dip-16 SSC9502 controller ic for current resonant type switching power supply with half-bridge resonance, high efficiency and low noise general descriptions the SSC9502 is a controller ic, incorporating a floating drive circuit for half-bridge type resonance. the product achieves high efficiency and low noise power supply systems by the zvs and zcs. the product is recommended for high-efficiency small and standardized power supplies because of easy circuit designs with few external components. features z soft-switched multi-resonant zero current switch (smz) the zero-current switching (zsc) and zero-voltage switchi ng (zvs) of half-bridge type resonance achieve the high efficiency and low noise systems. z automatic dead time adjustment function for wide resonant conditions z burst-oscillation function the function enables the stable output control at no load to light load conditions and improves the efficiency. z soft-start function z brown-in / brown-out function the function enables the oscillation start /stop by extern ally rated input voltage a nd makes protections at low input voltage. z external latch protection (elp) the function enables the latch shutdown by external signal. z various protections overcurrent protection (ocp) ---------------------------------auto-restart three-step protections depending on overcurrent status overload protection (o lp)-------------------------------------latch shutdown overvoltage protection (ovp)---------------------------------latch shutdown external latch protecti on (elp) ------------------------------latch shutdown thermal shutdown protecti on (tsd)-------------------------latch shutdown applications switching power supplies for digital consumer equipment; lcd-tvs, pdp-tvs, etc., oa equipment; severs, multi-function printers, etc., industry machines, communication devices, others free datasheet http:///
sanken electric co.,ltd. warning z the contents in this document are subject to change s, for improvement and othe r purposes, without notice. make sure that this is the latest version of the document before use. z the operation and circuit examples in this document are provided for reference purposes only. sanken assumes no liability for v iolation of industrial prope rty, intellectual property, or other rights of sanken or third parties, that stem from these examples. z the user must take responsibility for cons idering and determining which objects the pr oducts in this document are used with. z although sanken will con tinue to improve the quality a nd reliability of its products, semiconductor products, by their natu re, have certain fault and failure rates. the user must take responsibility for designing and checking to secure the device and system so that a part failure may not lead to human injury, fire, damages, or other losses. z the contents in this document must not be transc ribed or copied without sanken?s written consent. typical application circuit typical electrical characteristics and operation waveforms power supply characteristics input : dc380v, output : 24v/8.5a (204w), with power mosfet r ds(on) : 0.56 ? $ j 7 # / $
/ $
7 ( - 7 4 7 ( ) $ 0 . ' # 3 $ 0 $ ( / % 7 d d 3 f h $ 4 4 3 7 4 4 $ $ w 7 t f o ( / % 1 p x f s 4 v q q m z " v y j m j b s z 7 * / 7 0 6 5 no load heavy load 2us/d v ds (lo-side) 200v/d 2a/d i d (hi-side) efficiency (%) efficiency output power p out output power p out (w)
|
