rd vcc 123 4 5 pin configuration z5 package r package (to-95) (sot-89-5) (front view) (top view) ordering information example package temperature range output signal part number marking id packing type fg ah9281z5-g1 9281z5-g1 bulk to-95 rd AH9282Z5-G1 9282z5-g1 bulk fg ah9281rtr-g1 g41c tape & reel sot-89-5 -40 to 125 c rd ah9282rtr-g1 g41d tape & reel detailed information please refer to the relevant datasheet. sales office: shanghai no. 1600, zi xing road, shan ghai zizhu science-based industrial park, 200241, china tel : 86-21-24162266 fax : 86-21-24162277 taiwan 4f, 298-1 rui guang road, nei-hu district, taipei, taiwan tel : 886-2-2656-2808 fax : 886-2-2656-2806 usa 30920 huntwood ave. hayward, ca 94544, usa tel : +1-510-324-2988 fax : +1-510-324-2788 shenzhen unit a room 1203, skyworth bldg., gaoxin ave.1.s., nanshan district, shenzhen, china tel : 86-755-8826 7951 fax : 86-755-8826 7865
|
