innovative power tm - 1 - www.active-semi.com copyright ? 2011 active-semi, inc. activepsr tm is a trademark of active-semi. high performance activepsr tm primary switching regulator features ? ultra low standby power < 30mw ? patented primary side regulation technology ? suitable operation frequency up to 85khz ? proprietary fast startup circuit ? integrated line and primary inductance compensation ? integrated programmable output cord resistance compensation ? line under-voltage, output over-voltage, output short-circuit and over-temperature protection ? complies with all global energy efficiency and cec average efficiency standards ? adjustable power from 2w to 6.3w ? minimum external components ? sop-8 package applications ? chargers for cell phones, pdas, mp3, portable media players, dscs, and other portable devices and appliances ? rcc adapter replacements ? linear adapter replacements ? standby and auxiliary supplies general description the act336 belongs to the high performance patented activepsr tm family of universal-input ac/dc off-line controllers for battery charger and adapter applications. it is designed for flyback topology working in discontinuous conduction mode (dcm). the act336 meets all of the global energy efficiency regulations (cec, european blue angel, and us energy star standards) while using very few external components. the act336 ensures safe operation with complete protection against all fault conditions. built-in protection circuitry is provided for output short- circuit, output over-volt age, line under-voltage, and over temperature conditions. the act336 activepsr tm is optimized for high performance, cost-sensitive applications, and utilizes active-semi?s pr oprietary primary-side feedback architecture to provide accurate constant voltage, constant current (cv/cc) regulation without the need of an opto-coupler or reference device. integrated line and primary inductance compensation circuitry provides accurate constant current operation despite wide variations in line voltage and primary inductance. integrated output cord resistance compensation further enhances output accuracy. the act336 achieves excellent regulation and transient response, yet requires less than 30mw of standby power. the act336 is optimized for compact size 2w to 6.3w charger applications. it is available in space- saving 8 pin sop-8 package. figure 1: simplified application circuit act336 product brief, 15-apr-11 ?
act336 product brief, 15-apr-11 innovative power tm - 2 - www.active-semi.com copyright ? 2011 active-semi, inc. ? pin configuration pin descriptions part number temperature range package pins packing method top mark ACT336SH-T -40c to 85c sop-8 8 tape & reel act336sh pin name description sop-8 1 sw switch drive. switch node for the external npn transistor. connect this pin to the external power npn?s emitter. this pin also supplies current to vdd during startup. 2,4,7 g ground(2,4 and 7 pin mu st be connected together). 8 bd base drive. base driver fo r the external npn transistor. 6 vdd power supply. this pin provides bias powe r for the ic during st artup and steady state operation. 5 fb feedback pin. connect this pin to a resist or divider network from the auxiliary winding. 3 cs current sense pin. connect an external resistor (r cs ) between this pin and ground to set peak current limit for the primary switch. the peak current limit is set by (0.396v 0.9) / r cs . for more detailed information, see application information. ordering information sop-8 act336sh act336sh act336 product brief, 15-apr-11 ?
act336 product brief, 15-apr-11 innovative power tm - 3 - www.active-semi.com copyright ? 2011 active-semi, inc. ? figure 6: universal vac input, 5v/1.2a output charger item reference description qty manufacturer 1 c1,c2 capacitor, electrolytic, 6.8uf/400v, 10x12mm 2 koshin 2 c3 capacitor, ceramic,220pf/500v,1206,smd 1 poe 3 c4 capacitor, ceramic,4.7uf/35v,1206,smd 1 poe 4 c5,c6 capacitor, electrolytic, 680uf/10v, 8x12mm 2 g-luxon 5 c9 capacitor, ceramic,1000pf/50v, 0805, smd 1 poe 6 d1-d4 diode,rectifier,1000v/1 a,1n4007, do-41 4 good-ark 7 d5,d6 diode,ultra fast, fr107,1000v/1.0a, do-41 2 good-ark 8 d8 diode, schottky, 40v/5 a, sb540, do-15 1 good-ark 9 l1 axial inductor, 1.5mh, 0410,dip 1 amode tech 10 q1 transistor, hfe 20-25, npn,13003,to-220 1 huawei 11 fr1 wire round resistor,1w,10 ohm,knp, 5% 1 ty-ohm 12 r2 chip resistor, 1.0m ohm, 1206, 5% 1 ty-ohm 13 r3 chip resistor, 100 ohm, 0805, 5% 1 ty-ohm 14 r1,r4 chip resistor, 22 ohm, 0805, 5% 2 ty-ohm 15 r5 chip resistor, 57.6k ohm, 0805,1% 1 ty-ohm 16 r6 chip resistor, 11k ohm, 0805, 1% 1 ty-ohm 17 r7,r8 chip resistor, 15m ohm, 1206, 5% 2 ty-ohm 18 r9 chip resistor, 0.909ohm, 1206,1% 1 ty-ohm 19 r10 chip resistor, 80k ohm, 0805, 5% 1 ty-ohm 20 r11 chip resistor, 3.3k ohm, 0805, 5% 1 ty-ohm 21 r13 chip resistor, 10 ohm, 0805, 5% 1 ty-ohm 22 t1 transformer, lp=1.5mh, ee16 1 23 u1 ic, act336,sop-8 1 active-semi table 1: act336 bill of materials
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