Schemattic for the NCP1910 N Ev valuation Board B 1N5408 D3 V+ R74 27R T2 650 uH R33 10R C8 2.2nF/Y 1 2.2nF/Y 1 R R27 47 7k R12 0R1 C16 2.2nF/Y 1 C11 IPP50R250CP Q7 BC858B NTCin C13 Q3 R7 73 27R C 56 R15 47k D10 L8 1 C6 15nF/630V R80 22R R84 R83 30k 24k R90 1k 1uF 1 2 3 4 U6 NCP4303A Vcc MIN_TOFF MIN_TON TRIG DRV GND COMP CS 8 7 6 5 1 Q1 R29 47k R13 0R1 9 10 L1 D7 6 67uH C7 15nF/630V R87 0R C54 3.9nF C48 R52 R53 12 11 24k 2 24k 220pF/630Vdc D9 R R51 1k R14 R75 27R XFMR2 R78 0R Q5 C 57 R7 76 27R R82 22R R16 47k DRV Rsense C33 C58 10 00nF C18 STP12NM50FP MURS160 1uF/275Vac NTCout R28 47k D6 MMSD4148 120uF/450V R32 10R C9 120uF/450V DB1 GBU8J 8A 600V Q2 R79 0R Q4 8 7 STP12NM50FP QH03TZ600 R88 0R IRFB3206 Vb IRFB3206 L2 C53 3.9nF MURS160 D5 R25 10R B72210P2301K101 C14 MMSD4148 D8 44 R45 MMSD4148 R4 5 510R NC R26 10R L7 1 C43 100nF C55 10 00nF R86 R85 30k 24k R89 1k 1uF 1 2 3 4 U5 NCP4303A Vcc MIN_TOFF MIN_TON TRIG DRV GND COMP CS 8 7 6 5 100nF F 0.47uF/X2 L4 L5 5 C23 0.1 uF/X2 R6 1M5 R7 1M5 R11 2M2 R10 2M2 R37 22k 3 PGout L6 R2 3M 5 13k R1 1M8 4 ON/OFF R46 CMT1-2.1-4L C44 100nF R47 430R R48 C45 100nF 18k Vref 6 7 8 9 C28 0.47 uF/X2 R71 150k 11 R40 43k R72 150k C46 1nF R49 24k C38 C 1nF 12 R38 24k C47 1uF R77 150k C40 100nF C41 10nF R41 33k Rt MH PGout Bridge N 23 R69 NC C32 100nF 22 R18 10R Q6 BC848B ISO4 SFH6156-2 R62 5.6k R63 8.2k Vref VCC PG_adj OVP2 FB Vctrl ML DRV GND_LLC Skip//GND_PFC CS/FF VM LBO CS Fold R24 20 C4 49 1nF R21 3k 19 18 C 52 22 2nF U3 TL431 R19 16 R20 14 R64 8.2k R17 330R R50 1k VCC R22 1.2k C31 1nF C29 C30 1nF 100nF C1 4.7uF/25V 5VSTBY _OUT ISO1 SFH6156-2 PGout ON/OFF HS2 Heatsink for sync rect: SK573 - 50 mm NTCout T POINT A T POINT A T POINT A LED2 Green LED R60 1k SW1 R57 SW 1k ISO3 SFH6156-2 R Relay G Q8 BC848B ON/OFF Signal (5V to turn on) LED1 Green LED R54 10k S236-10R Heatsink for SK K573-100 PGI for house-keeping R56 510R t NTCin R65 5.1k Rsense 1.8k 13 HS1 TP3 10R 1k 15 Vcc TP2 R67 12k DRV 17 RL1 G6DS-1A-H 12VDC Relay 470u/16V J3 G D11 MMSD4148 N Vref 8.2k J4 12V_out 12V @ 24A 12V_RTN ON/OFF BO_adj Vout P C27 0.6u R68 C51 NC 120k J2 AC inlet TP1 1000uF/16V VCC D1 MUR160 0 24 R42 C42 RT1 C19 1000uF/16V Vboot C35 100nF F1 T5A A/250V G U4 NCP1910 0B SS Vref C39 NC R81 150k 220nF N1 L 10 R39 0R R66 150k R70 150k 1 2 R3 3M C24 470nF R34 10k NC C25 1000uF/16V C37 C22 1000uF/16V CMT1-2.1-4L C20 1000uF/16V C5 C21 1000uF/16V R43 20k DB1, PFC & LLC: L 3 2 2 TP4 Title NCP1910 310W Demonstration Board SK573-50 3 T POINT A SK573-100 Size A3 Document Number NCP1910DEMO-B-TLS-PFC_LLC Date: Thursday , January 12, 2012 Rev 0 Shee et 1 of 2 Figure 1: Ma ain power supply sch hematic 3/2/2012 -1- www.o onsemi.com Schemattic for the NCP1910 N Ev valuation Board B C26 2 2.2nF/Y 1 L3 D12 10 Vb R8 47R 1 2 2.2uH C3 10nF 5L MBRD835 J1 D2 D1N4937 R9 150k 5VSTBY _OUT T sec dr 6 C15 1500uF/10V 9 VCC 2 1 C12 1500uF/ 10V C17 220uF/10V C4 100uF/16V R4 3M 5Vstby @ 2A D4 D D D1N4937 aux 7 R23 1k R5 2M 1 2 3 4 C36 2.2uF R31 27k C2 10uF/10V 5 4 T1 XFMR1 R3 30 75 5k R36 560k U1 NCP1027 Vcc R Comp GN ND OP PP R59 100R 8 BO FB Dra ain R61 R 10 0k 7 5 R58 1k ISO2 SFH6156-2 C50 100nF C34 2.2nF R35 39k C10 1uF/10V V U2 TL431 R55 R 10 0k Figure 2: Stand dby power supply scchematic 3/2/2012 3 -2- www.o onsemi.com