ev6920-n-00a high efficiency synchronous rectification ev board ev6920-n-00a rev. 1.0 www.monolithicpower.com 1 12/18/2013 mps proprietary information. patent protected. unauthorized photocopy and duplication prohibited. ? 2013 mps. all rights reserved. the future of analog ic technology description the ev6920-n-00a is an evaluation board for the MP6920DN. it is configured to provide synchronous rectification solution for flyback topology. electrical spec ifications parameter symbol value units supply voltage v dd 8?24 v features ? integrated 10m ? 60v power switch ? compatible with energy star, 1w standby requirements ? v dd range from 8v to 24v ? max 300khz switching frequency ? supports dcm and quasi-resonant topologies ? supports high-side and low-side rectification ? power savings of up to 1.5w in a typical notebook adapter applications ? industrial power systems ? distributed power systems ? battery powered systems ? flyback converters all mps parts are lead-free and adhere to the rohs directive. for mps green status, please visit mps website under products, quality assurance page. ?mps? and ?the future of analog ic technology? are registered trademarks of monolithic power systems, inc. ev6920-n-00a evaluation board (l x w x h) 1.14? x 1.14? x 0.6? 2.9cm x 2.9cm x 1.4cm board number mps ic number ev6920-n-00a MP6920DN
ev6920-n-00a ? high efficiency synchronous rectification ev board ev6920-n-00a rev. 1.0 www.monolithicpower.com 2 12/18/2013 mps proprietary information. patent protected. unauthorized photocopy and duplication prohibited. ? 2013 mps. all rights reserved. evaluation board schematic vdd 4 vss 3 vss 2 vss 1 nc 5 vsense 6 nc 7 nc 8 u1 mp6920 2.2uf c1 1 vsense 1 vss 1 vdd e/pad ev6920-n-00a bill of materials qty ref value description package manufacturer manufacturer p/n 1 c1 2.2uf ceramic cap. 25v x7r 0805 murata grm21br71e225ka73l 1 u1 MP6920DN smart synchronous rectifier soic8 mps MP6920DN
ev6920-n-00a ? high efficiency synchronous rectification ev board ev6920-n-00a rev. 1.0 www.monolithicpower.com 3 12/18/2013 mps proprietary information. patent protected. unauthorized photocopy and duplication prohibited. ? 2013 mps. all rights reserved. printed circuit board layout figure 1?top silk layer figure 2?top layer figure 3?bottom layer
ev6920-n-00a ? high efficiency synchronous rectification ev board notice: the information in this document is subject to change without notice. users should warrant and guarantee that third party intellectual property rights are not infringed upon w hen integrating mps products into any application. mps will not assume any legal responsibility for any said applications. ev6920-n-00a rev. 1.0 www.monolithicpower.com 4 12/18/2013 mps proprietary information. patent protected. unauthorized photocopy and duplication prohibited. ? 2013 mps. all rights reserved. quick start guide 1. connect the positive and negative terminals of the power supply or the auxiliary winding to the vdd and vss pins, respectively. 2. parallel the vss pin and v sense pin as the source and drain of sr mosfet in the flyback circuit. 3. preset the input voltage of flyback converter to the normal input range, and then turn off the power supply. 4. turn the power supply on. the ic will automatically starts up and works as an ideal diode.
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