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Using theLM3447-A19-120VEVM User's Guide LiteratureNumber: SLUU937 May 2012

www.ti.com WARNING AlwaysfollowTI’s set-upand applicationinstructions,includinguse ofallinterfacecomponents withintheir recommended electricalratedvoltageand power limits.Alwaysuse electricalsafetyprecautionstohelp ensureyourpersonalsafetyand thesafetyofthoseworkingaroundyou.ContactTI’s ProductInformation Centerhttp://support/ti./comforfurtherinformation. Save allwarnings and instructionsforfuturereference. Failuretofollowwarnings and instructionsmay resultinpersonalinjury,propertydamage, or death due toelectricalshock and/orburn hazards. The termTIHV EVM referstoan electronicdevicetypicallyprovidedas an open framed,unenclosed printedcircuitboardassembly.Itisintendedstrictlyforuse indevelopmentlaboratoryenvironments, solelyforqualifiedprofessionalusershavingtraining,expertise,and knowledgeofelectricalsafetyrisksin developmentand applicationofhigh-voltageelectricalcircuits.Any otheruse and/orapplicationarestrictly prohibitedby Texas Instruments.Ifyou arenotsuitablyqualified,you shouldimmediatelystopfromfurther use oftheHV EVM. 1. Work Area Safety: (a)Keep work areacleanand orderly. (b)Qualifiedobserver(s)must be presentanytimecircuitsareenergized. (c)Effectivebarriersand signagemust be presentintheareawhere theTIHV EVM and itsinterface electronicsareenergized,indicatingoperationofaccessiblehighvoltagesmay be present,forthe purposeofprotectinginadvertentaccess. (d)Allinterfacecircuits,power supplies,evaluationmodules,instruments,meters,scopesand other relatedapparatusused ina developmentenvironmentexceeding50 VRMS /75VDC must be electricallylocatedwithina protectedEmergency Power Off(EPO) protectedpower strip. (e)Use a stableand non-conductivework surface. (f)Use adequatelyinsulatedclampsand wirestoattachmeasurement probesand instruments.No freehandtestingwhenever possible. 2. ElectricalSafety: (a)De-energizetheTIHV EVM and allitsinputs,outputs,and electricalloadsbeforeperformingany electricalorotherdiagnosticmeasurements.RevalidatethatTIHV EVM power has been safelyde- energized. (b)WiththeEVM confirmedde-energized,proceedwithrequiredelectricalcircuitconfigurations,wiring, measurement equipmenthook-upsand otherapplicationneeds,whilestillassumingtheEVM circuit and measuringinstrumentsareelectricallylive. (c)Once EVM readinessiscomplete,energizetheEVM as intended. WARNING: whiletheEVM isenergized,never touch theEVM or itselectricalcircuitsas they could be athigh voltagescapableofcausing electricalshock hazard. 3. PersonalSafety: (a)Wear personalprotectiveequipmente.g.latexglovesand/orsafetyglasseswithsideshieldsor protectEVM inan adequatelucentplasticbox withinterlocksfromaccidentaltouch. 4. LimitationforSafe Use: (a)EVMs arenottobe used as allorpartofa productionunit.

2 SLUU937 –May 2012

User's Guide SLUU937 –May 2012 LM3447-A19-120VEVM isa Phase-Dimmable, Primary-Side RegulatedLED Driver

1 Introduction

The LM3447-A19-120VEVM isa 10-W, 120-VAC isolateddimmable LED driverwhose formfactorintended forA19/R27 applications.

2 Description

The LM3447-A19-120VEVM isa primary-sidepower regulatedPFC controllerused forcommercialand residentialphase-cutdimmer compatibleLED lamp drivers.The LM3447-A19-120VEVM uses fixed frequencyvalleyswitchingoperationresultingindiscontinuouscurrentoperation.

2.1 TypicalApplications

A19 BulbForm Factor
R27 BulbForm Factor

2.2 Features

Primary-SideControl
Leadingand TrailingEdge Compatible
50:1Dimming Range
ValleySwitching
FixedFrequencyDiscontinuousOperation
ThermalFoldback
PFC
EfficientTriacHoldCurrentOperation
LED Shortand Open CircuitDetection
ThermalFoldback
ConstantPower Operation 3SLUU937 –May 2012 LM3447-A19-120VEVM isa Phase-Dimmable,Primary-SideRegulatedLED DriverSubmitDocumentationFeedback Copyright© 2012,Texas InstrumentsIncorporated

ElectricalPerformanceSpecifications www.ti.com

3 ElectricalPerformance Specifications

Table1.LM3447-A19-120VEVM ElectricalPerformance Specifications PARAMETER TEST CONDITIONS MIN TYP MAX UNITS InputCharacteristics Voltagerange 90 120 135 V Maximum inputcurrent 100 mA Output Characteristics Outputvoltage,VOUT 9 to10 LED ’s 28 30 32 V Outputloadcurrent,IOUT 240 275 310 mA Outputcurrentripple VIN = 120 VAC 100 mApp Outputovervoltage 36 V Systems Characteristics Switchingfrequency 75 kHz Full-loadefficiency VIN = 120 VAC 82% Power factor,PF 0.98

4 LM3447-A19-120VEVM isa Phase-Dimmable,Primary-SideRegulatedLED SLUU937 –May 2012

C2, C4: 305Vac, X2 classR1: Fusible ResistorEMI Filter and Snubber Circuit Hardware and Fiducials Not populated 90VAC to 135VAC Output: 28V to 32V Notes: J1J2 J3 J4 J5 R1 22 MOV1 140VAC, 12J C4 33nF R15 R16 D2HD04 R4 430k R3430k D7 3.9V Q1 450V R2 470C30.22uF R5100 R85.1k C8 2.2uF, 25V BAV19WS-TP C9 22uF, 25V Q2 650V R11 0.2 D3 UFM15PL-TPD1160V, 400WSMAJ160A R9 220kR1023.7k R7 10 BAV19WS-TP R12280k C100.1uF R13118kC11 0.1uF C12 10uF D4ES1D-13-F R6 22k C6 1uF, 50V J6 J7 R1410 SC1 SC2 SC3 SC4 J8 J9 1 2 3 4 5 678910 750813049 Wurth Electronics VAC TSNS FTR1 FTR2 FF INV COMP GND ISNS GATE VCC AUX HOLD BIAS LM3447MTLM3447MT C1 0.1uF C5 470uF 3.3mH 3.3mH RT1100k 250VAC, 2A C210nF 1000pF LED+ LED- www.ti.com Schematic

4 Schematic

TestSetup www.ti.com

5 TestSetup

5.1 TestEquipment

VoltageSource:105 VRMS to135 VRMS isolatedAC sourcePCR500LA (KIKUSUI) Multimeters:Agilent34401A Power Meter:PM1000 DigitalPower Meter(Voltech) Output Load: 9 LEDs inseries(VF = 3.2V at350 mA perLED) Oscilloscope:TDS3045C (TEKTRONIX) OperatingTemperature:25°C Recommended Wire Gauge: 18 AWG notmore thantwo feetlong

5.2 Recommended TestSetup

Figure2.LM3447-A19-120VEVM Recommended TestSet Up

5.3 ListofTestPoints

Table2.TestPointsFunctions TEST POINTS NAME DESCRIPTION TP1 Neutral 120 VAC neutralconnection TP2 Line 120 VAC linevoltage J8 LED+ LED anode connection J9 LED- LED cathodeconnection

6 LM3447-A19-120VEVM isa Phase-Dimmable,Primary-SideRegulatedLED SLUU937 –May 2012

www.ti.com TestProcedure

6 TestProcedure

6.1 Line/LoadRegulationand EfficiencyMeasurement Procedure

ConnectEVM perFigure2 above.An externalLED loadmust be used tostartup theEVM. 2. Priortoturningon theAC source,setthevoltageto90 VRMS . 3. Turnon theAC source. 4. Record theoutputvoltageand currentreadingsfromVoltmeter2 and outputcurrentreadingfrom Ammeter 2 and inputvoltagereadingfromVoltmeter1 and currentfromAmmeter 1. 5. Increaseoutputvoltageby 5 VRMS . 6. Repeat steps4 and 5 until135 VAC isreached. 7. RefertoSection6.2forshutdownprocedure.

6.2 Equipment Shutdown

Turnoffequipment. 2. Make surecapacitorsaredischarged.

6.3 EVM Phase Angle Decode vs LED Current

ConnectEVM perFigure2 above.An externalLED loadmust be used tostartup theEVM. 2. Priortoturningon theAC source,setthevoltageto120 VRMS. 3. Connectscope probetoEVM perFigure2 above tobridgerectifieroutput. 4. Turnon theAC source. 5. Record theoutputvoltageand currentreadingsfromVoltmeter2 and outputcurrentreadingfrom Ammeter 2 and inputvoltagereadingfromVoltmeter1 and currentfromAmmeter 1. 6. Setdimmer tominimum settingand varyby 1.0msec till8 msec isreachedand recordin5 above. 7. RefertoSection6.2forshutdownprocedure. NOTE: Scope must be isolated. 7SLUU937 –May 2012 LM3447-A19-120VEVM isa Phase-Dimmable,Primary-SideRegulatedLED DriverSubmitDocumentationFeedback Copyright© 2012,Texas InstrumentsIncorporated

Efficiency vs Line Voltage 75.00 77.00 79.00 81.00 83.00 85.00 87.00 89.00 90 100 110 120 130 140 Input voltage (VAC) Efficiency (%) Input voltage vs. PF 0.9 0.91 0.92 0.93 0.94 0.95 0.96 0.97 0.98 0.99 90 100 110 120 130 140 Input voltage (VAC) Power Factor PerformanceData and TypicalCharacteristicCurves www.ti.com

7 Performance Data and TypicalCharacteristicCurves

Figure3 throughFigure26 presenttypicalperformancecurvesforLM3447-A19-120VEVM.

7.1 Efficiency

Figure3.LM3447-A19-120VEVM Efficiency

7.2 Power Factor

Figure4.LM3447-A19-120VEVM Power Factorvs LineVoltage

8 LM3447-A19-120VEVM isa Phase-Dimmable,Primary-SideRegulatedLED SLUU937 –May 2012

Input voltage (VAC) Input Power (W) Line Regulation 225 235 245 255 265 275 285 295 305 315 325 90 100 110 120 130 140 Input voltage (VAC) Output current (mA) www.ti.com PerformanceData and TypicalCharacteristicCurves

7.3 LineRegulation

Figure5.LM3447-A19-120VEVM InputPower Regulation Figure6.LM3447-A19-120VEVM LED CurrentRegulation 9SLUU937 –May 2012 LM3447-A19-120VEVM isa Phase-Dimmable,Primary-SideRegulatedLED DriverSubmitDocumentationFeedback Copyright© 2012,Texas InstrumentsIncorporated

Ithd% vs. Input voltage 90 100 110 120 130 140 Input Voltage (VAC) Ithd%) PerformanceData and TypicalCharacteristicCurves www.ti.com

7.4 InputCurrentTHD

Figure7.LM3447-A19-120VEVM- Ithd% vs LineVoltage

7.5 Output Ripple

Figure8.Output Ripple (Ch1 -LED currentCh2 -rectifiedlinevoltageCh4- linecurrent200 mA/div)

10 LM3447-A19-120VEVM isa Phase-Dimmable,Primary-SideRegulatedLED SLUU937 –May 2012

Turn-on angle vs. Iout 100 150 200 250 300 5 25 45 65 85 105 125 145 165 Turn-on angle (degrees ) Iout (mA) www.ti.com PerformanceData and TypicalCharacteristicCurves

7.6 Switch Node VoltageValleySwitching

Figure9.Switch Node Waveform (Ch1 -LED currentCh2- switchnode Ch3 -rectifiedlinevoltage)

7.7 TriacDimmer LED Currentvs Conduction Angle

Figure10.LED Currentvs Conduction Angle 11SLUU937 –May 2012 LM3447-A19-120VEVM isa Phase-Dimmable,Primary-SideRegulatedLED DriverSubmitDocumentationFeedback Copyright© 2012,Texas InstrumentsIncorporated

Turn-on angle vs. Total Input Power 0.00 2.00 4.00 6.00 8.00 10.00 12.00 5 55 105 155 Turn-on angle (degrees ) Total Input Power (W) PerformanceData and TypicalCharacteristicCurves www.ti.com

7.8 Turn-On Angle vs InputPower

Figure11.Turn-On Angle vs.InputPower 7.9 Input/OutputCurrentand LineVoltageWaveforms vs.Dimmer Setting Figure12.Dimmer Full (Ch4-LED currentCh3 -rectifiedlinevoltageCh1 – linecurrent)

12 LM3447-A19-120VEVM isa Phase-Dimmable,Primary-SideRegulatedLED SLUU937 –May 2012

www.ti.com PerformanceData and TypicalCharacteristicCurves Figure13. Dimmer 8 ms (Ch4-LED currentCh3 -rectifiedlinevoltageCh1 – linecurrent) Figure14.Dimmer 7 ms (Ch4-LED currentCh3 -rectifiedlinevoltageCh1 – linecurrent) 13SLUU937 –May 2012 LM3447-A19-120VEVM isa Phase-Dimmable,Primary-SideRegulatedLED DriverSubmitDocumentationFeedback Copyright© 2012,Texas InstrumentsIncorporated

PerformanceData and TypicalCharacteristicCurves www.ti.com Figure15.Dimmer 6 ms (Ch4-LED currentCh3 -rectifiedlinevoltageCh1 – linecurrent) Figure16.Dimmer 5 ms (Ch4-LED currentCh3 -rectifiedlinevoltageCh1 – linecurrent)

14 LM3447-A19-120VEVM isa Phase-Dimmable,Primary-SideRegulatedLED SLUU937 –May 2012

www.ti.com PerformanceData and TypicalCharacteristicCurves Figure17.Dimmer 4 ms (Ch4-LED currentCh3 -rectifiedlinevoltageCh1 – linecurrent) Figure18.Dimmer 3 ms (Ch4-LED currentCh3 -rectifiedlinevoltageCh1 – linecurrent) 15SLUU937 –May 2012 LM3447-A19-120VEVM isa Phase-Dimmable,Primary-SideRegulatedLED DriverSubmitDocumentationFeedback Copyright© 2012,Texas InstrumentsIncorporated

PerformanceData and TypicalCharacteristicCurves www.ti.com Figure19.Dimmer 2.0ms (Ch4-LED currentCh3 -rectifiedlinevoltageCh1 – linecurrent)

7.10 CurrentSense Waveform

Figure20.CurrentSense Waveform (Ch4-LED currentCh2 -rectifiedlinevoltageCh3 –R11 CurrentSense)

16 LM3447-A19-120VEVM isa Phase-Dimmable,Primary-SideRegulatedLED SLUU937 –May 2012

www.ti.com PerformanceData and TypicalCharacteristicCurves

7.11 LED Open and ShortCircuitWaveforms

Figure21.Pre-Open CircuitWaveforms (Ch4-LED currentCh2- LED voltageCh1 – linecurrent) Figure22.Open CircuitWaveforms (Ch4-LED currentCh2- LED voltageCh1 – linecurrent) 17SLUU937 –May 2012 LM3447-A19-120VEVM isa Phase-Dimmable,Primary-SideRegulatedLED DriverSubmitDocumentationFeedback Copyright© 2012,Texas InstrumentsIncorporated

PerformanceData and TypicalCharacteristicCurves www.ti.com Figure23.Open CircuitWaveforms (Ch4-LED currentCh2 -linevoltageCh1 – linecurrent) Figure24.Pre-ShortCircuitWaveforms (Ch4-LED currentCh2 -rectifiedlinevoltageCh1 – linecurrent)

18 LM3447-A19-120VEVM isa Phase-Dimmable,Primary-SideRegulatedLED SLUU937 –May 2012

www.ti.com PerformanceData and TypicalCharacteristicCurves Figure25.ShortCircuitWaveforms (Ch4-LED currentCh2 -rectifiedlinevoltageCh1 – linecurrent) Figure26.ShortCircuitWaveforms (Ch4-LED currentCh2- LED voltageCh1 – linecurrent) 19SLUU937 –May 2012 LM3447-A19-120VEVM isa Phase-Dimmable,Primary-SideRegulatedLED DriverSubmitDocumentationFeedback Copyright© 2012,Texas InstrumentsIncorporated

PerformanceData and TypicalCharacteristicCurves www.ti.com

7.12 EMI Plot

Figure27.EMI Plot

20 LM3447-A19-120VEVM isa Phase-Dimmable,Primary-SideRegulatedLED SLUU937 –May 2012

ELECTRICAL SPECIFICATIONS @ 25° C unless otherwise noted: D.C. RESISTANCE (@20° C ): 3 -1 , 2.90 Ohms ±10%. DIELECTRIC RATING: 3000VAC, 1 minute tested by applying 3750VAC for 1 second between pins 3-7(tie 1+5). INDUCTANCE: 1.30mH ±10%, 70kHz, 100mVAC, 0mADC, 3-1, Ls. SATURATION CURRENT: TBDmADC saturating current that causes 20% rolloff from initial inductance. LEAKAGE INDUCTANCE: 30µH max., 100kHz, 100mVAC, 3-1(tie 4+5, 6+7), Ls. OPERATING TEMPERATURE RANGE: -40° C to +125° C includ ing temp rise. Designed to comply with the following requirements as defined by IEC60950-1, EN60950-1, UL60950-1/CSA60950-1 and AS/NZS60950.1: - Reinforced insulation for a primary circuit at a working voltage of 200VDC. Wire insulation & RoHS status not affected by wire color. Wire ins ulation color may vary depending on availability. WE-Midcom, Inc. Unless otherwise specified, tolerances are as follows: Angles: ±1° Fractions: ±1/64 Decimals:±.005(.127mm) WE-Midcom, Inc. Watertown, SD USA Drawing Title Drawing Number Rev. Toll Free: 800-643-2661 Fax: 605-886-4486 Transformer 750813049 00 This drawing is dual dimensioned. Dimensions is brackets are in millimeters Revisions: See Sheet 1 Scale ---- S pec Sheet 1 of 1 Engineer:EJK 03/21/2012 PRI 127 - 191VDC 70kHz AUX 15VDC, 20mADC SEC 30VDC, 280mADC www.ti.com PerformanceData and TypicalCharacteristicCurves

7.13 TransformerSpecification

EVM Assembly Drawingand PCB Layout www.ti.com

8 EVM Assembly Drawing and PCB Layout

The followingfigures(Figure29 throughFigure32)show thedesignoftheLM3447EVM-128 printed circuitboard. Figure29.LM3447-A19-120VEVM Top Layer Copper (topview) Figure30.LM3447-A19-120VEVM Bottom Layer Copper (bottomview)

22 LM3447-A19-120VEVM isa Phase-Dimmable,Primary-SideRegulatedLED SLUU937 –May 2012

www.ti.com EVM Assembly Drawingand PCB Layout Figure31.LM3447-A19-120VEVM Top Assembly Drawing (topview) Figure32.LM3447-A19-120VEVM Bottom Assembly Drawing (bottomview) 23SLUU937 –May 2012 LM3447-A19-120VEVM isa Phase-Dimmable,Primary-SideRegulatedLED DriverSubmitDocumentationFeedback Copyright© 2012,Texas InstrumentsIncorporated

ListofMaterials www.ti.com

9 ListofMaterials

The EVM components listaccordingtotheschematicshown inFigure1. Table3.LM3447-A19-120VEVM ListofMaterials QTY REFDES DESCRIPTION MFR PART NUMBER 2 C10,C11 Capacitorceramic,0.1µF,16 V,603 STD STD 1 C12 Capacitorceramic,10 µF,6.3V,805 STD STD 1 C6 Capacitorceramic,1.0µF,1210 STD STD

1 C7 Capacitor,1000 pF,X1Y1, 250 VAC TDK CD85-

1 C2 Capacitorfilm,10 nF,310 VAC ,X2 Vishay/BC BFC233820103

1 C5 Capacitoraluminum,470 µF 50V Vishay/BC MAL214651471E3

1 C4 Capacitor,305 VAC ,33 nF Epcos B32921C3333M

1 C1 Capacitor,0.1µF,leaded,305 VAC Epcos B32921C3104M189 1 C3 Capacitor,0.22µF,250 V Vishay FK20X7R2E224K 1 D2 Bridgerectifier,400 V,0.8A,HD04 Diodes,Inc HD04

2 D5, D6 Diode,smallsignal,250 mA, SOD-323 MicroCommercial BAV19WS-TP

1 D3 Diode,SMD ultrafastrectifier1 A,600 V MicroCommercial UFM15PL-TP

1 D4 Diode,superfastrectifier, Diodes,Inc ES1D

1 D7 Diode,Zener,3.9V,200 mW, SOD-323 On Semi MM3Z23V9T1G

1 D1 Diode,SMT TVS 400 W, 160 V Littlefuse SMAJ160A

1 F1 Fuse,slow,250 VAC ,2 A,radial BelFuse inc RST2

2 L1,L2 Inductor,EMI,140 mA, 3.3mH TDK TSL0808RA- 333KR17-P

1 MOV1 MOV, VMAX ,242 VDC ,VMIN 198 VDC LittelfuseInc V140LA2P

1 R14 Resistor,chip,10 Ω,1/16W, 603 STD STD

1 R13 Resistor,chip,118 kΩ,1/16W, 603 STD STD

1 R9 Resistor,chip,220 kΩ,1/16W, 603 STD STD

1 R10 Resistor,chip,23.7kΩ,1/16W, 603 STD STD

1 R12 Resistor,chip,280 kΩ,1/16W,603 STD STD

2 R3,R4 Resistor,chip,430 kΩ,0.25W, 1% VishayDale HVR2500004303F, R500

1 R1 Resistor,Fusible,22 Ω,2 W, 5% EMC-22RKI Welwyn

1 R7 Resistor,chip,10 Ω,1/10W, ±5% 805 STD STD

1 R5 Resistor,chip,100 Ω,1/10W, ±5% 805 STD STD

1 R8 Resistor,chip,5.1kΩ,1/10W, ±5% 805 STD STD DNP R15,R16 Resistor,chip,10 kΩ,1/4W, ± 5% 1206 STD STD

1 R6 Resistor,chip,22 kΩ,1/4W, ±5% 1206 STD STD

1 R11 Resistor,chip,0.2Ω,1/2W, 1210 VishayDale RCWL1210R200JNE A 1 R8 Resistor,chip,470 Ω,1.5W, 5%, 2512 VishayDale CRCW2512470RJ, NEGHP

1 RT1 "Thermistor,NTC, 100 kΩ,0805 Murata NCP21WF104J03RA

1 Q2 MOSFET, N-channel,650 V,7 A,600 m Ω,DPAK ST Micro STD8N65M5

1 Q1 MOSFET, 450 V,600 mA, 2 W ST Micro STQ3N45K3-AP

1 U1 Dimmable LED ControllerTSSOP TI LM3447MT

T1 EE16, 1.3mH, 4.17:1 Wurth 750813049

24 LM3447-A19-120VEVM isa Phase-Dimmable,Primary-SideRegulatedLED SLUU937 –May 2012

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Product Information

HVR2500004303F specifications and overview.

Summary

a Phase-Dimmable, Primary-Side Regulated LED Driver

Description

a Phase-Dimmable, Primary-Side Regulated LED Driver

Source title HVR2500004303F Datasheet(PDF) - Texas Instruments

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