TND316/D Rev. 3, March-07 220 W LCD TV Power Supply Reference Design Featuring NCP1396 and NCP1605 Documentation 1 © 2007 ON Semiconductor. Disclaimer: ON Semiconductor is providing this reference design documentation package “AS IS” and the recipient assumes all risk associated with the use and/or commercialization of this design package. No licenses to ON Semiconductor’s or any third party’s Intellectual Property is conveyed by the transfer of this documentation. This reference design documentation package is provided only to assist the customers in evaluation and feasibility assessment of the reference design. It is expected that users may make further refinements to meet specific performance goals. 2 1 2 3 Overview.......................................................................................................4 Introduction ...................................................................................................5 LCD TV Power Supply Requirements...........................................................5 3.1 Standby mode ........................................................................................5 3.2 Active mode............................................................................................6 4 Limitations of existing solutions ....................................................................7 5 Overcoming limitations with NCP1605 / NCP1396 / NCP1027.....................7 5.1 Architecture Overview.............................................................................7 5.2 Main power supply: NCP1396 ................................................................8 5.2.1 Half Bridge Resonant LLC topology ................................................8 5.2.2 Protections ......................................................................................9 5.3 Standby Power Supply: NCP1027..........................................................9 5.3.1 NCP1027 characteristics: ..............................................................10 5.4 Power Factor Correction: NCP1605 .....................................................10 6 Specifications..............................................................................................10 7 Reference Design Performance Summary .................................................11 7.1 Efficiency ..............................................................................................11 7.2 Standby Power .....................................................................................11 7.3 Standards and Regulations ..................................................................11 8 Board Picture ..............................................................................................14 9 Schematic ...................................................................................................15 10 Board Layout ..............................................................................................16 11 Bill Of Material ............................................................................................20 12 Appendix.....................................................................................................24 12.1 NCP1396 ..............................................................................................24 12.2 NCP1605 ..............................................................................................24 12.3 NCP1027 ..............................................................................................24 12.4 References ...........................................................................................24 3 1 Overview This reference document describes a built-and-tested, GreenPointTM solution for an LCD TV power supply. The reference design circuit consists of one single-sided 130 mm x 200 mm printed circuit board designed to fit into an LCD TV. Height is 25 mm. An overview of the entire circuit is provided by Figure 1. As shown in that figure, ON Semiconductor devices are available for every block of the LCD TV power supply; and by judicious choice of design tradeoffs, optimum performance is achieved at minimum cost. Figure 1 4 2 Introduction From Tubes to Flat TVs Since 1936 when the BBC begins the world’s first public-television broadcast in London, the TV world made huge progress. A few examples: • 1953: color broadcasting • 1956: first VCR • 1962: first television satellite (Telstar) • 1981: NHK (Japan) demonstrates an HDTV system But “the idea of sitting in front of a box in your living room is becoming obsolete. For the TV industry, technology is creating vast opportunities”. – Newsweek, June 2005. Obviously Flat Panel Display (FPD) is one of the technologies that will drive these opportunities: • High Definition TV (HDTV). • Digital TV: The analog TV signal will be shut down soon in Europe and in North America as it is replaced by Digital Terrestrial signal. Satellite and Cable Digital decoders are already very common. • Bigger screen, smaller form factor: Now that we all have seen these fancy screens, who is willing to go back to the old big bulky box? FPD includes both LCD (Liquid Crystal Display) and Plasma technologies. 3 LCD TV Power Supply Requirements In large FPD (> 30”), the power supply is generally internal as it requires from 200 W to 600 W. A few voltages are needed to supply the different blocks such as backlighting, audio, video, demodulation, etc. Because the input power is above 75 W, the application has to be compliant with the IEC1000-3-2 class D standard. Power Factor Correction is therefore needed. Because the main power supply has to be optimized for higher efficiency and slimmer form factor, an active PFC must be implemented to limit the variation of the input voltage in front of the main PSU. Most of the LCD TV power supplies are designed to cope with universal mains: 85 Vac to 265 Vac, 47-63 Hz. A 5 V auxiliary power supply is needed to supply the microcontroller that must remain alive in standby mode. 3.1 Standby mode Having a low consumption in standby mode is a key requirement. Recent studies and in situ measurement campaigns have indicated that in the average EU household, between 5% and 10% of its total yearly electricity consumption is due to the standby mode of consumer electronics equipment and other apparatus. TV sets are obviously one of the biggest contributors. 5 In 1997, the European Commission concluded a negotiated agreement with individual consumer electronics manufacturers and the EU trade association EACEM, to reduce the stand-by losses of TVs and VCRs. In the year 2003 a new agreement for TVs and DVDs was concluded. Many initiatives have been taken around the world. And even if these requirements are not yet standards, most of the manufacturers have already applied these rules in their designs. Hereinafter the list of the most important initiatives: Region / Country China Korea European Union European Union Europe US Program name Requirements for Televisions CSC Energy Saving 3W 3W 1W 9 W with a STB EU Eco-Label EU Code of Conduct GEEA 1 Watt Executive Order Demoboard compliance Yes Yes Yes 3 W with a STB Yes 1W Yes 1W Yes Energy Star Product Category Phase I Standby Mode (effective 7/1/02) Phase II Standby Mode (effective 7/1/04) Phase III Standby Mode (effective 7/1/05) TV < 3 Watts Analog: < 1 Watt Digital: < 3 Watts < 1 Watt Television Monitor Analog: < 1 Watt Digital: < 3 Watts < 1 Watt Component Television Unit < 3 Watts < 1 Watt TV/VCR Combination Unit < 6 Watts < 1 Watt TV/DVD, VCR/DVD, and TV/VCR/DVD Combinations < 4 Watts < 1 Watt 3.2 Active mode According to the American Department of Energy’s (DOE) Energy Information Administration (EIA), by 2015 electronics products may account for 18% of total household electricity demand – this will exceed lighting and appliances as a percent of total residential electricity consumption. This is linked to the fact that TVs are ‘on’ more hours per day. According to Nielsen Media Research (NMR), for the September 2004 – September 2005 viewing season, the average U.S. household was tuned into television an average of 8 hours and 11 minutes per day. And this does not take into account additional hours that a TV is on due to peripheral devices such as game consoles, digital video recorders, and increased availability of cable/satellite programming. 6 Furthermore most of the flat panel televisions being purchased by consumers will consume double or more the active mode power of the smaller CRT televisions that they are replacing. Much of this differential in power consumption is simply attributable to the increased size of the products being sold now. As a consequence of these market evolutions, Energy star / EPA intend to develop energy efficiency specifications for TVs that are performance-based and technology neutral. (See 4 Limitations of existing solutions One of the key differentiating factors of a flat TV over a classical TV is the thickness of the cabinet - the thinner the better. But one must keep in mind: • The amount of power to be delivered is relatively large: the number of watts per cm3 is much larger compared to the one in a CRT TV. • Because the TV will be used in the living room, audible noise can be a problem, and the use of fans is limited. • Cost is key in the very competitive environment of the consumer electronics world. • The panel, the power supply and the audio card are close to each other; therefore EMI and pollution could severely alter the picture and sound quality. High efficiency and a low EMI signature at a reasonable cost are required, and classical topologies can hardly combine these needs: • Flyback: transformer usage is far from being optimal • Forward: the EMI signature is not reduced to its minimum 5 Overcoming limitations with NCP1605 / NCP1396 / NCP1027 5.1 Architecture Overview First, the use of active power factor correction in the front-end allows system optimization because the PFC output voltage is well regulated. The implementation of the active PFC front end is done using the NCP1605. The SMPS stage uses a Half Bridge Resonant LLC topology. This topology offers a number of advantages as demonstrated in the schematics and the results. It improves efficiency, reduces EMI signature and provides better magnetic utilization. The NCP1396 controller is used to implement the most effective control scheme of Half Bridge Resonant LLC converter. For the standby output circuit, a higher integration level is made feasible by using the NCP1027, a PWM regulator that also incorporates an appropriate switch to provide all functionality in one package. In summary, the architecture selected for this reference design allows design optimization so that the desired performance is achieved without increasing the component costs and circuit complexity too much. The performance results section demonstrates the performance. 7 5.2 Main power supply: NCP1396 5.2.1 Half Bridge Resonant LLC topology The Half Bridge Resonant LLC topology, that is a member of the Series Resonant Converters (SRC), begins to be widely used in consumer applications such as LCD TVs or plasma display panels. In these particular applications, the output power level ranges from 200 W up to 600 W. The Half Bridge Resonant LLC converter is an attractive alternative to the traditional Half Bridge (HB) topology for several reasons. Advantages include: • ZVS (Zero Voltage Switching) capability over the entire load range: Switching takes place under conditions of zero drain voltage. Turn-on losses are thus nearly zero and EMI signature is improved compared to the HB, which operates under hard-switching conditions. • Low turnoff current: Switches are turned off under low current conditions, and so the turn-off losses are also lowered compared to the HB topology. • Zero current turnoff of the secondary diodes: When the converter operates under full load, the output rectifiers are turned off under zero-current conditions, reducing the EMI signature. • No increased component count: The component count is virtually the same as the classical half bridge topology. Figure 2 is the structure of this resonant converter. A 50 % duty-cycle half-bridge delivers high-voltage square waves swinging from 0 to the input voltage VIN to a resonating circuit. By adjusting the frequency via a voltage-controlled oscillator (VCO), the feedback loop can adjust the output level depending on the power demand. Vin Qb Vout 1 Cs N:1 Ls 6 5 7 Lm C Q RL 9 Figure 2 The resonating circuit is made of a capacitor, Cs, in series with two inductors, Ls and Lm. One of these inductors, Lm, represents the magnetizing inductor of the transformer and creates one resonating point together with Ls and Cs. The reflection of the load over this inductor will either make it disappear from the circuit (Lm is fully short-circuited by a reflected RL of low value at heavy load currents) or will make it stay in series with the 8 series inductor Ls in light load conditions. As a result, depending on the loading conditions, the resonant frequency will move between a minimum and a maximum: The frequency of operation depends on the power demand. For a low power demand, the operating frequency is rather high, away from the resonating point. To the contrary, at high power, the control loop reduces the switching frequency and approaches one of the resonant frequencies to deliver the necessary amount of current to the load. This topology behaves like a frequency dependent divider. Figure 3: Substitutive schematic of the LLC resonant converter Rac = 8 ⋅ RL π ⋅ n 2 ⋅η 2 Where: RL is the real loading resistance n is the transformer turns ratio η is the expected efficiency 5.2.2 Protections The NCP1396 differs from other resonant controllers thanks to its protection features. The device can react to various inputs like: • Fast events input: Like an over-current condition, a need to shutdown (sleep mode) or a way to force a controlled burst mode (skip cycle at low output power). • Slow events input: This input serves as a delayed shutdown, where an event like a transient overload does not immediately stop pulses but starts a timer. If the event duration lasts longer than what the timer imposes, then all pulses are disabled. 5.3 Standby Power Supply: NCP1027 A NCP1027 is used for the auxiliary flyback power supply. This power supply provides a stable Vcc to supply the NCP1653, the NCP1395 and the NCP5181 under all operating conditions, but it also supplies 5 V to the devices that must remain alive in standby mode. 9 5.3.1 NCP1027 characteristics: • • • • • Brown-out detection: The controller will not allow operation in low mains conditions. You can adjust the level at which the circuit starts or stops operation. Ramp compensation: Designing in Continuous Conduction Mode helps to reduce conduction losses. However, at low input voltage (85 Vac), the duty-cycle might exceed 50% and the risk exists to enter a subharmonic mode. A simple resistor to ground injects the right compensation level. Over power protection: A resistive network to the bulk reduces the peak current capability and accordingly harnesses the maximum power at high line. As this is done independently from the auxiliary Vcc, the design gains in simplicity and execution speed. Latch-off input: Some PC manufacturers require a complete latch-off in the presence of an external event, e.g., over temperature. The controller offers this possibility via a dedicated input. Frequency dithering: The switching frequency (here 65 kHz) is modulated during operation. This naturally spreads the harmonic content and reduces the peak value when analyzing the signature. 5.4 Power Factor Correction: NCP1605 The NCP1605 is a PFC driver designed to operate in fixed frequency, discontinuous Conduction Mode (DCM). In the most stressful conditions, Critical Conduction Mode (CRM) can be achieved without power factor degradation and the circuit could be viewed as a CRM controller with a frequency clamp (given by the oscillator). Finally, the NCP1605 tends to give the best of both modes without their respective drawbacks. Furthermore, the circuit incorporates protection features for a rugged operation together with some special circuitry to lower the power consumed by the PFC stage in no load conditions. 6 Specifications Input Voltage: Universal input 85 Vac to 265 Vac, 47-63 Hz Main Power Supply Output voltages: • 24 V / 6 A • 12 V / 3 A • 30 V / 1 A Standby Power Supply: • 5 V / 2.5 A • Pin < 1 W when the consumption on the 5 V is 100 mA 10 7 Reference Design Performance Summary 7.1 Efficiency TV_220W Efficiency (Load 5V/0-2.5A,30V/1A,12V/3A,24V/6A) 95 EFFICIENCY [%] 94 93 92 91 90 89 88 87 86 85 84 83 Input [Vac] 115 82 81 Input [Vac] 230 80 0.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 LOAD [A] 7.2 Standby Power Input Voltage Standby load Power consumption 115 V 0.5 W 0.735 W 230 V 0.5 W 0.873 W 7.3 Standards and Regulations Specification EN61000-3-2 – Limits for harmonic current emissions Class D 11 Result Pass Conducted Emissions @ 230 Vac 12 Conducted Emissions @ 110 Vac 13 8 Board Picture 14 9 Schematic 15 10 Board Layout 16 17 18 19 11 Bill Of Material Designator B1 Quantity Description Tolerance Footprint Substitution Allowed Lead Free Manufacturer Manufacturer Part No. KBU Fairchild KBU8M Yes Yes CPOL-EUE5-10.5 Rubycon 35ZL470M10X20 Yes Yes Bridge rectifier KBU8M 11 Electrolytic capacitor 470uF/35V C10 1 Electrolytic capacitor 220uF/63V 10% CPOL-EUE5-10.5 Rubycon 63 YXA220M 10×16 Yes Yes C11 1 MKP Capacitor 33nF/630Vdc 20% C-EU150-084X183 Arcotronics R73-0.033uF 15 630V Yes Yes C1, C2, C3, C8, C9, C12, C13, C14, C15, C45, C46 1 Value 20% C16 1 Electrolytic capacitor 220uF/35V 20% CPOL-EUE5-10.5 Rubycon 35 RX30220M 10×12.5 Yes Yes C17, C23, C50 3 Ceramic capacitor SMD 10n 10% C-EUC1206 Epcos B37872A5103K060 Yes Yes C18 1 Ceramic capacitor 220p 10% C-EU050-045X075 Panasonic ECKA3A221KBP Yes Yes C19, C28, C33, C34, C38 5 C20 1 Ceramic capacitor SMD 2u2 NU 10% C-EUC1206 C-EUC1206 Epcos B37872K9225K062 Yes Yes C21, C35, C54 3 Ceramic capacitor SMD 1uF 10% C-EUC1206 Epcos B37872K0105K062 Yes Yes C22 1 Ceramic capacitor SMD 39n 10% C-EUC1206 Epcos B37872K5393K060 Yes Yes C24 1 Ceramic capacitor SMD 390p 5% C-EUC1206 Epcos B37871K5391J060 Yes Yes C25, C26, C29, C37, C40, C42, C53 7 Ceramic capacitor SMD 100n 10% C-EUC1206 Epcos B37872A5104K060 Yes Yes C27 1 Ceramic capacitor SMD 1n 10% C-EUC1206 Epcos B37872A5102K060 Yes Yes C30 1 Ceramic capacitor SMD 22n 10% C-EUC1206 Epcos B37872A5223K060 Yes Yes C32 1 Ceramic capacitor SMD 68n 10% C-EUC1206 Epcos B37872A5683K060 Yes Yes C36 1 Electrolytic capacitor 4u7/35V 20% CPOL-EUE2-5 Rubycon 35 MH54.7M 4×5 Yes Yes C39 1 Ceramic capacitor SMD 2n2 10% C-EUC1206 Epcos B37872A5222K060 Yes Yes C4, C47 2 Electrolytic capacitor 220uF/25V 20% CPOL-EUE5-10.5 Rubycon 25 NXA220M 10×12.5 Yes Yes C41 1 C43 1 MKP Capacitor 10nF/400Vdc 20% C-EU075-032X103 Epcos B32520C6103M289 Yes Yes C48 1 Electrolytic capacitor 1u 20% CPOL-EUE2-5 Rubycon 50 MH51M 4×5 Yes Yes C49 1 Electrolytic capacitor 100uF/35V 20% CPOL-EUE5.5-8 Rubycon 50 PK100M 8×11.5 Yes Yes C5, C31, C44 3 MKP Capacitor 1uF/275Vac 20% C-EU225-108X268 Arcotronics R46KM410000N1M Yes Yes C51 1 Electrolytic capacitor 10uF/35V 20% CPOL-EUE2.5-6 Rubycon 50 MH710M 6.3×7 Yes Yes C52 1 Ceramic capacitor SMD 100p 20% C-EUC1206 Epcos B37871K5101J060 Yes Yes C6 1 Electrolytic capacitor 100uF/450V 20% EC18L40'22L35' Rubycon 450 VXG100M 22×30 Yes Yes C7 1 Electrolytic capacitor 100uF/450V 20% EC18L40'22L35_90' Rubycon 450 VXG100M 22×30 Yes Yes CY1, CY2, CY3 3 Ceramic capacitor 2n2/Y1 20% CYYC10B4 Murata DE1E3KX222MA5B Yes Yes D1, D11, D12, D15, D18 5 Diode MMSD4148 SOD-123 ON semiconductor MMSD4148T1G No Yes D10 1 Dual diode MBRF20100CT TO-220 ON semiconductor MBRF20100CTG No Yes D13, D22, D24 3 Diode MURA160SMD SMA ON semiconductor MURA160T3G No Yes NU 20 C-EU150-064X183 Comments D14 1 D16 1 NU Zener diode 3V3 D17 1 D19 1 Zener diode 7V5 D2 1 Diode 1N5408 SOD-123 5% SOD-123 5% NU ON semiconductor MMSZ3V3T1G No Yes SOD-123 ON semiconductor Axial Lead 9.50x5.30mm ON semiconductor MMSZ7V5T1G No Yes 1N5408G No Yes No Yes SOD-123 D20 1 NU SMA D21 1 Diode MBRS340T3 SMC ON semiconductor MBRS320T3G D23 1 Zener diode 18V SOD-123 ON semiconductor MMSZ18T1G No Yes D3, D5, D6, D7, D8, D9 6 Diode MBRS4201T3G SMC ON semiconductor MBRS4201T3G No Yes 5% D4 1 Diode MSR860 TO-220 ON semiconductor MSR860G No Yes F1 1 FUSEHOLDER, 20X5MM SH22,5A SH22,5A Multicomp MCHTC-15M Yes Yes HEATSING_1 1 COVER, PCB FUSEHOLDER 1 FUSE, MEDIUM DELAY 4A 4A 1 Heatsing SK 454 150 SA Multicomp MCHTC-150M Yes Yes BUSSMANN TDC 210-4A Yes Yes SK454/150_GND Fischer Elektronik SK 454 150 SA Yes Yes HEATSING_2 1 Heatsing SK 454 100 SA SK454/100_GND Fischer Elektronik SK 454 100 SA Yes Yes IC1 1 PFC controller NCP1605 SOIC 16 ON semiconductor NCP1605DR2G No Yes IC2, IC6 2 Programmable Precision Reference TL431SO8 SOIC-8 ON semiconductor NCV431AIDR2G No Yes IC3 1 Resonant controller NCP1396A SOIC 16 ON semiconductor NCP1396ADR2G No Yes IC4 1 Programmable Precision Reference TLV431A SOT-23 ON semiconductor TLV431ASN1T1G No Yes IC5 1 HV Switcher for Medium Power Offline SMPS NCP1027 PDIP (8 Minus Pin 6) ON semiconductor NCP1027P065G No Yes Yes J1, J3 2 Conector 22-23-2071 MOLEX-7PIN Molex 22-23-2071 Yes J2 1 Conector 22-23-2101 MOLEX-10PIN Molex 22-23-2101 Yes Yes J4 1 Conector 22-23-2051 MOLEX-5PIN Molex 22-23-2051 Yes Yes J5 1 Conector LP7.5/2/903.2 OR Weidmueller Weidmueller LP7.5/2/903.2 OR Yes Yes L1 1 Inductor 2702.0012A (260uH) 10% Pulse_2702 Pulse 2702.0012A Yes Yes L2 1 EMI filter 7mH 10% TLBI Pulse 6001.0069 Yes Yes L3 1 L4 1 Inductor 100u 20% DO5040H_100 Coilcraft DO5040H-104MLB Yes Yes OK1, OK2, OK3 3 Opto-coupler PC817 PC817SMD AVAGO TECHNOLOGIES HCPL-817-300E Yes Yes Q1 1 NPN Dual General Purpose Transistor BC848CDW SOT−363 6 LEAD ON semiconductor BC848CDW1T1G No Yes NU TLBI Q2, Q4, Q6 3 NPN General Purpose Transistor BC817-16LT1 SOT-23 ON semiconductor BC817-16LT1G No Yes Q3 1 NPN General Purpose Transistor BC846B SOT-23 ON semiconductor BC846BLT1G No Yes 21 Q5 1 R1,R33, R41 3 NU SOT-23 Resistor SMD 10R 1% R-EU_R1206 Vishay RCA120610R0FKEA Yes Yes Yes R11 1 Resistor trough hole 0.1R 1% R-EU_0617/22 Vishay PAC300001007FAC000 Yes R12, R13 2 Resistor SMD 6k8 1% R-EU_R1206 Vishay RCA12066K80FKEA Yes Yes R14 1 Resistor SMD 200k 1% R-EU_R1206 Vishay RCA120620K0FKEA Yes Yes R15 1 Resistor SMD 47k 1% R-EU_R1206 Vishay RCA120647K0FKEA Yes Yes R16 1 Resistor SMD 1k3 1% R-EU_R1206 Vishay RCA12061K30FKEA Yes Yes R17 1 Resistor SMD 910R 1% R-EU_R1206 Vishay RCA1206910RFKEA Yes Yes R19, R32, R37, R39, R72 5 Resistor SMD 1k 1% R-EU_R1206 Vishay RCA12061K00FKEA Yes Yes R2, R6 2 Resistor trough hole 2M2 1% R-EU_0204/7 Vishay MRS16000C2204FCT Yes Yes R20 1 Resistor SMD 18k 1% R-EU_R1206 Vishay RCA120618K0FKEA Yes Yes R21, R22, R23, R49 4 NU R-EU_R1206 R24 1 Varistor VDRH10S275TSE VARISTOR10K300 Vishay 2381 584 T271S Yes Yes R25 1 Resistor SMD 11k 1% R-EU_R1206 Vishay RCA120611K0FKEA Yes Yes R26, R69 2 Resistor SMD 180k 1% R-EU_R1206 Vishay RCA1206180KFKEA Yes Yes R27 1 Resistor SMD 5k1 1% R-EU_R1206 Vishay RCA12065K10FKEA Yes Yes R28 1 Resistor SMD 3k3 1% R-EU_R1206 Vishay RCA12063K30FKEA Yes Yes R29 1 Resistor SMD 470R 1% R-EU_R1206 Vishay RCA1206470RFKEA Yes Yes R3, R5 2 Resistor SMD 2M2 1% R-EU_R1206 Vishay RCA12062M20FKEA Yes Yes R30 1 Resistor SMD 220k 1% R-EU_R1206 Vishay RCA1206220KFKEA Yes Yes R31, R71 2 Resistor SMD 100R 1% R-EU_R1206 Vishay RCA1206100RFKEA Yes Yes R34, R76 2 Resistor SMD 18k 1% R-EU_R1206 Vishay RCA120618K0FKEA Yes Yes R35 1 Resistor SMD 68k 1% R-EU_R1206 Vishay RCA120668K0FKEA Yes Yes R36 1 Resistor SMD 82k 1% R-EU_R1206 Vishay RCA120682K0FKEA Yes Yes 1 Resistor SMD 20k 1% R-EU_R1206 Vishay RCA120620K0FKEA Yes Yes 12 Resistor SMD 10k 1% R-EU_R1206 Vishay RCA120610K0FKEA Yes Yes R38 R4, R7, R10, R18, R44, R51, R55, R56, R60, R73, R78, R79 R40 1 Resistor SMD 1M 1% R-EU_R1206 Vishay RCA12061M00FKEA Yes Yes R42 1 Resistor SMD 51k 1% R-EU_R1206 Vishay RCA120651K0FKEA Yes Yes R43 1 Resistor SMD 18R 1% R-EU_R1206 Vishay RCA120618R0FKEA Yes Yes R45 1 Resistor SMD 2k7 1% R-EU_R1206 Vishay RCA12062K70FKEA Yes Yes R46 1 Resistor SMD 2k2 1% R-EU_R1206 Vishay RCA12062K20FKEA Yes Yes R47 1 Resistor SMD 3k3 1% R-EU_R1206 Vishay RCA12063K30FKEA Yes Yes 22 R48 1 Resistor SMD 5k6 1% R-EU_R1206 Vishay RCA12065K60FKEA Yes Yes R50 1 Resistor SMD 8k2 1% R-EU_R1206 Vishay RCA12068K20FKEA Yes Yes R52 1 Resistor SMD 12k 1% R-EU_R1206 Vishay RCA120612K0FKEA Yes Yes R53 1 Resistor SMD 150k 1% R-EU_R1206 Vishay RCA1206150KFKEA Yes Yes R54 1 Resistor SMD 15k 1% R-EU_R1206 Vishay RCA120615K0FKEA Yes Yes R57 1 Resistor SMD 1k5 1% R-EU_R1206 Vishay RCA12061K50FKEA Yes Yes R58 1 Resistor SMD 6k2 1% R-EU_R1206 Vishay RCA12066K20FKEA Yes Yes R59, R61, R62 3 Resistor SMD 820R 1% R-EU_R1206 Vishay RCA1206820RFKEA Yes Yes R63, R67 2 Resistor SMD 1M2 1% R-EU_R1206 Vishay RCA12061M20FKEA Yes Yes R64 1 Resistor SMD 4k7 1% R-EU_R1206 Vishay RCA12064K70FKEA Yes Yes R65 1 Resistor trough hole 150k 1% R-EU_0207/10 Vishay MRS25000C1503FCT Yes Yes R66 1 Resistor trough hole 47R 1% R-EU_0207/10 Vishay MRS25000C4709FCT Yes Yes R68 1 Thermistor PTCCL09H191HBE is type for 230V Thermistor PTCCL13H321HBE width range PTCCL09H191HBE PTCCL13H321HBE P594 Vishay 2381 661 51913 2381 662 53213 Yes Yes R70 1 Resistor SMD 3k9 1% R-EU_R1206 Vishay RCA12063K90FKEA Yes Yes R74 1 Resistor SMD 360k 1% R-EU_R1206 Vishay RCA1206360KFKEA Yes Yes R75 1 Resistor SMD 470k 1% R-EU_R1206 Vishay RCA1206470KFKEA Yes Yes R77 1 Resistor SMD 75k 1% R-EU_R1206 Vishay RCA120675K0FKEA Yes Yes R8, R9 2 Resistor SMD M22 1% R-EU_R1206 Vishay RCA1206220KFKEA Yes Yes R80 1 Resistor trough hole, high voltage 4M7 5% R-EU_0414/15 Vishay VR37000004704JA100 Yes Yes T1, T3 2 MOSFET transistor STP12NM50FP TO-220 STMICROELECTRONICS STP12NM50FP Yes Yes T2 1 MOSFET transistor STP20NM60FP TO-220 STMICROELECTRONICS STP12NM50FP Yes Yes TL1, TL2, TL3, TL4 4 Inductor 2u2 20% RFB0807 Coilcraft RFB0807-2R2L Yes Yes TR1 1 Resonant transformer 2652.0017A 10% 2652 Pulse 2652.0017A Yes Yes TR2 1 Stand by transformer 2362.0031B 10% 2362 Pulse 2362.0031B Yes Yes 23 12 Appendix 12.1 NCP1396 • • • Datasheet AND8255: A Simple DC SPICE Model for the LLC Converter Excel spreadsheet to help LLC circuit design 12.2 NCP1605 • • • Datasheet AND8281: Implementing the NCP1605 to Drive the PFC Stage of a 19 V / 8 A Power Supply NCP1605 PFC Boost Design Worksheet 12.3 NCP1027 • • • Datasheet AND8241: A 5 V/2 A Standby Power Supply for Intel Compliant ATX Applications NCP1027 Brownout Computing 1 2.4 References Draft Commission Communication on Policy Instruments to Reduce Stand-by Losses of Consumer Electronic Equipment (19 February 1999) http://energyefficiency.jrc.cec.eu.int/pdf/consumer_electronics_communication.pdf • European Information & Communications Technology Industry Association • http://www.eicta.org/ • http://standby.lbl.gov/ACEEE/StandbyPaper.pdf CSC (China): • http://www.cecp.org.cn/englishhtml/index.asp Top Runner (Japan): • http://www.eccj.or.jp/top_runner/index.html EU Eco-label (Europe): • http://europa.eu.int/comm/environment/ecolabel/product/pg_television_en.htm EU Code of Conduct (Europe): • http://energyefficiency.jrc.cec.eu.int/html/standby_initiative.htm GEEA (Europe): • http://www.efficient-appliances.org/ • http://www.efficient-appliances.org/Criteria.htm Energy Star: • http://www.energystar.gov/ • http://www.energystar.gov/index.cfm?c=product_specs.pt_product_specs • http://www.energystar.gov/index.cfm?c=revisions.tv_vcr_spec 1 Watt Executive Order: http://oahu.lbl.gov/ • • http://oahu.lbl.gov/level_summary.html 24