EV020-5-S-01B 85vac~265vac/50hz, 12v/0.65a 5v/50ma off-line primary-side-regulator home appliances evaluation board EV020-5-S-01B rev.1.0 www.monolithicpower.com 1 5/31/2016 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2016 mps. all rights reserved. the future of analog ic technology description the EV020-5-S-01B evaluation board is designed to demonstrate the capabilities of mp020-5. the mp020-5 is a primary-side- control offline regulator which can eliminates secondary feedback components. the EV020-5-S-01B is typically designed for small home appliances which output 12v/0.65a and 5v/50ma load from 85vac to 265vac, 50hz/60hz. the EV020-5-S-01B has an excellent efficiency and meets iec61000-4-5 surge immunity and en55022 conducted emi requirements. it has multi-protection function as open circuit protection, short-circuit protection, cycle by cycle current limit and over-temperature protection, etc. electrical specification parameter symbol value units input voltage v in 85 to 265 vac output voltage 1 v out1 12 v output current 1 i out1 0.65 a output voltage 2 v out2 5 v output current 2 i out2 0.05 a output power p out 8.05 w efficiency (full load) >80 % features ? primary-side?control without opto-coupler or secondary feedback circuit ? precise constant current and constant voltage control (cc/cv) ? integrated 700v mosfet with minimal external components ? variable, off-time, peak-current control ? 550a high-voltage current source ? 100mw no-load power consumption ? programmable cable compensation ? multiple protections: ovp, ocp, ockp, otp, and vcc uvlo ? natural spectrum shaping for improved emi signature ? low cost and simple external circuit applications ? small home appliances ? cell phone chargers ? adapters for handheld electronics ? stand-by and auxiliary power supplies ? small appliances all mps parts are lead-free, halogen free, and adhere to the rohs directive. for mps green status, pl ease visit mps website under quality assurance. ?mps? and ?the future of analog ic technology? are registered trademarks of 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.
EV020-5-S-01B ? universal input, 8.05w home appliances EV020-5-S-01B rev.1.0 www.monolithicpower.com 2 5/31/2016 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2016 mps. all rights reserved. EV020-5-S-01B evaluation board top view bottom view (l x w x h) 50mm x 30mm x 18mm board number mps ic number EV020-5-S-01B mp020-5gs
EV020-5-S-01B ? universal input, 8.05w home appliances EV020-5-S-01B rev.1.0 www.monolithicpower.com 3 5/31/2016 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2016 mps. all rights reserved. evaluation board schematic figure 1?schematic vcc 1 gnd 2 fb 3 cp 4 gnd 5 gnd 6 drain 8 u1 mp020-5gs/soic8-7a fr107 d1 pgnd agnd pgnd pgnd pgnd vo2 agnd l n 22uf/50v c6 np:np_au:ns=184:15:16 lp=2.48mh np ns np_au fr1 1.2nf/100v c7 cr1 1000uh/0.25a l1 10k/0805 r1 10uf/400v c2 bav21w d2 20/1206 r7 27k/1% r5 10/1w 200v/0.2a 1000v/1a ee16 600v/0.5a 5v/50ma 85vac~265vac b380/80v/3a d3 10 6 3 1 5 4 t1 150k/1206 r3 pgnd 10uf/400v c1 1uf/25v c10 1nf/630v/1206 c3 470uf/25v c8 470uf/25v c9 nc c11 100nf/50v c5 357/1206 r2 14.3k/1% r6 2.2/1206 r4 2.2nf/250v cy1 l78l05 u3 vo1 12v/0.65a 1uf/25v c4 nc r8 0/0603 r9
EV020-5-S-01B ? universal input, 8.05w home appliances EV020-5-S-01B rev.1.0 www.monolithicpower.com 4 5/31/2016 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2016 mps. all rights reserved. pcb layout (single-sided) figure 2?top layer figure 3?bottom layer
EV020-5-S-01B ? universal input, 8.05w home appliances EV020-5-S-01B rev.1.0 www.monolithicpower.com 5 5/31/2016 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2016 mps. all rights reserved. circuit description the EV020-5-S-01B 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 accurate constant voltage and constant current. fr1 and cr1 compose the input stage. fr1 is used to protect for the component failure or some excessive short events, also it can restrain the inrush current. c1, l1 and c2 compose filter to guarantee the conducted emi meet standard en55022. r2, r3, d1 and c3 compose the snubber circuit to reduce drain-source voltage spike. r4, c5, c6 and d2 are used as vcc power supply. r5 and r6 are resistor divider for detecting output voltage by sampling voltage on primary auxiliary winding. cy1 is y capacitor lowering common mode noise to make sure there is enough emi margin. t1 is power transformer, the structure of which is also very important to pass emi test. d3, c8, c9, and c10 compose the 12v output circuit. d3 is schottky diode for better efficiency. c10 is ceramic capacitor for lower output voltage ripple. u3 is a ldo for 5v output. r7 and c7 are used to depress the spike of schottky.
EV020-5-S-01B ? universal input, 8.05w home appliances EV020-5-S-01B rev.1.0 www.monolithicpower.com 6 5/31/2016 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2016 mps. all rights reserved. ev020-5-s-00b bill of materials qty ref value description package manufacturer manufacturer_p/n 2 c1,c2 10 f capacitor;400v;20% dip ltec ty 10uf/400v 1 c3 1nf ceramic capacitor;630v;x7r 1206 murata grm31a7u2j102jw31d 1 c5 100nf ceramic capacitor;50v;x7r; 0603 murata gcj188r71h104ka12d 1 c6 22 f electrolytic capacitor;50v dip jianghai cd281l-50v22 1 c7 1.2nf ceramic capacitor;100v;x7r 0603 murata grm188r72a122ka01d 2 c8,c9 470 f electrolytic capacitor;25v,low esr dip rubycon 25zlf470mefc10x12.5 2 c10,c4 1 f ceramic capacitor;25v;x7r 0603 murata grm188r71e105ka12d 0 c11 nc 1 cy1 2.2nf y capacitor; 250v dip hongke jnk12e222ml02n 1 cr1 mb6f diode;600v;0.5a sop-4 diodes mb6f 1 d1 fr107 diode;1000v;1a do-41 diodes fr107 1 d2 bav21w diode;200v;0.2a; sod-123 diodes bav21w-7-f 1 d3 b380 schottky diode;80v;3a smc diodes b380 1 fr1 10 ? fusible resistor, 1 w, 5% yageo dip fkn1wsjt-52-10r 1 l1 1000 h inductor;1000uh;6 ohm;0.25a dip wurth 7447462102 1 r1 10k ? film resistor;5% 0805 yageo rc0805jr-0710kl 1 r2 357 ? film resistor;1%;1/4w 1206 yageo rc1206fr-07357rl 1 r3 150k ? film resistor; 1%,1/4w 1206 yageo rc1206fr-07150kl 1 r4 2.2 ? film resistor;5%;1/4w 1206 royalohm 1206f220kt5e 1 r5 27k ? film resistor;1%; 0603 yageo rc0603fr-0727kl 1 r6 14.3k ? film resistor;1% 0603 yageo rc0603fr-0714k3l 1 r7 20 ? film resistor;5%;1/4w 1206 royalohm 1206j0200t5e 0 r8 nc 1 r9 0 ? film resistor;5% 0603 yageo rc0603jr-070rl 1 u1 mp020-5 primary side regulator soic8-7a mps mp020-5gs 1 u3 l78l05a cutr ldo, 5v, 100ma sot89 any l78l05acutr wurth (1) 7508110328 1 t1 transformer;2.48mh; n p :n p_au :n s =184:15:1 6 ee16 emei (2) fx0303 (1) wurth transformer sample request pl ease login on website: www.we-online.com notes: (2) emei transformer sample request plea se login on website: www.emeigroup.com
EV020-5-S-01B ? universal input, 8.05w home appliances EV020-5-S-01B rev.1.0 www.monolithicpower.com 7 5/31/2016 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2016 mps. all rights reserved. transformer specification electrical diagram teflon tube n p1 n p_au 2 4 5 6 winding start 1 10 n s core is connected to pin 4 by wire n c n p2 3 nc figure 4?transformer electrical diagram notes: 1) core is connected with pin 4 with naked wire. 2) n s is with triple insulation wire. winding diagram figure 5?winding diagram
EV020-5-S-01B ? universal input, 8.05w home appliances EV020-5-S-01B rev.1.0 www.monolithicpower.com 8 5/31/2016 mps proprietary information. patent protec ted. unauthorized photocopy and duplication prohibited. ? 2016 mps. all rights reserved. winding order winding no. tape layer number start & end magnet wire (mm) turns n c 1 1 nc 0.15mm * 2 22 n p1 1 3 2 0.14mm * 1 92 n p_au 1 5 4 0.18mm * 1 15 n s 1 10 6 0.55mm * 1 tiw 16 n p2 1 2 1 0.14mm * 1 92 electrical specifications 60 second, 60hz, from pri. to sec. 3000vac 60 second, 60hz, from pri. to core. 500vac electrical strength 60 second, 60hz, from sec. to core. 3000vac primary inductance pins 1 - 3, all other windings open, measured at 50khz, 0.1 vrms 2.48mh10% primary leakage inductance pins 1 - 3 with all other pins shorted, measured at 50khz. 0.1 vrms 60 h10% materials item description 1 core: ee16, ui=230025%, al=73.2.4nh/n 2 3% gapped, or equivalent 2 bobbin: ee16, 5+5pin 1 sect th, ul94v-0 3 wire: 0.14mm,, 2uew, class b 4 wire: 0.15mm,, 2uew, class b 5 wire: 0.18mm,, 2uew, class b 6 triple insulation wire: 0.55mm tiw 7 tape: 8.0mm(w)0.06mm(th) 8 varnish: john c. dolph co, bc-346a or equivalent
EV020-5-S-01B ? universal input, 8.05w home appliances 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. EV020-5-S-01B rev.1.0 www.monolithicpower.com 9 5/31/2016 mps proprietary information. patent protect ed. unauthorized photocopy and duplication prohibited. ? 2016 mps. all rights reserved. quick start guide 1. preset power supply to 85vac ? v in ? 265vac. 2. turn power supply off. 3. connect the line and neutral terminals of the power supply output to l and n port. for three- wire input application, make output gnd connected to earth. 4. connect load to: a. positive (+): vout b. negative (?): gnd 5. turn power supply on after making connections.
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