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EV4031-S-00A 108vac~305vac, 30v/530ma primary-side-control with active pfc triac and analog dimmable led driver evb EV4031-S-00A rev.1.01 www.monolithicpower.com 1 11/25/2014 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. the future of analog ic technology description the EV4031-S-00A evaluation board is designed to demonstrate the capabilities of mp4031. the mp4031 is a primary-side-control offline led lighting cont roller which can achieve high power factor and accurate current for either triac dimmable or analog dimmable led lighting application. it works in boundary conduction mode for reducing the mosfet and diode switching losses. the EV4031-S-00A is typically designed for either driving a 16w triac dimmable led bulb with 30v typ , 530ma led load at 108v- 132vac/60hz or driving a 16w analog dimmable led bulb with 30v typ , 530ma led load at 108-305vac. the EV4031-S-00A has an excellent efficiency, can pass 3kv surge test, and meets iec61000- 3-2 class c harmonics and en55015 conducted emi requirements. it has multi- protection function as ov er-voltage protection, over-current protection, cycle by cycle current limit, etc. electrical specification parameter symbol value units input voltage (triac dimmable) 108 to 132 vac input voltage (analog dimmable) v in 108 to 305 vac output voltage v out 30 v led current i led 530 ma output power p out 16 w efficiency (full load) >82 % power factor pf >0.9 thd thd <20 % features ? fast start up ? triac dimmable, with 1% to 100% dimming range and the dimming curve meets standard ssl6 ? analog-dimmable ? real current control without secondary- feedback circuit ? unique architecture for superior line regulation ? high power factor>0.9 over 108vac to 305vac ? boundary conduction mode improves efficiency ? input uvlo ? cycle-by-cycle current limit ? over-voltage protection (ovp) ? over-current protection (ocp) ? over-temperature protection (otp) ? fit inside par38 bulb enclosure applications ? solid state lighting ? industrial & commercial lighting ? residential lighting all mps parts are lead-free and adhere to the rohs directive. for mps green status, please visit mps website under quality assurance. ?mps? and ?the future of analog ic technology?, are registered trademarks o f monolithic power systems, inc. warning: although this board is designed to satisfy safety requirements, the engineering prototype has not been agency approved. therefore, all testing should be performed using an isolation transformer to provide the ac input to the prototype board.
EV4031-S-00A ? triac and analog dimmable 16w psr with pfc led driver EV4031-S-00A rev.1.01 www.monolithicpower.com 2 11/25/2014 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. EV4031-S-00A evaluation board (l x w x h) 86mm x 30mm x 29mm board number mps ic number EV4031-S-00A mp4031gs evaluation board schematic cx1 df06s db1 l1 bav21w d7 mbrs3200t3g d2 l n r9 led+ led- gnd gnd cy1 c2 wsgc10mh d3 r10 c9 5.1k/1206 r14 5.1k/1206 r13 1k r1 330/2w r12 10 r5 r3 100nf/400v c3 c4 1n4148ws d1 450v/0.2a q1 ssn1n45bta mmbt3906lt1 q3 bzt52c15 d4 gnd gnd r17 r18 r20 gnd r15 gnd 470k/1w r6 1n4148ws 1 d5 bzt52c16 d6 gnd cef04n7g q2 30v/500ma 108-305vac 95ts 25ts 20ts f1 tvr10431 rv1 gnd 3 1 4 6 11 7 pq2020 t1 250v/2a c1 200v/0.2a 700v/4a 1kv/1a 200v/3a c10 1n4148ws d8 10k/0.25w r21 r16 600v/1.5a 51/1206 r11 499k/1206 r2 470pf/1kv/1206 c11 c8 l2 l3 r8 510/2w r7 510/2w r4 c7 200/1206 r22 r23 mult 1 zcd 2 vcc 3 cs 4 s 5 d 6 gnd 7 comp 8 mp4031 u1 r19 r30 gnd 1kv/1a c12 499k//1206 r26 499k/1206 r25 r27 r28 mmbt3904lt1 q4 40v/200ma 3.92k r29 c5 c6 10pf/50v c13 1n4148ws d9 1n5383b d12 bzt52c27 d11 gnd bav21w d13 51/1206 r32 c14 gnd mmbt3904lt1 q5 c16 10k r33 tl431 u3 r34 r35 gnd u2 ns agnd c17 gnd r36 150k r37 1k r38 40v/200ma 10v c15 dimming signal wsgc10mh d10 499k/1206 r31 499k/1206 r24 figure 1?schematic
EV4031-S-00A ? triac and analog dimmable 16w psr with pfc led driver EV4031-S-00A rev.1.01 www.monolithicpower.com 3 11/25/2014 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. pcb layout figure 2?top layer figure 3?bottom layer
EV4031-S-00A ? triac and analog dimmable 16w psr with pfc led driver EV4031-S-00A rev.1.01 www.monolithicpower.com 4 11/25/2014 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. circuit description the EV4031-S-00A is configured in a single- stage flyback topology, it uses primary-side- control which can mostly simplify the schematic and get a cost effective bom. it can also achieve high power factor and accurate led current. f1, l1, l2, l3, r1, r14, r13 cx1, db1, and c1 compose the input stage. f1 fuses the ac input to protect for the component failure or some excessive short events. l1, l2, l3, r1, r14, cx1, r13 and c1 associated with cy1 form the emi filter which can meet the standard en55015. the diode rectifier db1 rectifies the input line voltage. small bulk cbb capacitor c1 is used as a low impedance path for the primary switching current, to maintain high power factor, the capacitance of c1 should be selected with low value. rv1 d10, r25, r26, r27, c12 are used for surge test. rv1 can make sure the circuit pass 500v surge test, for higher level test, a rcd snubber composed of d10, r25, r26, r27 and c12 is needed. r3, r8, r5, r23, c4, c11, d1, d4, q1, q3 with r12 compose the damping circuit for reducing the inrush current at the dimmer turning on time. the circuit let the inrush current flow through r12 at first when triac dimmer turns on. then q1 turns on and shorts r12, this can save power from r12. q3 is used to discharge c4 when the triac is off. d4 is used to clamp the gate voltage of q1 to 15v. r4, r7, c3 are used as a bleeder circuit which keeping the triac current above the minimum holding current after triac turns on. r10, r17, c9 provide sine wave reference for the primary peak current to get an active pfc function. r28 and q4 parallels r29 with r17, when the input voltage is high, which make sure the mult pin voltage lower than the max voltage rating, and improves th e line regulation in wide input voltage range application. d12, r24, r31 are used to improve the thd performance at high side input, which is useful in wide input voltage range application. r11, d7, c10, d11 are used to supply power for mp4031. a 47 f bulk capacitor c10 is selected to maintain the supply voltage. at start-up, c10 is first charged up through the external mosfet q2 and internal chargi ng circuit, when the vcc voltage reaches 10v, the in ternal charging circuit stops charging and the control logic works. then the power supply is tak en over by the auxiliary winding through r11, d7. r6, c7, d6 and d5 are used for the gate drive of the external mosfet q2. r15, r16, c13, d9 are used to detect the auxiliary winding to get the transformer magnetizing current zero crossing signal for realizing the boundary c onduction operation, and also monitor the output ovp condition. the ovp voltage is set by the divider ratio of r15, r16. r21 and d8 are used to restrain the oscillation between the leakage inductor and the parasitical capacitor when ovp happens. if the oscillation happens, the external mosfet will be turned on/off abnormally and the part can?t work in auto restart mode. u2 is an optocoupler which optically couples the pwm dimming signal from the secondary side to the primary side. r36, r37, r38, and c17 convert the pwm signal into an analog signal, which is divided by r30 and r19, then put into cs pin. d13, r32, c14, q5, r33, c15, u3, r34, r35, c16 compose a ldo, which is the power supply for optocoupler. r18, r20 are primary sensing resistors for primary side current control. the value of r18, r20 set the output led current. c2, r2, r22, d3 are used to damp the leakage inductance energy so the drain voltage can be suppressed at a safe level. diode d2 rectifies the secondary winding voltage and the capacitor c5, c6 are the output filter. the resistor r9 is placed as pre-load to limit the output voltage rise too high in open load condition.
EV4031-S-00A ? triac and analog dimmable 16w psr with pfc led driver EV4031-S-00A rev.1.01 www.monolithicpower.com 5 11/25/2014 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. EV4031-S-00A bill of materials qty ref value description package manufacture part number 1 c1 100nf ceramic capacitor; 630v;10% dip fala c312j104k63cc30 1 c2 22nf ceramic capacitor; 630v;x7r;1206 1206 tdk c3216x7r2j223k 1 c3 100nf capacitor;400v; cbb dip panasonic ecqe4104kf 1 c4 22nf ceramic capacitor; 50v;x7r;0603; 0603 murata grm188r71h223ka01d 2 c5,c6 470 f electrolytic capacitor; 50v;electrolytic dip jianghai cd263-50v470 1 c7 1 f ceramic capacitor; 25v;x7r;0603 0603 murata grm188r71e105ka12d 1 c8 2.2 f ceramic capacitor; 10v;x7r;0603 0603 murata grm188r71a225ke15d 1 c9 2.2nf ceramic capacitor; 50v;x7r;0603; 0603 tdk c1608x7r1h222k 1 c10 47 f electrolytic capacitor; 50v;electrolytic dip jianghai cd263-50v47 1 c11 470pf ceramic capacitor; 1kv;1206 1206 murata grm31b7u3a471jw31l 1 c12 3.3 f electrolytic capacitor; 450v;electrolytic dip langrui px 450v/3.3uf 1 c13 10pf ceramic capacitor; 50v;x7r;0603; 0603 murata grm1885c1h100ja01 1 c14 2.2 f ceramic capacitor; 50v;x7r;1206; 1206 murata gj8319r61h225k 1 c15 100nf ceramic capacitor; 25v;x7r;0603; 0603 murata grm188r71e104ka01d 2 c16, c17 4.7 f ceramic capacitor; 25v;x7r;1206; 1206 murata grm31cr71e475ka88l 1 cx1 22nf capacitor;275v;10% dip carli px223k3ib19l270d9r 1 cy1 2.2nf capacitor;4000v; 20% dip hongke jnk12e222my02n 4 d1,d5, d8,d9 1n4148ws diode;75v;0.15a; sod-323 diodes 1n4148ws-7-f 1 d2 mbrs320t3g diode;200v;3a smb qianlongxin mbrs320t3g 2 d3, d10 wsgc10mh diode;1000v;1a 1206 maxmega wsgc10mh 1 d4 bzt52c15 zener diode; 15v;5ma/500mw; sod-123 diodes bzt52c15 1 d6 bzt52c16 zener diode; 16v;5ma/500mw; sod-123 diodes bzt52c16 2 d7, d13 bav21w diode;200v;0.2a; so d-123 diodes bav21w-7-f 1 d11 bzt52c27 zener diode; 27v;5ma/500mw; sod-123 diodes bzt52c27 1 d12 1n5383b zener diode; 150v;5w; dip bangdayuan 1n5383b 1 db1 df06s diode;600v;1.5a smd fairchild df06s
EV4031-S-00A ? triac and analog dimmable 16w psr with pfc led driver EV4031-S-00A rev.1.01 www.monolithicpower.com 6 11/25/2014 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. EV4031-S-00A bill of materials (continued) qty ref value description package manufacture part number 1 f1 ss-5-2a fuse;250v;2a dip cooper bussmann ss-5-2a 1 l1 1mh inductor;1000uh; 2.08 ohm;0.5a dip wurth 768772102 2 l2,l3 2.2mh inductor;2.2mh;4.73 ohm;0.3a dip wurth 7447720222 1 q1 ssn1n45bta n-channel mosfet; 450v; to-92 fairchild ssn1n45bta 1 q2 cef04n7g mosfet;700v;4a to-220f maxmega cef04n7g 1 q3 mmbt3906lt1 transistor;-40v;-0.2a; sot-23 on semi mmbt3906lt1 2 q4,q5 mmbt3904lt1 transistor;40v;0.2a; sot-23 on semi mmbt3904lt1 2 r1,r19 1k ? film resistor; 1%;1/4w 1206 hottechohm ri1206l1001ft 2 r13, r14 5.1k ? resistor;1%;1/4w 1206 yageo rc1206fr-075k1l 5 r2, r24, r25, r26, r31 499k ? film resistor;1%; 1206 yageo rc1206fr-07499kl 2 r3,r10 1m ? resistor;1%;1/4w dip any 1m ohm 2 r4,r7 510 ? resistor;5%;2w dip any 510 ohm/2w 1 r5 10 ? film resistor;1%; 0603 yageo rc0603fr-0710rl 1 r6 470k ? resistor;5%;1w dip any 470k ohm 1 r8 200k ? film resistor;1% 0603 yageo rc0603jr-07200kl 1 r9 30k ? resistor;1% 1206 yageo rc1206fr-0730kl 2 r11, r32 51 ? film resistor;1% 1206 yageo rc1206fr-0751rl 1 r12 330 ? resistor;5%;2w dip any 330 ohm/ 2w 1 r15 25.5k ? film resistor;1%; 0603 yageo rc0603fr-0725k5l 2 r16, r17 5.9k ? film resistor;1% 0603 yageo rc0603fr-075k9l 1 r18 300m ? resistor;1% 1206 yageo rl1206fr-070r3l 1 r20 1.1 ? resistor;1% 1206 yageo rc1206fr-071r1l 1 r21 10k ? resistor;5% 1206 yageo rm12jtn103 1 r22 200 ? resistor;5% 1206 yageo rc1206fr-07200rl 4 r23, r30, r33, r38 10k ? film resistor;1% 0603 yageo rc0603fr-0710kl 1 r27 2.43k ? film resistor;1% 0603 yageo rc0603fr-072k43l 1 r28 68k ? film resistor;1% 0603 yageo rc0603fr-0768kl 1 r29 3.92k ? film resistor;1% 0603 yageo rc0603fr-073k92l 1 r34 75k ? film resistor;1% 0603 yageo rc0603fr-0775kl 1 r35 24k ? film resistor;1% 0603 yageo rc0603fr-0724kl
EV4031-S-00A ? triac and analog dimmable 16w psr with pfc led driver EV4031-S-00A rev.1.01 www.monolithicpower.com 7 11/25/2014 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. EV4031-S-00A bill of materials (continued) qty ref value description package manufacture part number 1 r36 2.1k ? film resistor;1% 0603 yageo rc0603fr-072k1l 1 r37 150k ? film resistor;1% 0603 yageo rc0603jr-07150kl 1 r38 1k ? film resistor;1% 0603 yageo rc0603fr-071kl 1 rv1 tvr10431 thermal r dip tsk tvr10431ksy 1 t1 fx0302 pq2020 l=1.74mh, np:ns:naux=95:25:20 dip emei fx0302 1 u1 mp4031gs traic dimmable, analog dimmable, offline led lighting controller soic8 mps mp4031gs-z 1 u2 ns 1 u3 cj431 cj431;2.5v sot-23 changdian cj431
EV4031-S-00A ? triac and analog dimmable 16w psr with pfc led driver EV4031-S-00A rev.1.01 www.monolithicpower.com 8 11/25/2014 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. transformer specification electrical diagram figure 4?transformer electrical diagram notes: 1. don?t connect y to any pin of bobbin. 2. e 1 is one layer of cooper foil applied to core, and connected to pin3 by a wire. winding diagram 2 9 12 6 6 1 y 3 4 3 figure 5?winding diagram teflon tube sec. side n 1 2 1 n 3 12 winding start pri. side 9 n 4 3 4 t.i.w 3 6 n 5 n 2 y 3 e 1 : cooper foil
EV4031-S-00A ? triac and analog dimmable 16w psr with pfc led driver EV4031-S-00A rev.1.01 www.monolithicpower.com 9 11/25/2014 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. winding order winding no. tape layer number start & end magnet wire (mm) turns n 1 2 2 6 0.23mm * 1 47 n 2 2 3 y 0.15mm * 1 one layer n 3 2 12 9 0.30mm * 2 (t.i.w) 25 n 4 2 4 3 0.15mm * 1 20 n 5 3 6 1 0.23mm * 1 48 e 1 3 one layer cooper foil electrical specifications 60 second, 60hz, from pri. to sec. 2500vac 60 second, 60hz, from pri. to core. 1000vac electrical strength 60 second, 60hz, from sec. to core. 1000vac primary inductance pins 1 - 2, all other windings open, measured at 60khz, 0.1 vrms 1.74mh5% primary leakage inductance pins 1 - 2 with all other pins shorted, measured at 100khz. 0.1 vrms 45 h (max) materials item description 1 core: pq2020, ui=240025%, al=3000nh/n 2 25% ungapped, al=192.7nh/n 2 3% gapped sunshine: pq2020, ssp- 4 or equivalent 2 bobbin: pq202020, 6+8pin rmmove pin5,6 ,7,8,11 1sect tht375 j ul94v-0 chang chun plastics co ltd ruiqidaneng 3 wire: 0.23mm/ 0.15mm,, uew, tai-i electric wi re&cable co.,ltd or equivalent 4 triple insulation wire: 0.30mm,trw(b) great leoflon industrial co.,ltd or equivalent 5 tfl tube: awg#20/30, clear grea t holding industrial co ltd 7 cooper foil: 5.0x0.025mm(th) dongguan city rongqiang electronics or equivalent 8 tape: 12mm(w)0.06mm yellow, jingjiang yah ua presure sensitive glue co.,ltd ct-280 9 varnish: john c. dolph co, bc-346a or equivalent 10 solder bar: cheng nan: sn99.5/cu0.5 or equivalent
EV4031-S-00A ? triac and analog dimmable 16w psr with pfc led driver EV4031-S-00A rev.1.01 www.monolithicpower.com 10 11/25/2014 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. evb test results performance data efficiency, pf and thd f (hz) vin(v) pin(w) vout(v) iout(ma) pout(w) efficiency(%) pf thd(%) 108 19.11 29.83 529 15.78007 82.6 0.991 11.60 110 19.05 29.83 529 15.78007 82.8 0.991 11.70 120 18.69 29.81 527 15.70987 84.1 0.989 12.40 130 18.37 29.8 526 15.6748 85.3 0.989 12.80 60 140 18.17 29.79 524 15.60996 85.9 0.988 13.00 f (hz) vin(v) pin(w) vo(v) io(ma) po(w) efficiency(%) pf thd(%) 185 17.81 29.77 522 15.53994 87.3 0.974 15.30 190 17.78 29.76 522 15.53472 87.4 0.973 15.40 200 17.79 29.76 522 15.53472 87.3 0.970 15.60 210 17.80 29.76 522 15.53472 87.3 0.965 15.80 220 17.82 29.75 522 15.5295 87.1 0.961 16.40 230 17.88 29.74 522 15.52428 86.8 0.955 16.80 240 17.92 29.74 522 15.52428 86.6 0.950 17.90 250 18.01 29.75 522 15.5295 86.2 0.944 18.10 260 18.08 29.75 522 15.5295 85.9 0.937 18.60 270 18.16 29.74 523 15.55402 85.6 0.930 18.70 280 18.24 29.74 523 15.55402 85.3 0.923 18.80 290 18.32 29.74 523 15.55402 84.9 0.916 18.90 50 300 18.44 29.74 524 15.58376 84.5 0.909 19.00
EV4031-S-00A ? triac and analog dimmable 16w psr with pfc led driver EV4031-S-00A rev.1.01 www.monolithicpower.com 11 11/25/2014 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. triac dimming compatibility (no flicker with these 25 different dimmers) manufacturer part no. power stage dimming type io_max (ma) io_min (ma) dimming ratio (%) min start current (ma) lutron 6b38-dvlv-600p 600w leading 445 1 0.22 2 lutron 6b38-dv-603pg 600w leading 309 1 0.32 3 lutron 6b38-s-600p 600w leading 445 0 0.00 2 lutron 6b38-s-603pg 600w leading 306 0 0.00 2 lutron s-600 600w leading 520 0 0.00 8 lutron 6b38 600w leading 463 2 0.43 7 lutron ay-600p 600w leading 430 4 0.93 13 lutron 6b38 400w leading 427 0 0.00 47 lutron tg-603gh-wh 600w leading 275 4 1.45 12 lutron tg-600ph-wh 600w leading 459 6 1.31 12 lutron gls01-c06570 600w leading 318 0 0.00 48 leviton 6633-p 600w leading 514 0 0.00 7 lutron 6b38-q-600p 600w leading 470 5 1.06 17 leviton 6633-p 600w leading 517 0 0.00 9 lutron 6b38-dv-600p 600w leading 437 0 0.00 2 cooper 6b28 600w leading 502 0 0.00 49 leviton 1l10o5 600w leading 472 0 0.00 13 lutron lg600p 600w leading 459 1 0.22 1 leviton 1g40o5 600w leading 469 0 0.00 17 leviton c20-6684-iw 600w leading 531 0 0.00 32 lutron q-600p-iv 600w leading 482 7 1.45 12 lutron dv-600p-br 600w leading 449 1 0.22 7 lutron dvpdc-203p-wh 200w leading 514 51 9.92 50 lutron ay-600p-la 600w leading 519 11 2.12 11 lutron gl-600h-dk 600w leading 517 0 0.00 4
EV4031-S-00A ? triac and analog dimmable 16w psr with pfc led driver EV4031-S-00A rev.1.01 www.monolithicpower.com 12 11/25/2014 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. electric strength test primary circuit to secondary circ uit electric strength testing was completed according to iec61347-1 and iec61347-2-13. input and output was shorted respectively. 3750vac/50hz sine wave applied between input and output for 1min, and operation was verified. surge test line to line 3000v surge testing was completed. input voltage was set at 230vac/50hz. output was loaded at full load and operation was verified following each surge event. surge level (v) input voltage (vac) injection location injection phase () test result (pass/fail) 3000 230 l to n 0 pass -3000 230 l to n 0 pass 3000 230 l to n 90 pass -3000 230 l to n 90 pass 3000 230 l to n 270 pass -3000 230 l to n 270 pass thermal test test without dimmer and with dimmer at 90% dimming on phase. without dimmer @110vac without dimmer @110vac with dimmer at 90% dimming on phase ocp dm inductor:71.9 output diode : 55.1 output diode : 55.1
EV4031-S-00A ? triac and analog dimmable 16w psr with pfc led driver EV4031-S-00A rev.1.01 www.monolithicpower.com 13 11/25/2014 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. evb test results performance waveforms are tested on the evaluation board. v in =108-305vac, 9 leds in series, i led =530ma, v out =30v, l p =1.74mh, n p :n s :n aux =95:25:20 line regulation full load pf pf 9khz 30 mhz sgl tds 6dr 120 100 khz 1 mhz 10 mhz 110 100 90 80 70 60 50 40 30 20 10 0 en550150 en55015a 1 pk clrwr 2 av clrwr 9khz 30 mhz sgl tds 6dr 120 100 khz 1 mhz 10 mhz 100 90 80 70 60 50 40 30 20 10 0 en550150 en55015a 1 pk clrwr 2 av clrwr 9khz 30 mhz sgl tds 6dr 120 100 khz 1 mhz 10 mhz 100 90 80 70 60 50 40 30 20 10 0 en550150 en55015a 1 pk clrwr 2 av clrwr 9khz 30 mhz sgl tds 6dr 120 100 khz 1 mhz 10 mhz 100 90 80 70 60 50 40 30 20 10 0 en550150 en55015a 1 pk clrwr 2 av clrwr 0 100 200 300 400 500 600 0 50 100 150 200 -0.40 -0.20 0.00 0.20 0.40 0.60 0.80 1.00 1.20 100 140 180 220 260 300 0.9875 0.988 0.9885 0.989 0.9895 0.99 0.9905 0.991 0.9915 108 113 118 123 128 133 138 0.9 0.91 0.92 0.93 0.94 0.95 0.96 0.97 0.98 185 205 225 245 265 285 11.4 11.6 11.8 12.0 12.2 12.4 12.6 12.8 13.0 13.2 108 113 118 123 128 133 138
EV4031-S-00A ? triac and analog dimmable 16w psr with pfc led driver EV4031-S-00A rev.1.01 www.monolithicpower.com 14 11/25/2014 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. evb test results (continued) performance waveforms are tested on the evaluation board. v in =108-305vac, 9 leds in series, i led =530ma, v out =30v, l p =1.74mh, n p :n s :n aux =95:25:20. 0.0 2.0 4.0 6.0 8.0 10.0 12.0 14.0 16.0 18.0 20.0 185 205 225 245 265 285 82 82.5 83 83.5 84 84.5 85 85.5 86 86.5 108 113 118 123 128 133 138 84 84.5 85 85.5 86 86.5 87 87.5 88 185 205 225 245 265 285 0 100 200 300 400 500 600 02 4 681012 0 100 200 300 400 500 600 024681012 0 100 200 300 400 500 600 02 4 6 81012
EV4031-S-00A ? triac and analog dimmable 16w psr with pfc led driver EV4031-S-00A rev.1.01 www.monolithicpower.com 15 11/25/2014 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. evb test results (continued) performance waveforms are tested on the evaluation board. v in =108-305vac, 9 leds in series, i led =530ma, v out =30v, l p =1.74mh, n p :n s :n aux =95:25:20. v in 100v/div. i in 200ma/div. v in 100v/div. i in 200ma/div. v comp 1v/div. v cc 10v/div. i led 200ma/div. v d 10v/div. v comp 1v/div. v cc 10v/div. i led 200ma/div. v d 10v/div. v comp 2v/div. v cc 10v/div. i led 200ma/div. v d 10v/div. v comp 1v/div. v cc 10v/div. i led 200ma/div. v d 10v/div. v comp 2v/div. v cc 10v/div. i led 500ma/div. v gate 10v/div. v comp 2v/div. v cc 10v/div. i led 500ma/div. v gate 10v/div. v comp 2v/div. v cc 10v/div. i led 500ma/div. v gate 10v/div.
EV4031-S-00A ? triac and analog dimmable 16w psr with pfc led driver EV4031-S-00A rev.1.01 www.monolithicpower.com 16 11/25/2014 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. evb test results (continued) performance waveforms are tested on the evaluation board. v in =108-305vac, 9 leds in series, i led =530ma, v out =30v, l p =1.74mh, n p :n s :n aux =95:25:20. v comp 2v/div. v cc 10v/div. v d 10v/div. i led 500ma/div. v comp 500mv/div. i in 500ma/div. v mult 500mv/div. i led 500ma/div. v comp 500mv/div. i in 200ma/div. v mult 200mv/div. i led 500ma/div. v d 10v/div. v zcd 2v/div. v comp 1v/div. v cs 1v/div. v d 10v/div. v zcd 2v/div. v comp 1v/div. v cs 1v/div. v d 10v/div. v zcd 2v/div. v comp 1v/div. v cs 1v/div.
EV4031-S-00A ? triac and analog dimmable 16w psr with pfc led driver EV4031-S-00A rev.1.01 www.monolithicpower.com 17 11/25/2014 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. quick start guide 1. preset ac power supply to 108vac ? v in ? 305vac. 2. turn power supply off. 3. connect the led string between ?led+? (anode of led string) and ?led-? (cathode of led string). 4. connect power supply terminals to ac v in terminals as shown on the board. 5. turn ac power supply on after making connections. 6. for triac dimming led lighting ap plication, especially in deep di mming situation, the led would shimmer caused by the dimming on duty which is not all the same in every line cycle. what?s more, the grid has noise or inrush which would bri ng out shimmer even flicke r. the suppressor circuit would help to improve this. for detailed information please refer to appendix.
EV4031-S-00A ? triac and analog dimmable 16w psr with pfc led driver EV4031-S-00A rev.1.01 www.monolithicpower.com 18 11/25/2014 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. appendix ripple suppressor (innovative proprietary) for triac dimming led li ghting application, a single stage pfc converter needs large output capacitor to reduce the ripple whose frequency is double of the grid. and in deep dimming situation, the led would shimmer caused by the dimming on duty which is not all the same in every line cycle. what?s more, the grid has noise or inrush which would bring out shimmer even flicker. figure 6 shows a ripple suppressor, which can shrink the led current ripple obviously. figure 6: ripple suppressor principle: shown in figure 6, resister r, capacitor c, and mosfet m compose the ripple suppressor. through the rc filter, c gets the mean value of the output voltage v co to drive the mosfet m. m works in variable resistance area. c?s voltage v c is steady makes the leds voltage is steady, so the leds current will be smooth. mosfet m holds the ripple voltage v co of the output. diode d and zener diode d z are used to restrain the overshoot at start-up. in the start-up process, through d and d z , c is charged up quickly to turn on m, so the led current can be built quickly. when v c rising up to about the steady value, d and d z turn off, and c combines r as the filter to get the mean voltage drop of v co . the most important parameter of mosfet m is the threshold voltage v th which decides the power loss of the ripple suppressor. lower v th is better if the mosfet can work in variable resistance area. the bv of the mosfet can be selected as double as v co and the continues drain current level can be selected as decuple as the leds? current at least. about the rc filter, it can be selected by rc linecycle 50 / f ? ? . diode d can select 1n4148, and the zener voltage of d z is as small as possible when guarantee o ddz c_pp vv 0.5v ??? . optional protection circuit in large output voltage or large leds current application, mosfet m may be destroyed by over-voltage or over-cur rent when led+ shorted to led- at working. gate-source (gs) over-voltage protection: + + n s d o d d z c o c d g r r o m r g figure 7: gate-source ovp circuit figure 7 shows gs over-v oltage protection circuit. zener diode d g and resistor r g are used to protect mosfet m from gs over-voltage damaged. when led+ shorted to led- at normal operation, the voltage drop on capacitor c is high, and the voltage drop on gate-source is the same as capacitor c. the zener diode d g limits the voltage v gs and r g limits the charging current to protect d g . r g also can limit the current of d z at the moment when led+ shorted to led-. v dg should bigger than v th . drain-source over-voltage and over-current protection as figure 8 shows, npn tr ansistor t, resistor r c and r e are set up to protect mosfet m from over-current damaged when output short occurs at normal operation. when led+ shorted to led-, the voltage v ds of mosfet is equal to the v co which has a high surge caused by the parasitic parameter. zener dioder d ds protects mosfet
EV4031-S-00A ? triac and analog dimmable 16w psr with pfc led driver notice: the information in this document is subject to change wi thout notice. please contact m ps for current specifications. users should warrant and guarantee that third party intellectual property rights ar e not infringed upon when integrating mps products into any application. mps will not assume any legal responsibility for any said applications. EV4031-S-00A rev.1.01 www.monolithicpower.com 19 11/25/2014 mps proprietary information. patent protect ed. unauthorized photocopy and duplication prohibited. ? 2014 mps. all rights reserved. from over-voltage damaged. transistor t is used to pull down the v gs of m. when m turns off, the load is opened, mp4031 detects there is an ovp happened, so the ic functions in quiescent. the pull down point is set by r c and r e : co ce v r/r 0.7v 2 ?? . figure 8: drain-source ovp and ocp circuit mosfet list in the table 1, there are some recommended mosfet for ripple suppressor. table 1: mosfet list manufacture p/n manufacture v ds /i d v th (v ds =v gs @t j =25c) power stage si4446dy vishay 40v/3a 0.6-1.6v@ id=250 a <10w ftd100n10a ips 100v/17a 1.0-2.0v@ id=250 a 5-15w p6015cdg niko-sem 150v/ 20a 0.45-1.20v@ id=250 a 10-20w

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