2011/10 dip-8 str -a6000 series power ic for pwm type switching power supply with low noise and low standby power general descriptions the str-a6000 series products are power ics for swi tching power supplies, incorporating a power mosfet and a current-mode typ e pwm controller ic. the low standby power is accomplished by the automatic swit ching between the pwm operation in normal operation and the burst-oscillation under li ght load conditions. the product achieves high cost-performance power supply systems with few external components. features current-mode type pwm control built-in random switching function the function reduces the emi noise and enables a si mplified (low-cost) emi filter, by the slight- random-change of pmw frequency f osc . auto-standby function: the burst-oscillation enable s the low standby power. input power p in < 25mw at no load built-in startup circuit, enabling low power consum ption brown-in / brown-out function the function enables the oscillation start/stop by externally rated input voltage and makes protection s at low input voltage. overcurrent protection (ocp) with built-in input co mpensation circuit: the protection has less ac input voltage dependency . overload protection (olp) with built-in delay timer high speed latch release function the function releases the latch immediately at ac s upply off, after the latch protection operation. bias-assist function, reducing operating v cc voltage drop the function improves the startup operation and mak es a low v cc capacitor applicable. leading edge blanking function slope compensation function built-in avalanche energy guaranteed high-voltage p ower mosfet protections overcurrent protection (ocp)---------------------- ----------- pulse-by-pulse overload protection (olp) ------------------------ ------------ auto-restart overvoltage protection (ovp) --------------------- ----------- latch shutdown thermal shutdown protection (tsd) ---------------- -------- latch shutdown applications battery chargers; mobile phones, digital cameras, c amcorders, electric shavers, emergency/inducement l ights etc. standby power supplies; lcd-tvs, pdp-tvs, desk-top pcs, lbps, audio equipment, etc. small smpss; ink jet printers, bd/dvd players, cd p layers, set-top-boxes, etc. auxiliary power supplies for controllers; air condi tioners, refrigerators, washing machines, dish wash ers, etc product lineup product no operation frequency (khz) mosfet v dss min (v) r ds(on) max ( ? ) p out (note 1) 230vac/universal str-a6051m 67 650 3.95 16w / 12w str-a6052m 2.8 20w / 16w str-a6053m 1.9 24w / 20w str-a6059h 100 6.0 10w / 8w str-a6061h 700 3.95 13w/11w str-a6061hd 3.95 13w/11w str-a6062h 2.8 15w / 13w str-a6069h 6.0 10w / 8w str-a6079m 67 800 19.2 8w / 5w note 1: the maximum output power is derived from th ermal specifications. the actual output power may b e available around 120 C140% of the above values, res pectively, but may be limited by on duty setting on transformer design or lower output voltage.
sanken electric co.,ltd. warning the contents in this document are subject to change s, for improvement and other purposes, without noti ce. make sure that this is the latest version of the do cument before use. the operation and circuit examples in this document are provided for reference purposes only. sanken a ssumes no liability for violation of industrial pro perty, intellectual property, or other rights of sanken or third parties, that stem from these examp les. the user must take responsibility for considering a nd determining which objects the products in this d ocument are used with. although sanken will continue to improve the qualit y and reliability of its products, semiconductor products, by their nature, have certa in fault and failure rates. the user must take resp onsibility for designing and checking to secure the device and system so that a part failure may not l ead to human injury, fire, damages, or other losses. the contents in this document must not be transcrib ed or copied without sankens written consent. 2011/10 typical application circuit typical electrical characteristics str-a6079m efficiency & input power at standby s ss st tt tr rr r- -- -a aa a6 66 60 00 00 00 00 00 0 d dd d/ // /s ss st tt t d dd d/ // /s ss st tt t v vv vc cc cc cc c 8 88 8 7 77 7 5 55 5 b bb br rr r s ss s/ // /o oo oc cc cp pp p 1 11 1 2 22 2 3 33 3 4 44 4 g gg gn nn nd dd d o oo ol ll lp pp p f ff fb bb b/ // / v vv v o oo ou uu ut tt t g gg gn nn nd dd d v vv va aa ac cc c 100vac 220vac output power p out (w) efficiency (%) 20 30 40 50 60 70 80 90 0 2 4 6 without brown-in/brown-out detection resistor 0 50 100 150 200 250 0 50 100 150 standby power (p out : 5w power supply) output power p out (mw) at no load 19.6mw 100vac 20.0mw 220vac 100vac 220vac efficiency output power p out input power p in (mw)
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