EV171-S-00A Small, Universal Input Non-Isolated Off-Line Regulator Evaluation Board The Future of Analog IC Technology DESCRIPTION FEATURES The EV171-S-00A Evaluation Board is designed to demonstrate the capabilities of MP171. The MP171 is a primary-side constant voltage regulator providing accurate constant voltage (CV) regulation without Opto-coupler. It supports Buck, Buck-Boost, Boost and Flyback topologies. • The EV171-S-00A Evaluation Board is designed as Buck application. EV171-S-00A typically drives 5V/50mA load from 85VAC to 265VAC, at 60/50Hz. The EV171-S-00A has an excellent efficiency and meets 2kV IEC61000-4-5 surge immunity and EN55022 conducted EMI requirements. MP171 features various protections, including thermal shutdown (TSD), VCC under-voltage lockout (UVLO), over-load protection (OLP), short- circuit protection (SCP), and open loop protection. MP171 is available in TSOT23-5 and SOIC8 package. ELECTRICAL SPECIFICATION Parameter Input Voltage Output Voltage Output Current Symbol Value Units VIN VOUT IOUT 85 to 265 5 50 VAC V mA • • • • • • • • • Primary-Side non-isolated Constant Voltage (CV) control Integrated 700V MOSFET <100mW no-load power consumption Peak-Current control with peak current compression Low VCC operating current Limited maximum frequency Frequency foldback Multiple protections: SCP, OLP, open-loop protection, TSD, and VCC UVLO Low cost and simple external circuit Internally biased VCC APPLICATIONS • • • Home appliance, and consumer electronics Home automation Standby power 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. 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. EV171-S-00A Rev.1.0 www.MonolithicPower.com 9/23/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 1 EV171-S-00A – SMALL OFF-LINE REGULATOR EVALUATION BOARD EV171-S-00A EVALUATION BOARD (L x W x H) 17mm x 22mm x 17mm Board Number MPS IC Number EV171-S-00A MP171GS EV171-S-00A Rev.1.0 www.MonolithicPower.com 9/23/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 2 EV171-S-00A – SMALL OFF-LINE REGULATOR EVALUATION BOARD EVALUATION BOARD SCHEMATIC D1 R1 41.2K SRGC10JH C1 22nF U1 8 RF1 L 39 7 SRGC10JH Vcc 1 Drain FB 2 1mH 6 85~265VAC NC L1 D2 C3 C4 2.2uF/400V 2.2uF/400V 5 NC Source NC Source C2 2.2uF C7 470pF R2 39.2K 5V/50mA L2 3 1mH Vout 4 MP171GS D3 STTH1R06 600V/1A C5 C6 R3 22uF NC 1.2K D4 N GND SRJC10JH GND Figure 1—Schematic EV171-S-00A Rev.1.0 www.MonolithicPower.com 9/23/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 3 EV171-S-00A – SMALL OFF-LINE REGULATOR EVALUATION BOARD PCB LAYOUT (SINGLE-SIDED) Figure 2—Top Layer Figure 3—Bottom Layer EV171-S-00A Rev.1.0 www.MonolithicPower.com 9/23/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 4 EV171-S-00A – SMALL OFF-LINE REGULATOR EVALUATION BOARD BILL OF MATERIALS Qty Ref Value 1 C1 22nF 1 C2 2.2uF 2 C3, C4 2.2uF 1 C5 22uF 1 C7 470pF 1 D1, D2, D4 D3 1 L1 1mH 1 1 1 1 1 1 L2 R1 R2 R3 RF1 U1 1mH 41.2K 39.2K 1.2K 39 MP171 3 Description Ceramic Capacitor; 16V; X7R Ceramic Capacitor; 10V; X7R Electrolytic Capacitor; 400V Ceramic Capacitor; 25V; X5R Ceramic Capacitor; 50V; X7R SRGC10MH Diode; 1000V; 1A STTH1R06 Diode; 600V; 1A Inductor; 17.4Ω; 100mA Inductor; 6Ω; 250mA Film Resistor; 1% Film Resistor; 1% Film Resistor; 1% Fuse Resistor; 5%; 1W Buck Regulator Package Manufacture Manufacture_PN 0603 muRata GRM188R71C223KA01D 0603 muRata GRM188R71A225KE15D DIP Rubycon 400LLE2R2MEFC 1206 muRata GRM31CR61E226KE15 0603 TDK 1206 ZOWIE SRGC10MH DO-41 ST STTH1R06 DIP Any CKL0410-102 DIP 0603 0603 0603 DIP SOIC8 Wurth Yageo Yageo Yageo Yageo MPS C1608X7R1H471K 7447462102 RC0603FR-0741K2L RC0603FR-0739K2L RC0603FR-071K2L FKN1WSJT-50-39R MP171GS EV171-S-00A Rev.1.0 www.MonolithicPower.com 9/23/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 5 EV171-S-00A – SMALL OFF-LINE REGULATOR EVALUATION BOARD CIRCUIT DESCRIPTION The EV171-S-00A is configured in a buck topology to demonstrate the performance of MP171. MP171 is a primary side controller which provides accurate constant voltage. It simplifies the schematic and minimizes the BOM cost. FR1 is used to protect circuit from component failure or some excessive short events; also it can restrain the inrush current. C3, L1 and C4 compose CLC filter to meet the conducted EMI standard EN55022. C3 is also used for energy storage and protecting against line surge. C1 is the sample-hold capacitor used for reflecting output voltage. R1 and R2 are resistor divider for detecting output voltage by sampling voltage on C1. D3 is the freewheeling diode. For universal voltage applications, use a diode with a 600V reverse block voltage. Fast recovery diode or ultra fast diode is recommended for better efficiency and reliable operation. C5 is the output capacitors for 5V output. R3 is dummy load to lower the output voltage of 5V rail at no load condition. With FR1, C3 and C4 used, EV171-S-00A meets 2kV IEC61000-4-5 surge immunity standard. EV171-S-00A Rev.1.0 www.MonolithicPower.com 9/23/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 6 EV171-S-00A – SMALL OFF-LINE REGULATOR EVALUATION BOARD QUICK START GUIDE 1. Preset power supply to 85VAC ≤ VIN ≤ 265VAC. 2. Turn power supply off. 3. Connect the Line and Neutral terminals of the power supply output to L and N port. 4. Connect load positive and negative terminals to corresponding + and - outputs. 5. Turn power supply on after making connections. NOTICE: The information in this document is subject to change without notice. Please contact MPS for current specifications. 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. EV171-S-00A Rev.1.0 www.MonolithicPower.com 9/23/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. © 2015 MPS. All Rights Reserved. 7