power electronics m-power2b series features ? power effciency keeps high from a light load to a rated load. ? low noise is achieved because of soft switching technique. ? easy to design high reliabilit y smps due to various protection function. ? external components drastic reduction from former-model. applications ? smps for av equipments (lcd-tv and pdp etc.) ? smps for oa equipments (copier etc.) circuit confguration protection function ? overcurrent protection, overvoltage protection, low input voltage protection ? high-side mos short protection, overheat protection switching waveforms a multi chip power device for a multi-oscillated current resonant type converter type name mosfet control ic forming sample mass production vds rds (on) vcc (on) MP2B5038 500v 0.38 ? 11.6v f237 ready 2009/4 mp2b5052 500v 0.52 ? mp2b5085 500v 0.85 ? mp2b5150 500v 1.50 ? line-up
2009-4 information in this catalog is subject to change without notice. comparison of external components power effciency characteristic input power in the stand-by mode outline figure pin assignment pin symbol function 4.5 s1 mosfet (q1) source 6 is current detection 8 voc power supply 9 gnd gnd 10 vref reference voltage output 11 fb input feedback signal for constant voltage control 12 cs select the soft-start duration 13 bo brown out detection 14 vw q1 turn-on and off timing detection 16 vh start-up circuit 18,19 d1,s2 q1 drain q2 source 20 g2 q2 gate 22,23 d2 q2 drain 17 parts eliminated in total * comparison of primary-side circuit of our demo board output power vs effciency characteristic dc/dc 95.3%(input:385vdc, output:24vdc) pfc+dc/dc 88.4%(ac100v, output:24vdc) 90.7%(ac200v, output:24vdc) standby output power vs input power characteristic pfc+dc/dc 0.5w and below (ac240v, output:no load) 0.8w and below (ac240v, output:0.2w) * board with pfc (pfc is stopped in standby mode)
|
