EV6919-S-00A

EV6919-S-00A High Efficiency Synchronous Rectification EV Board DESCRIPTION FEATURES The MP6919 is a fast turn-off, intelligent rectifier for flyback converters that integrates a 100V/13mΩ MOSFET. It can replace a diode rectifier for higher efficiency and power density. The chip regulates the forward voltage drop of the internal power switch to 40mV and turns off before the drain-source voltage reverses.    The MP6919 can generate its own supply voltage without the need for auxiliary winding, which makes it suitable for charger applications with a low output voltage requirement or any other adaptor applications with high-side set-up. The internal ringing detection circuitry prevents the MP6919 from falsely turning on during discontinuous conduction mode (DCM) or quasi-resonant operations. EV6919-S-00A is the evaluation board for MP6919.    Integrated 100V/13mΩ MOSFET Wide Output Range down to 0V No Need for Auxiliary Winding for High-Side or Low-Side Rectification Ringing Detection Prevents False Turn-On during DCM Operations Compatible with Energy Star Supports DCM, CCM, and Quasi-Resonant Operations APPLICATIONS    Laptop Adapters QC and USB PD Charger High-Efficiency Flyback Converters All MPS parts are lead-free, halogen 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 of Monolithic Power Systems, Inc. EV6919-S-00A EVALUATION BOARD (L x W) 2.2cm x2.2cm Board Number EV6919-S-00A MPS IC Number MP6919GS EV6919-S-00A Rev. 1.0 www.MonolithicPower.com 8/12/2019 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2019 MPS. All Rights Reserved. 1 EV6919-S-00A – HIGH EFFICIENCY SYNCHRONOUS RECTIFICATION EV BOARD EVALUATION BOARD SCHEMATIC 20 C2 R3 1 2 1nF 20 R2 1 2 1 VSS 1 U1 C1 470nF 3 4 VD VD VSS VD VSS VD VDD SENSE 8 7 6 5 R1 1 VD 300 VDD MP6919 SOIC8 BILL OF MATERIALS Qty RefDes Value 1 C1 470nF 1 C2 1nF 1 R1 300 2 1 R2,R3 U4 3 VS,VD,VDD Description Ceramic Capacitor;50V;X7R Ceramic Capacitor;250V;X7R Package Manufacturer Manufacturer P/N 0805 Murata GRM21BR71H474KA88 0805 TDK GRM21AR72E102KW01 D Film Resistor;1% 0603 Yageo RC0603FR-07300RL 20 MP6919GS Film Resistor;1% R7 1206 SOIC-8 Yageo MPS RC1206FR-0720RL R7 Connector 1.0mm EV6919-S-00A Rev. 1.0 www.MonolithicPower.com 8/12/2019 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2019 MPS. All Rights Reserved. 2 EV6919-S-00A – HIGH EFFICIENCY SYNCHRONOUS RECTIFICATION EV BOARD PRINTED CIRCUIT BOARD LAYOUT Figure 1: Top Layer EV6919-S-00A Rev. 1.0 www.MonolithicPower.com 8/12/2019 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2019 MPS. All Rights Reserved. 3 EV6919-S-00A – HIGH EFFICIENCY SYNCHRONOUS RECTIFICATION EV BOARD QUICK START GUIDE 1. Connect the VS and VD pin into the flyback circuit to replace the freewheel diode. 2. Turn the power supply on. The IC will start up and work as a freewheel diode automatically. 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 when integrating MPS products into any application. MPS will not assume any legal responsibility for any said applications. EV6919-S-00A Rev. 1.0 www.MonolithicPower.com 8/12/2019 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2019 MPS. All Rights Reserved. 4