innovative power tm - 1 - www.active-semi.com copyright ? 2012 active-semi, inc. activepsr tm is a trademark of active-semi. activepsr tm quasi-resonant pwm controller features ? patented primary side regulation technology ? quasi-resonant operation ? adjustable up to 120khz switching frequency ? +/-5% output voltage regulation ? accurate ocp/olp protection ? integrated output cord compensation ? integrated line and primary inductance compensation ? built-in soft-start circuit ? line under-voltage, thermal, output over- voltage, output short protections ? current sense resistor short protection ? transformer short winding protection ? 100mw standby power ? complies with global energy efficiency and cec average efficiency standards ? tiny sot23-6 packages applications ? ac/dc adaptors/chargers for cell phones, adsl, pdas, e-books ? adaptors for portable media player, dscs, and other general description the act41x is a high performance peak current mode pwm controller which applies activepsr tm and activeqr tm technology. act41x achieves accurate voltage regulation without the need of an opto-coupler or reference device. the act41x is designed to achieve less than 100mw standby power. by applying frequency fold back and activeqr tm technology, act41x exceeds the latest es2.0 efficiency standard. act41x integrates comprehensive protection. in case of over temperature, over voltage, short winding, short current sense resistor, open loop and overload conditions, it would enter auto restart mode including cycle-by-cycle current limiting. act41x is to achieve no overshoot and very short rise time even with big capacitive load (4000f) with the built-in fast and soft start process, . the quasi-resonant (qr) operation mode can effectively improve efficiency, reduce the emi noise and further reduce the components in input filter. act41x is idea for application up to 36 watt. figure 1: simplified application circuit act41x product brief, 06-dec-12
act41x product brief, 06-dec-12 innovative power tm - 2 - www.active-semi.com copyright ? 2012 active-semi, inc. activepsr tm is a trademark of active-semi. pin configuration pin descriptions part number temperature range package pins packing method option (dc cord %) act410us-t -40c to 85c sot23-6 6 tube & reel 0 top mark fryh ACT411US-T -40c to 85c sot23-6 6 tube & reel 0 fryt sot23-6 act410us ordering information pin name description 1 cs current sense pin. connect an external resistor (r cs ) between this pin and ground to set peak current limit for the primary switch. 2 gnd ground. 3 gate gate drive. gate driver fo r the external mosfet transistor. 4 vdd power supply. this pin provides bias power fo r the ic during startup an d steady state operation. 5 fb feedback pin. connect this pin to a resist or divider network from the auxiliary winding. 6 comp compensation pin. sot23-6 act411us
act41x product brief, 06-dec-12 innovative power tm - 3 - www.active-semi.com copyright ? 2012 active-semi, inc. activepsr tm is a trademark of active-semi. item reference description qty manufacturer 1 u1 ic, act410,sot23-6 1 active-semi. 2 c1,c2 capacitor, electrolytic, 10f/400v, 10x15mm 2 ksc 3 c3 capacitor, ceramic, 1000pf/500v, 0805,smd 1 poe 4 c4 capacitor, electrolyt ic,10f/35v,5x11mm 1 ksc 5 c6,c7 capacitor, electrolytic, 820f/6.3v, 6.3 16mm 2 ksc 6 c8 capacitor, ceramic, 0.1f/25v, 0805,smd 1 poe 7 c9 capacitor, ceramic, 1000pf/100v, 0805,smd 1 poe 8 cy1 safety y1,capacitor,1000pf/400v,dip 1 uxt 9 bd1 bridge rectifier,d1010s,1000v/1.0a,sdip 1 panjit 10 d2,d3 fast recovery rectifier, rs1m,1000v/1.0a, rma 2 panjit 11 d4 diode, schottky, 45v/ 10a, s10u45s, smd 1 vishay 12 d5 diode, 1n4148 smd 1 panjit 13 l1 axial inductor, 1.5mh, 5*7,dip 1 soka 14 l2 axial inductor, 0.55*5t, 5*7,dip 1 soka 15 q1 mosfet transistor, 2n60,to-251 1 infineon 16 pcb1 pcb, l*w*t=40x28x1. 6mm,cem-1,rev:a 1 jintong 17 fr1 fuse,1a/250v 1 ty-ohm 18 r2 carbon resistor, 200k ? , 1206, 5% 1 ty-ohm 19 r3 chip resistor, 100 ? , 0805, 5% 1 ty-ohm 20 r1,r4,r13 chip resistor, 22 ? , 0805, 5% 1 ty-ohm 21 r5 chip resistor, 68k ? , 0805,1% 1 ty-ohm 22 r6 chip resistor, 11.5k ? , 0805, 1% 1 ty-ohm 23 r7 chip resistor, 1.5m ? , 0805 , 5% 1 ty-ohm 24 r8 chip resistor, 1m ? , 0805 , 5% 1 ty-ohm 25 r9 chip resistor, 1.1 ? , 1206,1% 1 ty-ohm 26 r10 chip resistor, 240 ? , 0805 , 5% 1 ty-ohm 27 r11,r12 chip resistor, 3k ? , 0805 , 5% 2 ty-ohm 28 r14 chip resistor, 100k ? , 0805, 5% 1 ty-ohm 29 t1 transformer, lp=0.37mh, efd15 1 table 1: act410 bill of materials figure 2: act410, universal vac input, 5v/2a output charger
act41x product brief, 06-dec-12 innovative power tm - 4 - www.active-semi.com copyright ? 2012 active-semi, inc. activepsr tm is a trademark of active-semi. item reference description qty manufacturer 1 u1 ic, act411,sot23-6 1 active-semi. 2 c1,c2 capacitor, electrolytic, 10f/400v, 10x15mm 2 ksc 3 c3 capacitor, ceramic, 1000pf/500v, 0805,smd 1 poe 4 c4 capacitor, electrolyt ic,10f/35v,5x11mm 1 ksc 5 c5,c6 capacitor, electrolytic, 470f/16v, 8x11.5mm 2 ksc 6 c8 capacitor, ceramic, 0.1f/25v, 0805,smd 1 poe 7 c9 capacitor, ceramic, 1000pf/100v, 0805,smd 1 poe 8 cy1 safety y1,capacitor,1000pf/400v,dip 1 uxt 9 d1-d4 diode,rectifier,1000v/1a,1n4007, do-41 4 good-ark 10 d5 fast recovery rectifier, rs1m,1000v/1.0a, rma 1 panjit 11 d6 fast recovery rectifie r,rs1d,200v/1.0a,sma 1 panjit 12 d7 diode, 1n4148 smd 1 panjit 13 d8 diode, schottky, 100v/5a, sb5100, do-47 1 good-ark 14 l1 axial inductor, 1.5mh, 5*7,dip 1 soka 15 l2 axial inductor, 0.55*5t, 5*7,dip 1 soka 16 q1 mosfet transistor, 4n60,to-220 1 infineon 17 pcb1 pcb, l*w*t=52.2x30x 1.6mm,cem-1,rev:a 1 jintong 18 fr1 fuse,1a/250v 1 ty-ohm 19 r2 carbon resistor, 200k ? , 1206, 5% 1 ty-ohm 20 r3 chip resistor, 100 ? , 0805, 5% 1 ty-ohm 21 r1,r4,r13 chip resistor, 22 ? , 0805, 5% 3 ty-ohm 22 r5 chip resistor, 91k ? , 0805,1% 1 ty-ohm 23 r6 chip resistor, 15.8k ? , 0805, 1% 1 ty-ohm 24 r7,r8 chip resistor, 1m ? , 0805 , 5% 2 ty-ohm 25 r9 chip resistor, 1.24 ? , 1206,1% 1 ty-ohm 26 r10 chip resistor, 200 ? , 0805 , 5% 1 ty-ohm 27 r11 chip resistor, 7k ? , 0805, 5% 1 ty-ohm 28 r12 chip resistor, 3k ? , 0805 , 5% 1 ty-ohm 29 t1 transformer, lp=0.4mh, ee16 1 table 2: act411 bill of materials figure 3: act411, universal vac input, 12v/1a output charger
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