product brief btl drive single-phase full-wave fa n motor driver am4951/r/2 jun. 2010 bcd semiconductor manufacturing limited 1 description the am4951/r/2 series is a single-phase btl output fan motor driver designed by bipolar process. this ic features high efficiency, silent operation and includes lock shutdown and automatic restart functions. when the motor is under lock condition, the lock shutdown function turns off the output current. when the lock condition is removed, the ic will restart automatically and allow dc fan to run. it is applied for high reliability and low noise application, such as personal computers, notebook, car audio, cpu cooling systems and power supplies in consumer electronics systems. the am4951/r series is available in msop-8 (12v application only) or psop-8 (24v application only) package. the am4952 is available in msop-10 package. features ? btl output single-phase full-wave linear drive (gain resistor=1k to 360k ? , gain=51db) ? support low-voltage drive and feature a wide usable voltage range (2.2v to 24v) ? low saturation output (high side and low side saturation voltage): v sat_total =1.2v (typical, i out =250ma) ? built-in lock protection and automatic restart circuits ? built-in fg/rd output ? built-in hall sensor bias (am4952 only, v hb =1.5v) ? thermal protection circuit ? small-sized, high thermal capacity package ? fg output (am4951), rd output (am4951r), fg and rd output (am4952) applications ? notebook, personal computers ? p o w e r s u p p l i e s i n c o n s u m e r e l e c t r o n i c s , c a r audio and office peripherals ? cpu cooling systems parametric table (v cc =12v, t a =25 o c, unless otherwise noted.) supply current 1 (ma) (v ct =l) 6 supply current 2 (ma) (v ct =h) 5 out low saturation voltage (v) 0.25 out high saturation voltage (v) 0.95 hall input sensitivity (mv) 7 fg low level voltage (v) (for am4951/2) 0.15 rd low level voltage (v) (for am4951r/2) 0.15 hb voltage (v) (for am4952) 1.5 benefits ? wide operation voltage range ? soft-switching for low noise ? over temperature protection ? high esd and reliability process additional available materials ? samples ? data sheet ? reliability report ? esd report
product brief btl drive single-phase full-wave fa n motor driver am4951/r/2 jun. 2010 bcd semiconductor manufacturing limited 2 pin configuration mm package mp package (msop-8) (psop-8) for am4951/r 12v application for am4951/r 24v application mm package (msop-10) for am4952
product brief btl drive single-phase full-wave fa n motor driver am4951/r/2 jun. 2010 bcd semiconductor manufacturing limited 3 ordering information example package temperature range output signal part number marking id packing type am4951mm-g1 4951mm-g1 tube fg am4951mmtr-g1 4951mm-g1 tape & reel am4951rmm-g1 4951rmm-g1 tube msop-8 rd am4951rmmtr-g1 4951rmm-g1 tape & reel AM4951MP-G1 4951mp-g1 tube fg am4951mptr-g1 4951mp-g1 tape & reel am4951rmp-g1 4951rmp-g1 tube psop-8 rd am4951rmptr-g1 4951rmp-g1 tape & reel am4952mm-g1 4952mm-g1 tube msop-10 -40 to 105 c fg & rd am4952mmtr-g1 4952mm-g1 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
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