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NCP1605LCDTVGEVBNCP1605/1396 LCD TVEvaluation Board User'sManualhttp://onsemi.comEVAL BOARD USER’S MANUALIntroductionThis document provides a detailed description of theimplementation of an LCD TV power supply. The LDC TVsupply unit exhibits high efficiency, low EMI noise and a lowprofile construction. The board contains DCM/CCM PFCfront stage, 210 W LLC power stage and 12.5 W standbyflyback converter.The design requirements for our LCD TV power unit areas follows:RequirementTimer Based Fault ProtectionThe converter stops operation after a programmed delaywhen the protection is activated. This protection can beimplemented as a cumulative or integrating characteristic.Thus, under transient load conditions the converter outputwill not be turned off, unless the extreme load conditionexceeds the timeout.Common Collector Optocoupler ConnectionMinMaxUnitInput Voltage90265VacOutput Voltage 1 12VdcOutput Current 103AOutput Voltage 2 24VdcOutput Current 206AOutput Voltage 3 30VdcOutput Current 301AOutput Voltage Standby Output 5VdcOutput Current Standby Output02.5AThe high side driver features a traditional bootstrapcircuitry, requiring an external high voltage diode for thecapacitor refueling path. The device incorporates an upperUVLO circuitry that guarantees enough Vgs is available forthe upper side MOSFET.Total Output Power0222.5WAdjustable Dead Time (DT)Total No Load Consumption for0.5 W Load on the StandbyOutput 1WNOTE:The open collector output allows multiple inputs on thefeedback pin i.e. over current sensing circuit, overtemperature sensor, etc. The additional input can pull up thefeedback voltage level and take over the voltage feedbackloop.600 V High Voltage Floating DriverDue to a single resistor wired between DT pin and ground,the user has the option to include needed dead time, helpingto fight cross conduction between the upper and the lowertransistor.Only 24 V output is regulated in this version of the board.Additional output(s) regulation can be assured by addingfeedback resistors to desired output (or outputs forpercentage weight).Adjustable Minimum and Maximum FrequencyExcursionUsing a single external resistor, the designer can programits lowest frequency point, obtained in lack of feedbackvoltage (during the startup sequence or in short circuitconditions). Internally trimmed capacitors offer a 3%precision on the selection of the minimum switchingfrequency. The adjustable maximum frequency is less precise( 15%). Please refer to the NCP1396A/B data sheet fordetailed description of all mentioned and additional features.The NCP1396A resonant mode controller has beenselected for this application because the soft start absence onthe fast fault input offers an easy implementation of the skipcycle mode. This helps to assure regulation of the resonantconverter under no load conditions. The NCP1396A offersmany other features that are advantageous for our application.Brown Out (BO) Protection InputThe input voltage of the resonant converter, when divideddown, is permanently monitored by the Brownout pin. If thevoltage on the bulk capacitor falls outside of the desiredoperating range, the controller drive output will be shut off.This feature is necessary for an LLC topology that uses PFCstage without PFC OK control output. In our case the BOinput is used as an enabling input and is fully controlled by thefront stage controller output (PFC OK). Semiconductor Components Industries, LLC, 2012October, 2012 Rev. 2Detailed Evaluation Board Connection DescriptionA schematic of the proposed LCD TV power supply isshown in Figure 1. As already mentioned, the supply containsthree blocks: a PFC front stage, an LLC converter and anauxiliary flyback converter that powers a TV set duringstandby and provides bias power for PFC and LLC controlcircuits during normal operation.1Publication Order Number:EVBUM2152/D
NCP1605LCDTVGEVBFigure 1. Schematic of the NCP1396A LCD TV Applicationhttp://onsemi.com2
NCP1605LCDTVGEVBPFC Front Stagevoltage range is restricted by the Brown Out sensingnetwork R64, R68, R70, R77 and C48. The NCP1027 switcherfeatures adjustable ramp compensation capability resistorR78. Feedback loop is accomplished in the standard way: theoutput voltage level is regulated by the IC6 to the valuewhich is defined by resistors R74 and R80. Bias current foroptcoupler OK3 and regulator is provided from the standbysupply output using resistors R72 and R73. Resistors R75 andR79 are used to stabilize the maximum output power levelwith bulk voltage evaluation (CS comparator delaycompensation). A standard RCD voltage clamp (R66, R67,C41, D21) is installed on the switcher drain to limit its voltageto safe level. There is an optional layout on the board so theTVS (D19) can be used instead of the RCD clamp. Thissolution further decreases standby power consumption,however, price is slightly higher. Voltage from auxiliarywinding, which is used to power the switcher is also used tofeed up the PFC front stage and the main LLC convertercontrol circuits. This voltage is limited by a simple zenerregulator (D22, Q7, R76 and C46) and can be inhibited by theOK2 action. Standby mode can be activated either bypositive or negative logic signals (Q5 or Q6 assembled).Please refer to the application note AND8241/D for adetailed explanation on how to design a Standby flybackconverter using the NCP1027 switcher.The NCP1605 (IC1) PFC controller is used for PFC frontstage control. This front stage works either in fixedfrequency discontinues mode or critical conduction modedepends on the line and load conditions. Capacitors C42,C30, CY1, CY2 with common mode choke L9, inductors L6,L7 and varistor R28 form the EMI filter, which suppressesnoise conducted to the mains. A bridge rectifier B1 is usedto rectify the input AC line voltage. Capacitor C5 filters thehigh frequency ripple current, which is generated by the PFCoperation. In this application a classical PFC boost topologyis used. The PFC power stage is formed by inductor L2,MOSFET switch Q2, diode D4, bulk capacitors C6, C7 andinrush current bypassing diode D2. The current in the PFCstage is monitored by current sense network R13, R14 andR15. Right input voltage operating range is adjusted by theBrown Out sensing network R2, R5, R10, R16, R36 and C21.Output voltage of the PFC stage is regulated to a nominal395 Vdc via the feedback network R3, R6, R11, R22, R29 andR30. Sensing network described above is also used tomonitor an overvoltage condition on the PFC output usingthe NCP1605 OVP pin. PFC regulation loop bandwidth islimited by the capacitor C22. The sensitivity of the zerocurrent detection circuitry is given by the resistor R39 value.Capacitor C19 and resistor R40 are used to control themaximum Q2 switch on time. Capacitor C24 dictates theDCM operating frequency. Skip mode of the PFC front stageis initiated by the NCP1605 controller when the voltage onthe STBY pin is lower than 0.3 V. Since the LLC stagevoltage feedback and also bulk capacitor voltage haveopposing reaction function (increasing when output loaddecreases), the divided (R35, R43 and C25) LLC stageprimary current information has been used to trigger thePFC skip mode during light load conditions.The controller receives the VCC voltage from standbystage when standard operation mode is enabled by the TV setapplication.Please refer to the application note AND8281/D for adetailed explanation on how to design a PFC front stageusing the NCP1605 controller.LLC Power StageAs previously mentioned, the NCP1396A (IC3) resonantmode controller is used to control the main SMPS unit. Thepower stage of the LLC converter is formed by bulkcapacitors C6, C7, MOSFETs Q1, Q3, transformer TR1 andresonant capacitor C11. MOSFETs are driven directly by thecontroller. Resistors R19 and R20 damp the gate chargingcircuit to suppress overshoots on the gates and regulate EMInoise. Bootstrap diode D14 is charging the bootstrapcapacitor C28 via resistor R42. The bootstrap capacitorpowers a floating driver when high side MOSFET is turnedon. Safety resistors R4 and R12 are used to protect MOSFETs(during the experiments on the bench, for instance, when IC3is removed).Center tapped windings on 12 V and 24 V outputsincrease the converter efficiency. A bridge rectifier is usedfor 30 V output. Different shottky diode types (D3 with D5,D6 through D10 and D11) are used for secondary rectificationaccording to output voltage, power losses and also shortcircuit capability (not to damage diode during hard short onthe output). The low ESR, high temperature electrolyticcapacitors C1 through C4, C8 through C10, C12 through C16,together with inductors L1, L4, and L5 serve as filters forcorresponding outputs. The secondary voltage regulator IC2regulates the output voltage to 24 V, which is value adjustedby resistor divider composed by R24, R48 and R49. If needed,there can be optionally used feedback from other secondaryoutput(s) (R26 and R27 are included in the board layout). Onthe primary side, the optocoupler works in the connectionwith a common collector which also allows an easyimplementation of the current regulation loop. MaximumStandby SupplyAn ON Semiconductor NCP1027 monolithic switcher(IC5) is used for auxiliary (or standby) power stage providea cost effective solution, needed output power and lowstandby consumption, since this switcher offers skip modecapability under light load conditions. The nominal outputpower of this converter is 12.5 W. The unit is connecteddirectly to the bulk capacitors so during standby conditionsit operates from rectified mains. During normal operatingconditions the switcher is energized by higher voltage (PFCfront stage is working). After the start (that is assured byinternal current supply) the switcher is powered from theauxiliary winding. Diode D23 is used for rectification andcapacitor C47 to filter auxiliary voltage. Resistor R71 limitsthe ICC current so the auto recovery OVP is not activated forthe correct VCC voltage. The appropriate operating bulkhttp://onsemi.com3
NCP1605LCDTVGEVBconverters, offers extra high leakage inductance valuethanks to a special windings arrangement (see evaluationboard photo in Figure 24). The leakage inductance serves asa resonant inductance, which results in a cost effectivesolution since no additional inductor is needed to form aresonant tank. Specified parameters of the mentionedtransformer are as follows:current through the optocoupler transistor is adjusted by aresistor R33. To speed up the regulation response, resistorR47 is connected to the feedback pin.Capacitor C34 defines the soft start length. Note that thecurrent regulation loop is used in this power stage so it takescontrol during the startup and affects the soft start action.Resistors R53, R55 and R57 define maximum operatingfrequency, minimum operating frequency and dead time.The operation/fault time period during the overload isdictated by C35 and R54 values.The LLC power stage operation is conditioned to thecorrect PFC front stage operation indicated by the PFC OKsignal. This signal, divided down by resistors R32 and R56,enables the NCP1396A controller when the bulk voltage isin the right range (PFC stage reached regulation).Resistor divider R51 and R58 with bypass capacitor C37are used to prepare skip mode during light or no loadconditions on the power stage output. This skip mode limitsthe maximum needed operating frequency of the converterand improves no load efficiency of the LLC stage.As already mentioned, the current feedback loop is usedin this design. It limits the primary current of the power stageduring overload and helps to implement hick up mode.Primary current is sensed using charge pump R17, C18, D12,D13. Output of this charge pump is divided and filtered byR31, R18 and C17. Maximum value of this voltage (and thusalso the primary current) is regulated to 1.24 V by IC4regulator. The compensation of current regulation loop isaccomplished by C31 capacitor. Zener diode D15 is used tolower maximum voltage on IC4. Since we need to bring upthe NCP1396 feedback pin to increase the operatingfrequency during overload, transistor Q4 with resistors R38and R44 are used to perform inversion. Output voltage on theQ4 collector is limited by zener diode D18 to 7.5 Vmaximally. This voltage divided down by resistors R52 andR59 triggers the slow fault input in case of an overload andalso drives the NCP1396A feedback pin via diode D17. Thisdiode assures that the slow fault input is not triggered duringlight load conditions and in skip mode when the IC3feedback pin voltage is pushed up by the voltage feedbackloop.Controller IC3 receives the VCC voltage from standbystage during normal operation mode. Auxiliary winding ofthe resonant transformer W7 (when half wave rectified byD1) helps to power the control circuits when load on thestandby supply output is too low and there is a lack of voltageon the standby auxiliary winding due to pure flybacktransformer coupling. Please note that all outputs of theconverter (including standby stage) are referenced to onesecondary ground (S GND).Leakage (Resonant) InductancMagnetizing InductancePrimary Turns Count24 V Output Turns Count12 V Output Turns Count30 V Output Turns CountAuxiliary Winding Turns CountLm/Ls RatioLs 115 mHLm 450 mH384253450/115 3.9Low value of the Lm/Ls ratio together with high turnsratio of the transformer will result in the high gain values.Note that the manufacturer specifies the LS inductance ina standard way all secondary windings are shorted duringthe Ls measurements. This approach is OK for a transformerthat has one secondary winding, but in our case we havethree different secondary windings and two of them arecenter taped so only one of the corresponding windingparticipates on the resonance during one half of theswitching period. As a result, the real leakage inductancethat participates on the resonance is higher. Due to this fact,the simulation results of gain characteristics that areaccomplished based on the transformer datasheet values, arenot accurate enough to determine operating frequency rangeof the proposed converter.The most accurate method how to obtain gaincharacteristics of the LLC converter that uses integratedtransformer solution with multiple outputs, is to use again phase analyzer. To do so it is necessary to loadmeasured transformer outputs by equivalent AC resistancesbefore measurements (first fundamental approximation see [5] and [6]). For the center taped windings connect theAC resistance only to one of the windings of the pair thiswill happen in reality only one diode conducts the currentduring one half of the switching period. The AC resistancefor corresponding output can be calculated usingEquation 1.R ac 8 V out ) V fp2I out(eq. 1)Where:Voutis the DC output voltage for given outputVfis the rectifier forward voltageIoutis the DC output current from given outputThe output current has to be selected based on what typeof gain characteristics one wants to obtain full load, 10%load etc. Connection of the transformer during the gaincharacteristics measurements can be seen in Figure 2.LLC Transformer and Resonant TankA transformer from the standard production of the Pulseengineering company has been used for this design. Thistransformer, which is specially designed for LLChttp://onsemi.com4
NCP1605LCDTVGEVB The minimum needed operating frequency to assurelow line regulation is 79 kHz The maximum needed operating frequency to assurehigh line regulation is 106 kHz The converter will operate in the calculated seriesresonant frequency for Vbulk 360 VDCAs demonstrated, the converter will operate above thecalculated theoretical series resonant frequency for nominalbulk voltage and full load. The ZCS capability is thus notachieved on the secondary diodes. Also the neededoperating frequency range of this converter is very narrow,which is beneficial for LCD TV application EMI radiationand filtering.Gain characteristic of this converter for Iload 0.10 * Imaxand same parameters as above is in Figure 4.0.210.19Figure 2. Transformer Connection During GainCharacteristics MeasurementsGAIN ( )0.17The resonant tank quality factor of Q 4.3 (thatcorresponds to resonant capacitor Cr 33 nF) has beenselected for this design in order to narrow operatingfrequency range of the converter.The measured full load gain characteristic for the selectedresonant tank components and 24 V output can be observedin Figure 3.The gains that are needed to assure line regulation can becalculated using Equations 2 through 4:G nom G max V inmax2ǒV out ) V fǓV innom2ǒV out ) V fǓV inmax 2(24 ) 0.6)4252(24 ) 0.6)3952(24 ) 0.6)350 0.116(eq. 2) 0.125(eq. 3) Gmax0.1250.11Gmin0.070.052.0E 046.0E 041.0E 051.4E 051.8E 05FREQUENCY (Hz)Figure 3. FLLC Converter Gain Characteristicfor Full Load and Q 4.3 (Cr 33 nF)21.81.61.4 0.141(eq. 4)Theoretical series resonant frequency can also becalculated based on the Equation 5:f r1 0.13Operating Point forVbulk 395 V andFull Load0.09GAIN ( )G min 2ǒV out ) V fǓ0.151.210.810.62 @ p @ ǸL r @ C r0.412 @ 3.14 @ Ǹ115 @ 10 6 @ 33 @ 10 9(eq. 5)0.2 81.7 kHz0.12502.E 04Now, when looking back to the gain characteristic inFigure 3, the operating conditions of the full loaded LLCpower stage can be read: The nominal operating frequency of such converter is94.6 kHz (for nominal bulk voltage)6.E 04Operating Point forVbulk 395 V andFull Load100kHz1.E 051.E 05FREQUENCY (Hz)2.E 05Figure 4. LLC Converter gain Characteristicfor 10 % Load Conditionshttp://onsemi.com5
NCP1605LCDTVGEVBThis characteristic shows that the operating frequency hasto be increased above 100 kHz to maintain regulation underlight load conditions. Skip mode for the LLC stage can thusbe easily implemented when maximum frequency is limitedby Fmax adjust resistor value.Please refer to the application notes AND8255/D andAND8257/D for further information about the LLCconverter resonant tank components design.Standby (PFC and LLC disabled) consumptioncharacteristic with line voltage for 0.5 W load on the standbyoutput is in Figure 7. The consumption is below 1 W for anyinput voltage so today’s energy agency’s needs are easilymet thanks to this design.950900Results SummarizationPIN (mW)Operating frequency of real LLC stage is 96.1 kHz for fullload and Vbulk 395 VDC, which is very close to thetheoretical expectations. Output current level during whichthe skip mode takes place (LLC stage) has been setapproximately to 8 W by R50, R57 divider. The PFC stageenters skip mode for output power lower than 25 W andleaves it for Pout 30 W.Measured efficiency for different input voltages and loadconditions can be seen in Figures 5 and 6.850800750700850.92EFFICIENCY ( )0.9EM 1100.860.840.820.8406080100 120 140 160 180 200 220TOTAL OUTPUT POWER (W)Figure 5. Total Efficiency versus Output Power andLine0.915FULL LOAD EFFICIENCY ( 0110130125145165 185 205VIN (VAC)225245265Figure 7. Standby Consumption versus Line Voltage 0.5 W Load on STB OutputEM 2300.880.7820105150 170 190 210INPUT VOLTAGE (VAC)230250Figure 6. Total Full Load Efficiency versus InputVoltagehttp://onsemi.com6
NCP1605LCDTVGEVBFigure 8. LLC Converter Waveforms During SkipMode (1 Bridge Voltage, 2 Output Ripple on12 V Output, 3 Feedback Pin of the NCP1396)Figure 9. Output Ripple on Each LLC StageOutput for Full Load Conditions (1 24 V Output,2 30 V Output, 3 12 V Output)Figure 10. LLC Stage Load Regulation for 230 VInput Voltage (2 Output Voltage on the 24 V Output,4 Output Current from the 24 V Output)Figure 11. LLC Stage Operating Under ShortCircuit (1 Ctimer Voltage, 2 Feedback Voltage,4 Primary Current)Figure 12. LLC Stage Full Load Operation(1 Bridge Voltage, 4 Primary Current)Figure 13. Detail of the ZVS Condition on theBridge Rising Edge (1 Bridge Voltage,4 Primary Current)http://onsemi.com7
NCP1605LCDTVGEVBFigure 14. Detail of the ZVS Condition on theBridge Falling Edge (1 Bridge Voltage,4 Primary Current)Figure 15. Standby Power Supply Waveforms Full Loaded (1 NCP1027 Drain Voltage,4 Drain Current)Figure 16. Standby Power Supply Waveforms No Load Conditions (1 NCP1027 Drain Voltage)Figure 17. PFC Stage Skip Mode(1 Q2 Drain Voltage, 2 Bulk Voltage)Layout Consideration6. Application note AND8257/D7. Application note AND8281/D8. Bo Yang Topology Investigation for Front EndDC DC Power Conversion for Distributed PowerSystem9. M. B. Borage, S. R. Tiwari and S. Kotaiah Design Optimization for an LCL Type SeriesResonant Converter10. Pulse Engineering Transformer specification,No: 2652.0017A11. Pulse Engineering Transformer specification,No: 2362.0031B12. Pulse Engineering PFC inductor specification,No: 2702.0012APlease contact Pulse Engineering Company regardingliterature 10 12:Pulse European HeadquartersEinsteinstrasse 171083 HerrenbergGermanyTEL: 49 7032 7806 0FAX: 49 7032 7806 12Leakage inductance on the primary side is not very criticalfor the LLC converter compared to other topologies, becauseit will only slightly modify the resonant frequency. Howeverit is well to keep the areas of each power loop as small aspossible due to radiated EMI noise. A two sided PCB withone side ground plane helps (see Figures 21 and 23).ThanksI would like to thank the PULSE engineering company forprovided samples and support for magnetic componentsused in this board.I would also like to thank the COILCRAFT company forproviding samples of the filtering inductors.CAUTIONThis evaluation board is intended for demonstration andevaluation purposes only and not for the end customer.Literature1. NCP1396A/B data sheet2. NCP1605 data sheet3. NCP1027 data sheet4. Application note AND8241/D5. Application note AND8255/Dhttp://onsemi.com8
NCP1605LCDTVGEVBEN50081 1 (Domestic) Conducted EmissionsEN50081 1 (Domestic) Conducted Emissions90808070706060LEVEL (dBmV)LEVEL 0k1510FREQUENCY (mHz)FREQUENCY (mHz)Figure 18. Conducted EMI Signature of theBoard for Full Load and 230 VAC InputFigure 19. Conducted EMI Signature of theBoard for Full Load and 110 VAC Inputhttp://onsemi.com930
NCP1605LCDTVGEVBFigure 20. Component Placement on the Top Side (Top View)http://onsemi.com10
NCP1605LCDTVGEVBFigure 21. Top Side (Top View)http://onsemi.com11
NCP1605LCDTVGEVBFigure 22. Component Placement on the Bottom Side (Bottom View)http://onsemi.com12
NCP1605LCDTVGEVBFigure 23. Bottom Side (Bottom View)http://onsemi.com13
NCP1605LCDTVGEVBFigure 24. Photo of the Designed Prototype (Real Dimensions are 200 x 130 mm)http://onsemi.com14
NCP1605LCDTVGEVBBILL OF MATERIALDesignatorQtyDescriptionValueB11Bridge RectifierKBU8MC1, C2, C3,C8, C9,C12, C13,C14, C15,C43, C4411ElectrolyticCapacitor470 mF / 35 cturerManufacturerPart OL EUE5 10.5Rubycon35ZL470M10X20Yes220 mF / 63 V10%CPOL EUE5 10.5Rubycon63 YXA220M 10x16YesC111MKP Capacitor33 nF / 630 Vdc20%C EU150 084X183ArcotronicsR73 0.033mF 15 630VYesC161ElectrolyticCapacitor220 mF / 35 V20%CPOL EUE5 10.5Rubycon35 RX30220M 10x12.5YesC17, C482CeramicCapacitor SMD10n10%C 220p10%C EU050 r SMD8n210%C EUC1206EpcosB37872A5822K060YesC20, C23,C32, C33,C36, C526C211CeramicCapacitor SMD150n10%C EUC1206EpcosB37872A5154K060YesC221CeramicCapacitor SMD220n10%C EUC1206EpcosB37872A5224K060YesC241CeramicCapacitor SMD390p5%C EUC1206EpcosB37871K5391J060YesC251CeramicCapacitor SMD1n210%C EUC1206EpcosB37872A5122K060YesC26, C28,C38, C40,C515CeramicCapacitor SMD100n10%C EUC1206EpcosB37872A5104K060YesC271CeramicCapacitor SMD1n10%C EUC1206EpcosB37872A5102K060YesC291CeramicCapacitor SMD22n10%C EUC1206EpcosB37872A5223K060YesC311CeramicCapacitor SMD68n10%C EUC1206EpcosB37872A5683K060YesC341CeramicCapacitor SMD1 mF10%C citor4m7/35V20%CPOL EUE2 5Rubycon35 MH54.7M 4x5YesC371CeramicCapacitor SMD2n210%C-EUC1206EpcosB37872A5222K060YesC391C4, C452ElectrolyticCapacitor220 mF / 25 V20%CPOL EUE5 10.5Rubycon25 NXA220M 10x12.5YesC411MKP Capacitor10 nF / 630 Vdc20%C EU075 citor1u20%CPOL EUE2 5Rubycon50 MH51M 4x5YesC471ElectrolyticCapacitor100 uF / 35 V20%CPOL EUE5.5 8Rubycon50 PK100M 8x11.5YesC491ElectrolyticCapacitor10 mF / 35 V20%CPOL EUE2.5 6Rubycon50 MH710M 6.3x7YesC5, C30,C423MKP Capacitor1 mF / 275 Vac20%C EU225 108X268ArcotronicsR46KM410000N1MYesNOTE:NUC EUC1206NUYesC EU150 064X183Please see the NCP1396A/B product folder on www.onsemi.com for PCB Gerber files and other collateral informationregarding this evaluation board.All components are Lead Free.http://onsemi.com15
NCP1605LCDTVGEVBBILL OF rt NumberC501CeramicCapacitor SMD100p20%C itor100 mF / 450 V20%EC18L40’22L35’Rubycon450 VXG100M 22x30YesC71ElectrolyticCapacitor100 mF / 450 V20%EC18L40’22L35 90’Rubycon450 VXG100M 22x30YesCY1, E3KX222MA5BYesD1, D8,D12, D13,D175DiodeMMSD4148SOD 123ONSemiconductorMMSD4148T1GNoD111Dual DiodeMBRF20100CTTO 220ONSemiconductorMBRF20100CTGNoD14, GNoD151Zener Diode3V3SOD 123ONSemiconductorMMSZ3V3T1GNoD161D181Zener OD 1235%SOD 123NUSMADiode1N5408Axial 40T3SMCONSemiconductorMBRS320T3GNoD221Zener Diode18VSOD 123ONSemiconductorMMSZ18T1GNoD3, D5, D6,D7, 3GNoD41DiodeMSR860TO 220ONSemiconductorMSR860GNoF11FUSEHOLDER, 20X5MMSH22, 5ASH22, 5AMulticompMCHTC 15MYes1COVER, PCBFUSEHOLDERMulticompMCHTC 150MYes1FUSE,MEDIUMDELAY 4A4ABUSSMANNTDC 210 4AYesHEATSING11HeatsingSK 454 150 SASK454/150 GNDFischerElektronikSK 454 150 SAYesHEATSING21HeatsingSK 454 100 SASK454/100 GNDFischerElektronikSK 454 100 SAYesIC11PFC ControllerNCP1605SOIC 16ONSemiconductorNCP1605DR2GNoIC2, IC62ProgrammablePrecisionReferenceTL431SO8SOIC erNCP1396ASOIC cisionReferenceTLV431ASOT 23ONSemiconductorTLV431ASN1T1GNoIC51HV Switcher forMedium PowerOffline SMPSNCP1027PDIP(8 Minus Pin 6)ONSemiconductorNCP1027P065GNoJ1, J32Connector22 23 2071MOLEX 7PINMolex22 23 2071YesNOTE:5%Please see the NCP1396A/B product folder on www.onsemi.com for PCB Gerber files and other collateral informationregarding this evaluation board.All components are Lead Free.http://onsemi.com16
NCP1605LCDTVGEVBBILL OF rt NumberJ21Connector22 23 2101MOLEX 10PINMolex22 23 2101YesJ41Connector22 23 2051MOLEX 5PINMolex22 23 uellerLP7.5/2/903.2 ORYesL1, L4, L5,L104Inductor2m220%RFB0807CoilcraftRFB0807 2R2LNoL21Inductor2702.0012A(260 mH)15%Pulse 2702Pulse2702.0012AYesL31L6, L72CoilcraftDO5040H 104MLBNoL81L91EMI Filter7mHTLBIPulse6001.0069NoOK1, OK2,OK33Opto CouplerPC817PC817SMDAvagoTechnologiesHCPL 817 300EYesQ1, Q32MOSFETTransistorSTP12NM50FPTO storSTP20NM60FPTO 220STMicroelectronicsSTP12NM50FPYesQ41PNP GeneralPurposeTransistorBC856 16LT1SOT 23ONSemiconductorBC856 16LT1GNoQ5, Q72NPN GeneralPurposeTransistorBC817 16LT1SOT 23ONSemiconductorBC817 16LT1GNoQ61NUSOT 23R1, R8,R19, R204Resistor SMD10R1%R EU R1206VishayRCA120610R0FKEAYesR131ResistorTrough Hole0.1R1%R EU 22.0005A20%DO5040H 100NUTLBI15%R141Resistor SMD7k51%R EU R1206VishayRCA12067K50FKEAYesR15, R512Resistor SMD8k21%R EU M1206VishayRCA12068K20FKEAYesR171Resistor SMD47k1%R EU M1206VishayRCA120647K0FKEAYesR181Resistor SMD1k61%R EU M1206VishayRCA12061K60FKEAYesR2, R5,R10, R164Resistor SMD1M81%R EU M1206VishayRCA12061M80FKEAYesR21, R25,R26, R27,R37, R46,R507Resistor SMDNU1%R EU M1206VishayYesR221Resistor SMD1k11%R EU M1206VishayRCA12061K10FKEAYesR23, R33,R34, R38,R41, R736Resistor SMD1k1%R EU M1206VishayRCA12061K00FKEAYesR24, R772Resistor SMD18k1%R EU 5TSEVARISTOR10K300Vishay2381 584 T271SYesR291Resistor SMD33k1%R EU M1206VishayRCA120633K0FKEAYesR3, R6, R113Resistor SMD1M31%R EU R1206VishayRCA12061M30FKEAYesR301Resistor SMD91k1%R EU M1206VishayRCA120691K0FKEAYesR31, R482Resistor SMD3k31%R EU M1206VishayRCA12063K30FKEAYesR32, R39,R553Resistor SMD15k1%R EU R1206VishayRCA12061K50FKEAYesR361Resistor SMD62k1%R EU M1206VishayRCA120662K0FKEAYesNOTE:Please see the NCP1396A/B product folder on www.onsemi.com for PCB Gerber files and other collateral informationregarding this evaluation board.All components are Lead Free.http://onsemi.com17
NCP1605LCDTVGEVBBILL OF rt NumberR4, R9,R12, R35,R43, R44,R52, R57,R61, R74,R79, R8012Resistor SMD10k1%R EU M1206VishayRCA120610K0FKEAYesR401Resistor SMD150R1%R EU R1206VishayRCA1206150RFKEAYesR421Resistor SMD18R1%R EU R1206VishayRCA120618R0FKEAYesR451Resistor SMD2k71%R EU M1206VishayRCA12062K70FKEAYesR471Resistor SMD2k21%R EU R1206VishayRCA12062K20FKEAYesR491Resistor SMD5k61%R EU M1206VishayRCA12065K60FKEAYesR531Resistor SMD24k1%R EU R1206VishayRCA120624K0FKEAYesR541Resistor SMD150k1%R EU R1206VishayRCA1206150KFKEAYesR561Resistor SMD6k81%R EU R1206VishayRCA12066K80FKEAYesR581Resistor SMD1k51%R EU R1206VishayRCA12061K50FKEAYesR591Resistor SMD6k21%R EU R1206VishayRCA12066K20FKEAYesR60, R62,R633Resistor SMD820R1%R EU R1206VishayRCA1206820RFKEAYesR64, R682Resistor SMD1M21%R EU R1206VishayRCA12061M20FKE
Nov 13, 2012 · NCP1605/1396 LCD TV Evaluation Board User's Manual Introduction This document provides a detailed description of the implementation of an LCD TV power supply. The LDC TV supply unit exhibits high efficiency, low EMI noise and a low profile construction. The board contains DCM/CCM PFC front stage, 21
