XN4410 2a pwm ?? ???? 2008 4 ds.XN4410v1.0 1? XN4410 2a pwm ?? XN4410 ? pwm ????? ???????? pmos ?? XN4410 ?????? ??? pwm ? 0~100% ? ??????? XN4410 ? ????? ??? 380khz 35khz ???????? ? ?pmos ? XN4410 ??? ????????? ??? sop?8l ?? ??????? ??? 15v ?? ac ? 3.6 to 15v ? 0.8v to v cc ??? 0~100% ???? 380khz ?? 1?? ?pmos ?? sop-8l pb-free ? td1410/mp1410 ? pc ?? ? dvd adsl ? ? ? ? ? free datasheet http://
XN4410 2a pwm ?? ???? 2008 4 ds.XN4410v1.0 2? ?? ?? v out = v fb x (1+r 1 /r 2 ) r 2 =0.7k~5k ohm ?? sop-8l ?? ? 1,6,8 nc 2 v cc ? 3 output ?????? 4 v ss ? 5 fb ???fb ?? 7 en ??? h ????? l ?????? ??? free datasheet http://
XN4410 2a pwm ?? ???? 2008 4 ds.XN4410v1.0 3? ??? ? v cc ??? v ss -0.3 to v ss +20 v v fb ?? v ss -0.3 to v cc v v en ??? v ss -0.3 to v cc +0.3 v v output ?? v ss -0.3 to v cc +0.3 v p d internally limited mw t opr ? -20 to +125 t stg ? -40 to +150 ?? ???????????? ??? v cc =12v,t=25 , .( ??) v in ? - 3.6 - 15 v v fb ? i out =0.2a 0.784 0.8 0.816 v i fb ?? i out =0.2a - 0.1 0.5 ua i sw ?sw - 2.5 - - a i sss ?? v en =0v - 0.1 - ua i q ? v fb =2v - 3.0 5.0 ma v out /v out ? v in =7v 15v - 2 4 % v out /v out ? i out =0.2 to 2a - 0.2 0.5 % f osc ?? measure waveform at sw pin 340 380 420 khz f osc1 ?? measure waveform at sw pin - 35 - khz v sh evaluate oscillation at sw pin 2.0 - - v sl ??? evaluate oscillation stop at sw pin - - 0.8 v i sh ?? - - 20 - ua free datasheet http://
XN4410 2a pwm ?? ???? 2008 4 ds.XN4410v1.0 4? i sl - - -10 - ua t ss ? - 0.3 2 5 ms v in =5v v fb =0v - 100 150 r dson mosfet ? v in =12v v fb =0v 65 100 m ? effi v in =12v v out =5v i out =2a - 92 - % free datasheet http://
XN4410 2a pwm ?? ???? 2008 4 ds.XN4410v1.0 5? pwm XN4410 ?? pwm dc/dc ??????? 0~100% ??????? ????? ?? vcc vcc ???? v cc ? ?????? ??? vss ?? sw ????? 0.5v ? vcc ? vds ??????vout/vcc?? ???????? ?? fb ?? en ?????????? 0.1ua ??? 0.8v ??????? 2v ??? free datasheet http://
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