降压PFC

Using the UCC29910A-730 User's GuideLiterature Number:SLUU505AMay2011–Revised October2011User's GuideSLUU505A–May2011–Revised October2011 Buck PFC Pre-Regulator in Power Factor CorrectionApplications1IntroductionThis EVM is to help evaluating UCC29910A buck PFC pre-regulator controller device in Power FactorCorrection(PFC)applications especially targeting notebook computer charger area with universal ACinput voltages.2DescriptionThe EVM is a100-W buck PFC pre-regulator with universal AC input between90VAC and264VAC,inputfrequency between47Hz and63Hz,and output voltage nominal84VDCand maximum load current1.2A.2.1Typical Applications•High Efficiency AC-DC Adapters•Low Profile and High Density Adapters2.2Features•Universal Line Input AC Voltage(between90VAC and264VAC,with frequency range47Hz and63Hz)•Regulated Output DC Voltage(84VDCwith maximum1.2-A load current)•Output Voltage Regulation From no Load to Full Load,and From Low Line to High Line•High Efficiency96%Peak and95%at Full Load•High Power Factor Over0.9•Double Sided PCB Layout•Buck PFC Technology•Non-Latching Input Under Voltage Protection•Over Current Protection•Test Points to Facilitate Device and Topology Evaluation2Buck PFC Pre-Regulator in Power Factor Correction Applications SLUU505A–May2011–Revised October2011Submit Documentation FeedbackCopyright©2011,Texas Instruments Incorporated Electrical Performance Specifications 3Electrical Performance SpecificationsTable1.UCC29910AEVM-730Electrical Performance SpecificationsPARAMETER CONDITION MIN TYP MAX UNITS Input CharactersticsV IN Input voltage90115264V ACf AC Input frequency4763HzI IN Input current V IN=nom,I OUT=max 1.5A RMSV IN_UVLO Input UVLO I OUT=min to max80V AC V IN_OV Input OV I OUT=min to max265P F Power factor V IN=nom,50%load0.9Output CharacteristicsV OUT Output voltage(1)V IN=nom,I OUT=nom82.38485.7V Reg_LN Line regulation(2)V IN=min to max,I OUT=nom 5.0%Reg_LD Load regulation(2)V IN=nom,I OUT=min to max 5.0%V OUT_ripple Output voltage ripple V IN=nom,I OUT=max6V PPI OUT Output current V IN=min to max0 1.20AIOCP Output over current V IN=nom,I OUT=I OUT-5% 1.30Systems Characteristicsf SW Switching frequency100kHzEff_Peak Peak efficiency V IN=nom,I OUT=min to max96%Eff_FL Full load efficiency V IN=nom,I OUT=max95%Top Operating temperature range V IN=min to max,I OUT=min to max25°C(1)Start up is normally with load current not greater than0.2A.Start up with no load,or less than0.2-A load,may make outputvoltage higher and can be as high as88V.Start up with load current greater than0.2A may trigger over current protection andmay make output voltage in hiccup operation.(2)Load step down to zero may make output voltage higher and can be as high as90V.3 SLUU505A–May2011–Revised October2011Buck PFC Pre-Regulator in Power Factor Correction Applications Submit Documentation FeedbackCopyright©2011,Texas Instruments IncorporatedSchematic 4SchematicFigure1.Schematic4Buck PFC Pre-Regulator in Power Factor Correction Applications SLUU505A–May2011–Revised October2011Submit Documentation FeedbackCopyright©2011,Texas Instruments Incorporated Test Setup5Test Setup 5.1Test EquipmentVoltage Source (Main):90V AC to 265V AC ,2.0A AC ,such as Agilent 6813B AC Power Source/Analyzer,or equivalent.Voltage Source (Bias):10V DC /0.2A.Multimeters:100V DC /1.5A DC four-digit display meters,such as Fluke 45Dual Display Multimeter,or equivalent.Output Load:100V DC /1.5A DC load such as TDI RBL488Electronic Load 100-120-800,or equivalent.Fan:200LFM minimum.Recommended Wire Gauge:AWG #18for input voltage connection and output load connection.5.2Recommended Test SetupFigure 2.UCC29910AEVM-730Recommended Test Set Up5SLUU505A –May 2011–Revised October 2011Buck PFC Pre-Regulator in Power Factor Correction ApplicationsSubmit Documentation FeedbackCopyright ©2011,Texas Instruments IncorporatedTest Setup 5.3List of Test PointsTable2.Test Point FunctionTEST POINTS NAME DESCRIPTIONTP1LINE input AC Input voltage LINE connectionTP2NEUTRAL input AC input voltage NEUTRAL connectionTP3GND Reference ground for signalTP4Rectifier Input Input after common mode chokeTP5FET Drive U3(UCC29910A)Pin13TP6GND Reference ground for powerTP73V3B 3.3-V bias and U3(UCC29910A)Pin1TP8Current Monitor Q5drain current monitoringTP9Current Monitor Q5drain current monitoringTP10Drive Q5gateTP11Drain Q5drainTP12VO-Output voltage negative terminalTP13VO+Output voltage positive terminalJ1Bias External10-V biasJ2Fault Manual Fault Input to trigger fault protection from external circuitJ3Vout Output power terminal6Buck PFC Pre-Regulator in Power Factor Correction Applications SLUU505A–May2011–Revised October2011Submit Documentation FeedbackCopyright©2011,Texas Instruments Incorporated Test Procedure 6Test ProcedureSet up the EVM per Figure2.CAUTIONHigh voltage and high temperature present when the EVM is in operation!High voltage present for some time after power down of the EVM.Check outputterminals with a voltmeter before handling the EVM!6.1Power Factor and Efficiency Measurement Procedure1.Check the switch S1at ON position.If S1is not at ON position,switch S1to the position ON.2.Turn on the ventilation fan and keep the fan in operation during the time of test.3.Set the AC source voltage to115VACand frequency to60Hz.But keep the AC source powered off4.Prior to connecting the AC source,set the current to2.5-A peak and2.5-A limit.Connecting AC sourceto LINE and NEUTRAL terminals as shown in Figure2.5.Connect voltmeter V1across the J3as shown in Figure2.6.Connect ammeter A1to J3positive terminal and connect ammeter A1to Load-1.Then connect Load-1negative terminal to J3negative terminal.7.Connect10-V Bias to J1,turn on10-V Bias.8.Set Load-1to constant current mode to sink0.2ADC and set Load-1at100VDCinput range beforeturning on the AC source.9.Turn on the AC source.10.Varying the load current from0.2A to1.2A,along with the load current variation:(a)Read input voltage,input real power,and power factor from the AC source.(b)Read output voltage and output current from V1and A1.11.Turn off the AC source.12.Set the AC source voltage to230VACand frequency to50Hz.13.Repeat step8and10.NOTE:Start up is normally with load current not greater than0.2A.Start up with no load,or less than0.2-A load,may make output voltage higher and can be ashigh as88V.Start up with load current greater than0.2A may trigger over current protection and maymake output voltage in hiccup operation.Load step down to zero may make output voltage higher and can be as high as90V.6.2Equipment Shutdown1.Shut down the AC source2.Shut down the10-V Bias3.Shut down the load4.Shut down the FANCAUTIONHigh voltage may present after power down of the EVM for some time.Checkoutput terminals with a voltmeter before handling the EVM!7 SLUU505A–May2011–Revised October2011Buck PFC Pre-Regulator in Power Factor Correction Applications Submit Documentation FeedbackCopyright©2011,Texas Instruments Incorporated7Performance Data and Typical Characteristic Curves 7.1Efficiency at 115V AC and 230V ACFigure 3.Efficiency with 115V AC and 230V AC (Test Points:TP1,TP2,TP12and TP13)7.2Efficiency at Full Load with Respect to Input VoltageFigure 4.Efficiency at Full Load (Test Points:TP1,TP2,TP12and TP13)8Buck PFC Pre-Regulator in Power Factor Correction ApplicationsSLUU505A –May 2011–Revised October 2011Submit Documentation FeedbackCopyright ©2011,Texas Instruments Incorporated7.3Power Factor at 115V AC and 230V ACFigure 5.PF with 115V AC and 230V AC (Test Points:TP1,TP2,TP12and TP13)7.4Power Factor at Full Load with Respect to Input VoltageFigure 6.PF at Full Load (Test Points:TP1,TP2,TP12and TP13)9SLUU505A –May 2011–Revised October 2011Buck PFC Pre-Regulator in Power Factor Correction ApplicationsSubmit Documentation FeedbackCopyright ©2011,Texas Instruments Incorporated7.5Input Current Harmonic Content (IEC EN61000-3-2Limits for Class D Equipment)Figure 7.Harmonic Content with 230Vac Input (Vin =230Vac at 50Hz,Io =1.2A Test Points:TP1,TP2,TP12and TP13)7.6Input Current Harmonic Content (JIS61000-3-2Limits for Class D Equipment)Figure 8.Harmonic Content with 100V AC Input (V IN =100V AC at 50Hz,I O =1.2A Test Points:TP1,TP2,TP12and TP13)10Buck PFC Pre-Regulator in Power Factor Correction ApplicationsSLUU505A –May 2011–Revised October 2011Submit Documentation FeedbackCopyright ©2011,Texas Instruments Incorporated7.7No-Load Output Turn OnFigure9.No-Load Turn On(VIN =230VACat50Hz,IO=0A Test Points:TP12and TP13)11SLUU505A–May2011–Revised October2011Buck PFC Pre-Regulator in Power Factor Correction Applications Submit Documentation FeedbackCopyright©2011,Texas Instruments Incorporated7.8Output Voltage RippleFigure10.Output Voltage Ripple(VIN =230VACat50Hz,IO=1.2A Test Points:TP12and TP13)12Buck PFC Pre-Regulator in Power Factor Correction Applications SLUU505A–May2011–Revised October2011Submit Documentation FeedbackCopyright©2011,Texas Instruments Incorporated7.9Input Voltage and CurrentFigure 11.Input Waveforms (V IN =230V AC at 50Hz,I O =1.2A Test Points:TP1and TP2)7.10EMI Performance Achievable on a Full 90-W Adapter Design (reference to SEM1900topic 4)NOTE:This EVM is not designed to meet the EMI standard.A reference design shown in SEM1900does.13SLUU505A –May 2011–Revised October 2011Buck PFC Pre-Regulator in Power Factor Correction ApplicationsSubmit Documentation FeedbackCopyright ©2011,Texas Instruments IncorporatedFigure12.EMI Conducted Emission Test(Vin=230Vac at50Hz,Io=1.2A)14Buck PFC Pre-Regulator in Power Factor Correction Applications SLUU505A–May2011–Revised October2011Submit Documentation FeedbackCopyright©2011,Texas Instruments Incorporated EVM Assembly Drawing and PCB layout8EVM Assembly Drawing and PCB layoutThe following figures (Figure 13through Figure 18)show the design of the UCC29910AEVM-730printed circuit board.PCB dimensions:L x W =6.1inch x 3.0inch,four layers and 2-oz copper on outer layers and 1-oz copper on inner layers.Figure 13.UCC29910AEVM-730Top Layer Assembly Drawing (top view)Figure 14.UCC29910AEVM-730Bottom Assembly Drawing (bottom view)15SLUU505A –May 2011–Revised October 2011Buck PFC Pre-Regulator in Power Factor Correction ApplicationsSubmit Documentation FeedbackCopyright ©2011,Texas Instruments IncorporatedEVM Assembly Drawing and PCB layout Figure15.UCC29910AEVM-730Top Copper(top view)Figure16.UCC29910AEVM-730Internal Layer1(top view)16Buck PFC Pre-Regulator in Power Factor Correction Applications SLUU505A–May2011–Revised October2011Submit Documentation FeedbackCopyright©2011,Texas Instruments Incorporated EVM Assembly Drawing and PCB layoutFigure17.UCC29910AEVM-730Internal Layer2(top view)Figure18.UCC29910AEVM-730Bottom Copper(top view)17 SLUU505A–May2011–Revised October2011Buck PFC Pre-Regulator in Power Factor Correction Applications Submit Documentation FeedbackCopyright©2011,Texas Instruments IncorporatedList of Materials 9List of MaterialsTable3.The EVM Components List(according to the schematic shown in) REF DES QTY DESCRIPTION PART NUMBER MFRC11Capacitor,metallized polyester film,275V AC,20%,330nF ECQ-U2A334ML PanasonicC101Capacitor,ceramic,630V,20%,1206,220pF std stdC111Capacitor,ceramic,16V,X7R,±10%,0805,100nF std stdC12,C15,3Capacitor,ceramic,16V,X7R,±10%,0805,10nF std stdC22C14,C172Capacitor,ceramic,100V,±10%,1206,1µF std stdC181Capacitor,ceramic,16V,X7R,±10%,0805,2.2nF std stdC19,C202Capacitor,aluminum,100V,20%,470µF EEU-FC2A471PanasonicC21Capacitor,ceramic,25V,X7R,20%,47µF CKG57NX5R1E476M TDKC211Capacitor,aluminum,16V,20%,100µF ECA1CM101PanasonicC231Capacitor,ceramic,50V,X7R,±10%,0805,100nF std stdC3,3Capacitor,ceramic,16V,X7R,±10%,0805,1µF std stdC4,C13C51Capacitor,metallized polyproplene film,450V DC,20%,ECW-F2W274JAQ Panasonic0.27µFC61Capacitor,metallized polyester film,450V DC,20%,1.2µF ECW-F2W125JA PanasonicC71Capacitor,ceramic,16V,X7R,±10%,0805,0.47µF std stdC8,C9,3Capacitor,ceramic,630V,20%,1206,10nF std stdC16D1,D72Diode,switching,150mA,75V,350mW BAS16OnsemiD21Diode,super fast rectifier,200V,1.0A ES1D FairchildD31Diode,Zener,10V,20mA,225mW,5%,10V BZX84C10LT1G OnsemiD41Diode,Zener,12V,20mA,225mW,5%,12V BZX84C12LT1G OnsemiD51Diode,bridge,6A,600V,GBU6J VishayD61DIODE,hyperfast6A,600V RHRD660S FairchildD81Adjustable precision shunt regulator,0.5%TLV431BQDBZT TID91Diode,Zener,10V,20mA,225mW,5%,15V BZX84C15LT1G OnsemiF11Fuse,3.15A,250V,Slo-Blo,cartridge,3.15A0213002.LittlefuseJ1,J32Terminal block,2pin,15A,5.1mm,ED500/2DS OSTJ21Header,male2-pin,100mil spacing,PEC02SAAN SullinsL11Inductor,±3%at100kHz,5mH750311982WEL2,L32Inductor,±10%at100kHz,103µH750311983WEL41Transformer,±15%,88µH750311885WEQ11MOSFET,N-channel,600V,7mA BSS126InfineonQ2,Q3,4MOSFET,N-channel,100V,0.17A BSS123FairchildQ4,Q8Q51MOSFET,N-channel,650V,16A,0.199ΩIPB60R199CP InfineonQ61Bipolar,NPN,40V CEO,600mA,350mW MMBT2222AK FairchildQ71Transistor,PNP,-500V CEO,-5V EBO,50mA FMMT560Zetex18Buck PFC Pre-Regulator in Power Factor Correction Applications SLUU505A–May2011–Revised October2011Submit Documentation FeedbackCopyright©2011,Texas Instruments Incorporated List of MaterialsTable3.The EVM Components List(according to the schematic shown in)(continued) REF DES QTY DESCRIPTION PART NUMBER MFRR1,R132Resistor,chip,1/8W,1%,0805,0Ωstd stdR11,R17,5Resistor,chip,1/8W,1%,0805,10kΩstd stdR18,R35,R36R121Resistor,chip,1/8W,1%,0805,680kΩstd stdR141Resistor,chip,1/8W,1%,0805,3.3kΩstd stdR151Resistor,chip,1/8W,1%,0805,56kΩstd stdR161Resistor,chip,1/8W,1%,0805,0Ωstd stdR321Resistor,chip,1/4W,1%,1206,0.05Ωstd stdR191Resistor,chip,1/2W,1%,1210,0.15Ωstd stdR2,R102Resistor,chip,1/8W,1%,0805,300kΩstd stdR201Resistor,chip,1/8W,1%,0805,100kΩstd stdR211Resistor,chip,1/8W,1%,0805,10Ωstd stdR221Resistor,chip,1/8W,1%,0805,47kΩstd stdR24,R252Resistor,chip,1/4W,1%,1206,2.2MΩstd stdR261Resistor,chip,1/8W,1%,0805,13.7kΩstd stdR271Resistor,chip,1/8W,1%,0805,270kΩstd stdR28,R302Resistor,chip,1/4W,1%,1206,1MΩstd stdR291Resistor,chip,1/8W,1%,0805,18kΩstd stdR31Resistor,chip,1/8W,1%,0805,390Ωstd stdR311Resistor,chip,1/4W,1%,1206,330kΩstd stdR331Resistor,chip,1/8W,1%,0805,143kΩstd stdR341Resistor,chip,1/8W,1%,0805,30kΩstd stdR41Resistor,chip,1/8W,1%,0805,1MΩstd stdR5,R62Resistor,chip,1/4W,1%,1206,1.5MΩstd stdR7,R92Resistor,chip,1/4W,1%,1206,51.1kΩstd stdR81Resistor,chip,1/8W,1%,0805,std stdR371Resistor,chip,1/2W,1%,1210,1kΩstd stdR231Resistor,chip,1/8W,1%,0805,100Ωstd stdU1150-mA LDO,3.0V O TPS71533DCKR TIU21MOSFET driver,inverting TPS2828DBV TIU31Buck PFC UCC29910APW TIVR1,VR22Varistor,95V AC V150CH8LittelfuseVR31Varistor,369V DC V430CH8LittelfuseZR11Sidactor,160V S,2.2A P1300SCLRP LittelfuseZR21Sidactor,130V S,2.2A P1100SCLRP Littelfuse19 SLUU505A–May2011–Revised October2011Buck PFC Pre-Regulator in Power Factor Correction Applications Submit Documentation FeedbackCopyright©2011,Texas Instruments IncorporatedEvaluation Board/Kit Important NoticeTexas Instruments(TI)provides the enclosed product(s)under the following conditions:This evaluation board/kit is intended for use for 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