NCP1083QBCGEVB

NCP1083QBCGEVB Compact, high efficiency, 30W Reference platform with the NCP1083 Evaluation Board User's Manual http://onsemi.com EVAL BOARD USER’S MANUAL Board Details The NCP1083QBCGEVB implements a PoE module that converts the power from the Ethernet cable to a lower voltage. The board also supports getting its power from and auxiliary input, in case PoE network is not available Warnings Close to the switching MOSFET voltages on the board may exceed 200 V (@250 kHz). Temperature of board and its components may exceed 85°C during normal operation. The Evaluation board was designed to operate correctly under these conditions. The input voltage should never exceed 57 V nor should the evaluation board be loaded with loads higher than the specified 30 W. Exceeding the specified input and output values could permanently damage the board. Figure 1. Front Side of EVB Figure 2. Back Side of EVB Table 1. EVALUATION BOARD SPECIFICATIONS Characteristic Min Typ Max Unit Input Voltage, PoE Input 36 − 57 V Input Voltage, Auxiliary Input 24 − 57 V Output Voltage − 12 − V Output Current − − 2.5 A Oscillator Frequency − 250 − kHz Output Ripple − − 170 mV Efficiency − − 88 % © Semiconductor Components Industries, LLC, 2011 December, 2011 − Rev. 0 1 Publication Order Number: EVBUM2006/D NCP1083QBCGEVB Table 2. BOARD CONNECTOR DESCRIPTION Connector Pin Description P1 1 nClassAT, Notification Towards External Processor that IEEE802.3at, 2nd Event Classification Has Completed 2 Not Connected 3 Vin, PoE, Pair 1 4 Vin, PoE, Pair 1 5 Vin, PoE, Pair 2 6 Vin, PoE, Pair 2 7 Vaux, Positive Auxiliary Input Supply 8 Vaux_gnd, Auxiliary Input Supply Ground 1 12 V Regulated Output 2 12 V Regulated Output 3 12 V Regulated Output 4 GND Regulated Output 5 GND Regulated Output 6 GND Regulated Output Jout Figure 3. Layout Front Figure 4. Layout Back Figure 5. Silkscreen Front Figure 6. Silkscreen Back http://onsemi.com 2 NCP1083QBCGEVB Figure 7. Schematic Table 3. BILL OF MATERIALS Designator Qua ntity Description Value U1 1 Power over Ethernet controller NCP1083 Cf1 1 Capacitor SMD 0.1u/50V Cline, Cpd1 2 Capacitor SMD Csn1 1 Cfb2 Tolerance Footprint Manufacturer Manufacturer Part Number Substitution Allowed Lead Free TSSOPEP 20 ON Semiconductor NCP1083DEG No Yes 10% 0805-C-S Walsin 0805B104K500CT Yes Yes 100n/100V 10% 1206-C AVX 12061C104KAT2A Yes Yes Capacitor SMD 100p/200V 10% 0805-C-S AVX 08052A101JAT2A Yes Yes 1 Capacitor SMD 12n/50V 10% 0805-C-S AVX 08055C123KAT2A Yes Yes Cvdd h 1 Capacitor SMD 2.2u/16V (+80%) to (-20%) 0805-C-S AVX 0805YC225MAT2A Yes Yes Cgnd 1 Capacitor SMD 2200p/2kV 10% 1812 Walsin 1812B222K202LT Yes Yes Cfb1 1 Capacitor SMD 39n/50V 10% 0805-C-S AVX 08055C393KAT2A Yes Yes Cvddl 1 Capacitor SMD 470n/50V 10% 0805-C-S AVX 08055C474KAZ2A No Yes Csn2 1 Capacitor SMD 470p/200V 10% 0805-C-S AVX 08052C47KJAT2A Yes Yes Css 1 Capacitor SMD 47n/50V 10% 0805-C-S AVX 08055C473KAT2A Yes Yes Cpd 1 Electrolytic Capacitor 100u/63V 20% CRD10.0L 17.0RM5.0 Hitano EXR101M63 No Yes Cf 1 Capacitor Polar 10u/20V 10% C-TANT-B AVX TAJB106K020R Yes Yes Cout 1 Capacitor Polar 68u/25V/5 5mR 10% C-TANT-E AVX TPME686K025R0055 No Yes T3 1 PoE Plus Transformer SM-00112 EFD20 NUFLUX SM-00112 No Yes Daux 1 1 SMD Schottky Rectifier MBRS2H1 00T3G 403A-03 ON Semiconductor MBRS2H100T3G No Yes http://onsemi.com 3 NCP1083QBCGEVB Table 3. BILL OF MATERIALS Designator Qua ntity Description Value Dsn, Dsn1 2 SMD Ultrafast Rectifiers Dbr1, Dbr2, Dbr3, Dbr4 , Dbr5, Dbr6, 6 Dbw, Dgate Tolerance Footprint Manufacturer Manufacturer Part Number Substitution Allowed Lead Free MURS120 T3G 403A-03 ON Semiconductor MURS120T3G No Yes SMD Schottky Rectifier MBRS110 0T3G 403A-03 ON Semiconductor MBRS1100T3G No Yes 2 SMD Switching Diode BAS16HT 1G SOD323 ON Semiconductor BAS16HT1G Yes Yes Dsec 1 SMD Schottky Rectifier 12CWQ06 FNPBF DPAK Vishay 12CWQ06FNPBF No Yes Ztvs 1 SMD TVS Zener 1SMB100 AT3G 403A-03 ON Semiconductor / Multicomp 1SMB100AT3G / SMAJ58A Yes Yes Zaux1 1 SMD Zener MM3Z3V3 ST1G SOD323 ON Semiconductor MM3Z3V3ST1G Yes Yes Zbr3, Zbr4 2 SMD Zener MMSZ16T 1G SOD123 ON Semiconductor MMSZ16T1G Yes Yes Zline 1 SMD TVS Zener 1SMA58A T3G SMA ON Semiconductor / Multicomp 1SMA58AT3G / SMAJ58A Yes Yes JOUT 1 Header, 6-Pin Header 6 HDR1X6 FCI 8614-00-36-1-Y0-10 Yes Yes P1 1 Header, 8-Pin Header 8 HDR1X8 FCI 8614-00-36-1-Y0-10 Yes Yes L1 1 Drum Core Choke 10uH/3A 10X12 Prismatic 9404037403 No Yes Q1 1 MOSFET N-CHANNEL Si7462DP SOPP8 Vishay Siliconix Si7462DP No Yes Q4 1 MOSFET N-CHANNEL FDS3992 SO-8 Fairchild FDS3992 No Yes Qgate 1 Transistor PNP BFT92 SOT23 Philips BFT92 Yes Yes U2 1 HIGH ISOLATION VOLTAGE SSOP PHOTOCOUP LER PS2801-1F3-A SSOP4 CEL PS2801-1 No Yes U3 1 Programmable Shunt Voltage Reference TL432BID BZTG4 SOT23 Texas-Instruments TL432BIDBZTG4 No Yes Rcs 1 Resistor SMD 0.1/3W 1% 2512-S Bourns CRA2512-FZ-R100ELF Yes Yes Rgate 1 Resistor SMD 10 1% 0805-R-S Walsin WR08X10R0FTL Yes Yes Rinru sh 1 Resistor SMD 121k 1% 0805-R-S Walsin WR08X1213FTL Yes Yes Rbr3, Rbr4, Rosc 3 Resistor SMD 150k 1% 0805-R-S Walsin WR08X1503FTL Yes Yes Rfb1 1 Resistor SMD 15k 1% 0805-R-S Walsin WR08X1502FTL Yes Yes Rbias 2 1 Resistor SMD 20k 1% 0805-R-S Walsin WR08X2002FTL Yes Yes Rclas s 1 Resistor SMD 30.1 1% 0805-R-S Yageo RC0805FR-0730R1L Yes Yes Rdet1 1 Resistor SMD 24.9k 1% 0805-R-S Walsin WR08X2492FTL Yes Yes Rfb2 1 Resistor SMD 3.92k 1% 0805-R-S Walsin WR08X3921FTL Yes Yes Rsn1 1 Resistor SMD 330 /1W 5% 2512-S Walsin WR25X331JTL Yes Yes Raux 1 1 Resistor SMD 39.2k 1% 0805-R-S Walsin WR08X3922FTL Yes Yes Rilim1 1 Resistor SMD 44.2K 1% 0805-R-S Walsin WR08X4422FTL Yes Yes Rbias 1, Rsl 2 Resistor SMD 5.1k 5% 0805-R-S Walsin WR08X512JTL Yes Yes http://onsemi.com 4 NCP1083QBCGEVB Table 3. BILL OF MATERIALS Designator Qua ntity Description Value Tolerance Footprint Manufacturer Manufacturer Part Number Substitution Allowed Lead Free Rbw, Rsn2 2 Resistor SMD 75 1% 0805-R-S Walsin WR08X750JTL Yes Yes Rfb3 1 Resistor SMD 820 1% 0805­R­S Yageo RC0805FR-07820RL Yes Yes Rdet2 1 Resistor SMD 845 1% 0805-R-S Yageo RC0805FR-07845RL Yes Yes Rdet1 ’ 1 Resistor SMD NC Rbr1, Rbr2 2 Resistor SMD NC Q2, Q3 2 P-Channel 30V (D-S) MOSFET NC POWERP ACK 1212-8 Vishay Si7113 Csi 1 Capacitor SMD NC 0805-C-S Zbr1, Zbr2 2 SMD Zener NC SOD123 ON Semiconductor MMSZ16T1G 0805-R-S 1% 0805-R-S http://onsemi.com 5 onsemi, , and other names, marks, and brands are registered and/or common law trademarks of Semiconductor Components Industries, LLC dba “onsemi” or its affiliates and/or subsidiaries in the United States and/or other countries. onsemi owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. 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