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Download User Guide for FEBFDMQ8203_25 W GreenBridge™ Evaluation Kit
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User Guide for FEBFDMQ8203_25 W GreenBridge™ Evaluation Kit for Power Over Ethernet 25 W Flyback DC-DC MLP 4.5x5 GreenBridge™ Featured Fairchild Product: FDMQ8203 Direct questions or comments about this evaluation board to: “Worldwide Direct Support” Fairchild Semiconductor.com © 2012 Fairchild Semiconductor Corporation FEBFDMQ8203_25 • Rev. 1.0.0 Table of Contents 1. Introduction ............................................................................................................................... 3 1.1. 1.2. Description ..................................................................................................................... 3 Features .......................................................................................................................... 3 2. Evaluation Board Specifications ............................................................................................... 3 3. Photographs............................................................................................................................... 4 4. Printed Circuit Board ................................................................................................................ 5 5. Schematic .................................................................................................................................. 6 6. Bill of Materials ........................................................................................................................ 8 7. Electrical Characteristics ........................................................................................................ 10 8. Setup and Test Procedure........................................................................................................ 10 8.1. Hardware Connector Description ................................................................................. 10 9. Performance of Evaluation Board ........................................................................................... 11 10. Revision History ..................................................................................................................... 14 © 2012 Fairchild Semiconductor Corporation 2 FEBFDMQ8203_25 • Rev. 1.0.0 The following user guide supports the evaluation kit for the MLP4.5x5 GreenBridge™. It should be used in conjunction with the FDMQ8203 datasheet as well as Fairchild’s application notes and technical support team. Please visit Fairchild’s website at www.fairchildsemi.com. 1. Introduction This board is designed to rectify the positive and negative power source from Power Source Equipment (PSE) and regulate 48 V (42 V ~ 57 V) to provide 5 VOUT, 0-5 A with 250 kHz switching frequency. The board meets the required specification under IEEE802.3af. 1.1. Description This kit contains the MLP 4.5x5 GreenBridge™ MOSFET evaluation board. 1.2. Features 2. GreenBridge™ FDMQ8203 Quad P&N-Channel MOSFET Flyback Primary Switch FDS86242 Single N-Channel MOSFET Flyback Secondary Switch FDMC7692S Single N-Channel MOSFET Controller IEEE802.3at PD with Flyback Controller Output-Voltage Range 5 V, Adjustable by R11 and R10 Switching Frequency 250 kHz, Adjustable by C50 Maximum Output Current 5 A, Limited by Power Component Evaluation Board Specifications Table 1. Part Number FDMQ8203 GreenBridge™ MOSFET Parameters RDS(ON) [mΩ] Qg [nC] COSS [pF] Max. Typ. Typ. 100 175 at 6 VGS 1.8 at 5 VGS 47 -80 235 at 4.5 VGS 6.8 at 4.5 VGS 49 Location BVDSS (V) Q1, Q4 Q2, Q3 © 2012 Fairchild Semiconductor Corporation 3 FEBFDMQ8203_25 • Rev. 1.0.0 3. Photographs Figure 1. Figure 2. © 2012 Fairchild Semiconductor Corporation Top Side View of Evaluation Kit Bottom Side View of Evaluation Kit 4 FEBFDMQ8203_25 • Rev. 1.0.0 4. Printed Circuit Board PCB layout (100 mm x 80 mm, 4 Layer). Figure 3. SST (Component Side) Layer Figure 4. SMT (Mounting Side) Layer Figure 5. TOP & SMT Layer Figure 6. BOT & SMB Layer Figure 7. INNER1 (POWER) Layer Figure 8. INNER2 (GND) Layer © 2012 Fairchild Semiconductor Corporation 5 FEBFDMQ8203_25 • Rev. 1.0.0 Schematic 5. 9 10 11 12 13 9 T2 ETH1-230LD 10 11 12 13 6 5 4 3 2 1 6 5 4 3 2 1 6 5 4 3 2 J21 ATX12V 6P 1 1 2 3 4 5 6 R58 20K C60 1nF D48 D49 Q49 1N4148WS MM5Z10V MMBT2222A C61 1nF D47 D46 1N4148WSMM5Z10V MMBT2907A Q50 R59 20K Q48 FDMQ8203 9 3 2 4 6 5 10 11 1 7 8 12 J28 J29 J30 J31 supportersupporter supporter supporter C62 1nF D51 1N4148WS R52 20K R53 20K Q42 MMBT2907A D53 D52 MM5Z10V 1N4148WS Q41 MMBT2222A D50 MM5Z10V C63 1nF R56 20K C66 1nF D60 D61 Q46 1N4148WS MM5Z10V MMBT2222A D59 D58 1N4148WSMM5Z10V C67 1nF MMBT2907A Q47 R57 20K Q45 FDMQ8203 9 1 3 2 4 6 5 10 11 7 8 12 16 15 14 13 J12 J11 J7 J8 MID-MID+ RXCTTXCT TX+ TXRX+ MID+ RXMID14 R62 75 14 R64 75 C69 0.01uF/100V R61 75 C71 C68 0.01uF/100V 0.01uF/100V 16 15 14 13 J17 1 2 3 4 5 6 7 8 RJ45 R63 75 C70 0.01uF/100V C72 1nF/2KV(1808) D57 MM5Z10V D54 MM5Z10V C64 1nF R54 20K D56 Q43 1N4148WS MMBT2222A R55 20K Q44 MMBT2907A D55 1N4148WS C65 1nF R60 20K P48V D63 SMAJ58A N48V P48V C73 0.082uF/100V N48V GreenBridge™ Block Schematic Figure 9. FEBFDMQ8203_25 • Rev. 1.0.0 6 © 2012 Fairchild Semiconductor Corporation 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 + L3 DR73 6R8uH D3 BAS21 R1 20 R2 20K / 2012 C42 22uf /25V 0 C41 1uF U3 LTC4269-1 SHDN VPROTP T2P NC RCLASS PWRGD_BAR NC PWRGD VPORTN NC VPORTN VNEG NC VNEG NC NC SG PG Vcc RGDLY ton RCMP ENDLY CCMP SYNC SENSE+ SFST SENSEOSC UVLO FB VCMP C44 3.3nF 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 J20 PWRGD C45 1nF R25 50K 1% R7 4.7 Q1 0 R18 12K FDS86242 4 C40 100pF / 2012 R8 150 / 2012 R16 39K 1% R15 C49 R17 14K 1% 0.1uF 750 6 9 7 10 T1 PA2369NL PCP200 HMHA2801 2 1 5 3 R13 5.1 C48 1.5nF 1uF C34 R9 0.03 1/2W 0 R3 100 9 8 7 6 5 C46 22uf /16V 4 Q2 FDMC7692S L2 DR73 R33uH R24 20k R6 10K C37 1uF R4 47 C47 10uf /35V MBR0540 D4 C38 100uF/6.3V Q9 MMBT2222A R5 15 C39 22uf /16V Q10 MMBT2907A C35 2.2nF C36 4.7nF/250V, GA343D PE-68386NL L4 1 2 3 C22 C23 22uF/100V 2.2uF/100V 0 D62 PDZ36B Q11 BSS63LT 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 R21 30ohm 1% R12 10k 5 6 7 8 9 3 2 1 J13 VPORT_P R19 100k R20 10k R14 100k R23 39K C51 NC C50 33pF 0 1 1 1 1 1 J9 OUTPUT 1 J10 OUTPUT_GND D5 MBR0540 FEBFDMQ8203_25 • Rev. 1.0.0 7 © 2012 Fairchild Semiconductor Corporation R22 10k R11 27K 1% R10 3K 1% J15 GND D6 S1B J18 AUX- GND 33 P48V J16 AUX+ N48V J14 VPORT_N 1 1 1 1 1 1 1 1 1 1 Figure 10. PoE Power Device Controller and Flyback DC-DC Block Schematic 6. Item Bill of Materials Table 2. Bill of Materials Qty. Reference Part Name Vendor Comment 1 1 C22 22 µF / 100 V / Aluminum Samyoung 2 1 C23 GRM32ER72A225KA35 Murata 3 3 C34, C37, C41 1 µF / 1608 Any 4 1 C35 2.2 nF / 1608 Any 5 1 C36 GA343D Murata 4.7 µf / 250 V / 1812 2.2 µF / 100 V / 1210 6 1 C38 F930J107MBA Unitel Electric 100 µF / 6.3 V / 3225 7 2 C39, C46 C3225X7RIC226M TDK 22 µF / 16 V / 3216 8 1 C40 100 pF / 2012 Any 9 1 C42 GRM32ER71E226KE15L Murata 10 1 C44 3.3 nF / 1608 Any 11 9 C45, C60, C61, C62, C63, C64, C65, C66, C67 1 nF / 1608 Any Samsung 22 µF / 25 V / 3216 12 1 C47 10 µF / 35 V 13 1 C48 1.5 nF / 1608 Any 14 1 C49 0.1 µF / 1608 Any 15 1 C50 33 pF / 1608 Any 16 1 C51 NC 17 4 C68, C69, C70, C71 C2012X7R2A103K TDK 0.01 µF / 100 V / 2012 18 1 C72 C4520X7R3D102K TDK 1 nF / 2 KV(1808) 19 1 C73 C0805C823K1RACTU Kemet 0.082 µF / 100 V /2012 20 1 D3 BAS21 Fairchild Semiconductor 21 2 D4,D5 MBR0540 Fairchild Semiconductor 22 1 D6 S1B Fairchild Semiconductor 23 8 D46, D49, D50, D53, D54, D57, D58, D61 MM5Z10V Fairchild Semiconductor 24 8 D47, D48, D51, D52, D55, D56, D59, D60 1N4148WS Fairchild Semiconductor 25 1 D62 PDZ36B On Semiconductor 36 V Zener Diode 26 1 D63 SMAJ58A Diodes TVS Diode 27 1 J17 RJ45 Any 28 1 J21 ATX12V 6P Any 29 1 L2 DR73 R33 µH Coiltronics 0.33 µH 30 1 L3 DR73 6R8 µH Coiltronics 6.8 µH 31 1 L4 PE-68386NL Pulse 32 1 PCP200 HMHA2801 Fairchild Semiconductor Opto-coupler FDS86242 Fairchild Semiconductor 150 V 55 mΩ MOSFET 30 V 9.3 mΩ MOSFET 33 1 Q1 34 1 Q2 FDMC7692S Fairchild Semiconductor 35 5 Q9, Q41, Q43, Q46, Q49 MMBT2222A Fairchild Semiconductor 36 5 Q10, Q42, Q44, Q47, Q50 MMBT2907A Fairchild Semiconductor 37 1 Q11 BSS63LT On Semiconductor 38 2 Q45, Q48 FDMQ8203 Fairchild Semiconductor 39 1 R1 20 Ω / 1608 Any © 2012 Fairchild Semiconductor Corporation 8 10 V Zener Diode GreenBridge™ Quad MOSFET FEBFDMQ8203_25 • Rev. 1.0.0 Item Qty. Reference Part Name Vendor 40 1 41 1 R2 20 kΩ / 2012 Any R3 100 Ω / 1608 Any 42 1 R4 47 Ω / 1608 Any 43 1 R5 15 Ω / 1608 Any 44 4 R6, R12, R20, R22 10 kΩ / 1608 Any 45 1 R7 4.7 Ω / 1608 Any 46 1 R8 150 Ω / 2012 Any Comment 47 1 R9 0.03 Ω / 0.5 W HMR 48 1 R10 3 kΩ 1% / 1608 Any 49 1 R11 27 kΩ / 1% / 1608 Any 50 1 R13 5.1 Ω / 1608 Any 51 2 R14, R19 100 kΩ / 1608 Any 52 1 R15 14 kΩ / 1% / 1608 Any 53 1 R16 39 kΩ / 1% / 1608 Any 54 1 R17 750 Ω / 1608 Any 55 1 R18 12 kΩ / 1608 Any 56 1 R21 30 Ω / 1% / 1608 Any 57 1 R23 39 kΩ / 1608 Any 58 10 R24, R52, R53, R54, R55, R56, R57, R58, R59, R60 20 kΩ / 1608 Any 59 1 R25 50 kΩ / 1% / 1608 Any 60 4 R61, R62, R63, R64 75 Ω / 1608 Any 59 1 T1 PA2369NL Pulse Transformer 60 1 T2 ETH1-230LD Coilcraft Ethernet Transformer 61 1 U3 LTC4269-1 LTC PoE Flyback IC © 2012 Fairchild Semiconductor Corporation 9 Shunt Resistor FEBFDMQ8203_25 • Rev. 1.0.0 7. Electrical Characteristics Table 3. Electrical Specification Parameter ™ GreenBridge Value Remark FDMQ8203 Quad P&N-Channel MOSFET, Fairchild Semiconductor Flyback Primary Switch FDS86242 Single N- Channel MOSFET, Fairchild Semiconductor Flyback Secondary Switch FDMC7692S Single N- Channel MOSFET, Fairchild Semiconductor Controller 8. IEEE802.3at PD with Flyback Controller VOUT Range 5V Adjustable by R11 and R10 Switching Frequency 250 kHz Adjustable by C50 Maximum IOUT 5A Limited by Power Component Setup and Test Procedure Table 4. Test Point Descriptions Test Point Label J13 P48V Measurement test point for rectified positive input voltage J14 N48V Measurement test point for rectified negative input voltage J15 GND Measurement test point for input voltage return J9 +VOUT Measurement test point for output voltage J10 -VOUT Measurement test point for output voltage return 8.1. Descriptions Hardware Connector Description The evaluation kit is fully assembled and tested. Follow the steps below to verify board operation. 1. Use one of the following methods to power the evaluation kit: If network connectivity is required: Connect a CAT5 Ethernet network cable from the evaluation kit input port RJ45 connector to the corresponding PSE Ethernet LAN connection, which provides power to the evaluation kit. J21 connector provides an interface with the Ethernet data signals only. If network connectivity is not required: Connect a -48 V DC power supply between the TXCT and RXCT. Connect a -48 V DC power supply between the MID+ and MID-. Caution: Do not turn on the power supply until all connections are completed. 2. Activate the PSE power supply or turn on the external DC power supply. 3. Using a voltmeter, verify that the evaluation kit provides +5 V across the +VOUT and –VOUT pins. –VOUT is isolated from the evaluation kit’s input N48 V and GND pins. © 2012 Fairchild Semiconductor Corporation 10 FEBFDMQ8203_25 • Rev. 1.0.0 9. Performance of Evaluation Board Figure 11 and Figure 15 are measured data. FDMQ8203 GreenBridge™ vs. S210 Diode Bridge 90 88 Efficiency(%) 86 84 GreenBirdge™ 42Vin GreenBirdge™ 48Vin 82 GreenBirdge™ 57Vin Diode bridge 42Vin Diode bridge 48Vin 80 Diode bridge 57Vin 78 1 Figure 11. 2 4 5 Efficiency at VOUT=5 V, fSW=250 kHz, Soaking=5 Minutes, TA=25°C FDMQ8203 GreenBridge™ vs. S210 Diode Bridge 4.0 GreenBirdge™ 42Vin GreenBirdge™ 48Vin GreenBirdge™ 57Vin Diode birdge 42Vin Diode birdge 48Vin Diode birdge 57Vin 3.5 3.0 Power loss(W) 3 Load(A) 2.5 2.0 1.5 1.0 0.5 1 Figure 12. 2 3 Load(A) 4 5 Power Loss at VOUT=5 V, fSW=250 kHz, Soaking=5 Minutes, TA=25°C © 2012 Fairchild Semiconductor Corporation 11 FEBFDMQ8203_25 • Rev. 1.0.0 S210 Diode Bridge FDMQ8203 GreenBridgeTM 53.7°C 38.7°C 49.9°C 36.9°C 47.1°C 35.7°C 42 VIN 48 VIN 57 VIN Figure 13. Thermal Performance Comparison at VOUT=5 V, IOUT=5 A, fSW=250 kHz, Soaking=5 Minutes, TA=25°C © 2012 Fairchild Semiconductor Corporation 12 FEBFDMQ8203_25 • Rev. 1.0.0 FDMQ8203 GreenBridge™ vs. S210 Diode Bridge 55 GreenBirdge™ 42Vin GreenBirdge™ 48Vin GreenBirdge™ 57Vin Diode birdge 42Vin Diode birdge 48Vin Diode birdge 57Vin Temperature()℃) 50 45 40 35 30 25 1 Figure 14. 2 3 Load(A) 4 5 Thermal Performance at VOUT=5 V IOUT=5 A, fSW=250 kHz, Soaking=5 Minutes, TA=25°C GreenBridge™ FDMQ8203: 36.4°C Flyback Primary FDS86242: 51.5°C Figure 15. Flyback Secondary FDMC7692S: 61°C Thermal Performance at VIN=48 V, VOUT=5 V IOUT=5 A, fSW=250 kHz, Soaking=10 Minutes, TA=25°C © 2012 Fairchild Semiconductor Corporation 13 FEBFDMQ8203_25 • Rev. 1.0.0 10. Revision History Rev. Date Description 0.1.0 April 23, 2012 Initial Release 1.0.0 November 28, 2012 Reformat to template, Proofread and correct content WARNING AND DISCLAIMER Replace components on the Evaluation Board only with those parts shown on the parts list (or Bill of Materials) in the Users’ Guide. Contact an authorized Fairchild representative with any questions. This board is intended to be used by certified professionals, in a lab environment, following proper safety procedures. Use at your own risk. The Evaluation board (or kit) is for demonstration purposes only and neither the Board nor this User’s Guide constitute a sales contract or create any kind of warranty, whether express or implied, as to the applications or products involved. Fairchild warrantees that its products meet Fairchild’s published specifications, but does not guarantee that its products work in any specific application. Fairchild reserves the right to make changes without notice to any products described herein to improve reliability, function, or design. Either the applicable sales contract signed by Fairchild and Buyer or, if no contract exists, Fairchild’s standard Terms and Conditions on the back of Fairchild invoices, govern the terms of sale of the products described herein. DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION, OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 1. Life support devices or systems are devices or systems which, (a) are intended for surgical implant into the body, or (b) support or sustain life, or (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. 2. A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system, or to affect its safety or effectiveness. ANTI-COUNTERFEITING POLICY Fairchild Semiconductor Corporation's Anti-Counterfeiting Policy. Fairchild's Anti-Counterfeiting Policy is also stated on our external website, www.fairchildsemi.com, under Sales Support. Counterfeiting of semiconductor parts is a growing problem in the industry. All manufacturers of semiconductor products are experiencing counterfeiting of their parts. Customers who inadvertently purchase counterfeit parts experience many problems such as loss of brand reputation, substandard performance, failed applications, and increased cost of production and manufacturing delays. Fairchild is taking strong measures to protect ourselves and our customers from the proliferation of counterfeit parts. Fairchild strongly encourages customers to purchase Fairchild parts either directly from Fairchild or from Authorized Fairchild Distributors who are listed by country on our web page cited above. Products customers buy either from Fairchild directly or from Authorized Fairchild Distributors are genuine parts, have full traceability, meet Fairchild's quality standards for handling and storage and provide access to Fairchild's full range of up-to-date technical and product information. Fairchild and our Authorized Distributors will stand behind all warranties and will appropriately address any warranty issues that may arise. Fairchild will not provide any warranty coverage or other assistance for parts bought from Unauthorized Sources. Fairchild is committed to combat this global problem and encourage our customers to do their part in stopping this practice by buying direct or from authorized distributors. EXPORT COMPLIANCE STATEMENT These commodities, technology, or software were exported from the United States in accordance with the Export Administration Regulations for the ultimate destination listed on the commercial invoice. Diversion contrary to U.S. law is prohibited. U.S. origin products and products made with U.S. origin technology are subject to U.S Re-export laws. In the event of re-export, the user will be responsible to ensure the appropriate U.S. export regulations are followed. © 2012 Fairchild Semiconductor Corporation 14 FEBFDMQ8203_25 • Rev. 1.0.0
