LED Drive1 防水.docx

LED Drive1 防水.docx

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LEDDrive1防水

LEDDriverPower

HowtochooseasuitableLEDdriver

•Decideasuitablewattagelevel,includingsafetymargin.

•VerifyyourdesignofLEDdrivingcircuit:

directdrivebyPSU[chooseaconstantcurrent（C.C.）modeLEDdriversupply]oraddadditionaldrivingICtogetamorepreciseconstantcurrentlevel[chooseaconstantvoltage（C.V.）orconstantcurrent（C.C.）modeLEDdriversupply]

•VerifywhethertheapplicationneedPFCfunction.

•VerifylocationofassemblyandtherequiredlevelagainstdustandhumidityfortheLEDpowersupply（enclosurestyleandIPlevel）

•Verifytherequiredsafetycertificates.

•Needtoadjusttheoutputvoltageand/oroutputcurrentorneedthedimmingfunction.

SuggestedSystemDesign

Setting

Circuitdiagram

Description

Advantage&Disadvantage

UseC.C.mode

powersupply

Noneedballast

resistorandLED

driverIC

For1WLED,VF=3.2V,IF=0.35A

Parallelconnection:

6.3A/0.35A=18

18branchesneedtoconnectinparallel

UsingMeanWellpowersupplyastheconstantcurrentsourceandfeedtheLEDarraysdirectly.

Advantage:

Thecostandcomplexityarethe

lowesttoLEDmanufacturers.

Justneedtoconsiderabout

characteristicsoftheLED.

Disadvantage:

Drivingcurrentforeachbranch

maybeunbalance

ConstantcurrentregionofCLG-150-24:

12~24V,sotheLEDseriesconnectionshould

be4to7.

SincePF>0.9onlyfor75%ofratedloadorhigher,therecommnadedseriesconnectionis6or7.

UseC.V.or

C.C.mode

powersupply

Addballast

resistorto

balance

everybranch

R=[V-（VF1+VF2+...+VFn）]/IF

Note:

V:

Ratedoutputvoltageof

LEDpowersupply

VF:

LED’sforwardvoltage

IF:

LED’sforwardcurrent

Example:

UsingLPV-60-24（24V/2.5A）

todriveaLEDarraywhich6

LEDsconnectedinseriesin

eachbranchand4branches

connectedinparallel

Advantage:

•Lowcost

•Simple

Disadvantage:

•BrightnessofLEDisuneven

•Poorefficiency

UseC.V.or

C.C.mode

powersupply

DriverIC

isusedas

aconstant

currentsource

（withoutballast

resistor）

PWMconstantcurrentsource

willregulateforwardcurrent

toachieveevencurrentateach

branch

Advantage:

•Highefficiency

•Perfectcurrentbalancetoeach

branch

•LongerlifetimeforLEDs

Disadvantage:

•Highestcost

•Highcomplexity

•EMCproblematlighting

equipmentside

Constant-currentdrivepower

1LRW-030WxxxVxxxx

1）Features

•HighEfficiency（Upto86%）

•ActivePowerFactorCorrection（Typical0.86）

•ConstantOutputCurrent

•Waterproof（IP67）

•All-RoundProtection:

OVP,SCP,OTP

•ComplyWithUL8750&EN61347Regulations

•UniversalACinput/Fullrange

•FullyencapsulatedwithIP67level

•Protections:

Shortcircuit/Overload/Overvoltage/Overtemp.（LPLC/LPHC-18only）

•Constantcurrentdesign（C.C.+C.V.mode）

•Withstand300VACsurgeinputfor5seconds

•Coolingbyfreeairconvection

•PassLPS

•100%fullloadburn-intest

•Lowcost,highreliability

•SuitableforLED-baseddecorative/architecturallighting,LEDstageandtheaterlighting,andLEDelectronicdisplays

•2yearswarranty

2）Description

TheLRW-030WxxxVxxxxSeriesoperatefroma90~264Vacinputrange.Theseunitswillprovideupto2500mAofoutputcurrentandamaximumoutputvoltageof85Vfor30Woutputmodel.Theyaredesignedtobehighlyefficientandhighlyreliable.Featuresincludeovervoltageprotection,shortcircuitprotectionandovertemperatureprotection.

3）Models

Output

Current

InputVoltage

Max.

Output

Voltage

Max.

Output

Power

Typical

Efficiency

PowerFactor

ModelNumber

115Vac

230Vac

2500mA

90~264Vac

12Vdc

30W

83%

0.86

0.84

LRW-030W012V2500

1660mA

90~264Vac

18Vdc

30W

84%

0.86

0.84

LRW-030W018V1660

1250mA

90~264Vac

24Vdc

30W

85%

0.86

0.84

LRW-030W024V1250

830mA

90~264Vac

36Vdc

30W

86%

0.86

0.84

LRW-030W036V0830

700mA

90~264Vac

42Vdc

30W

86%

0.86

0.84

LRW-030W048V0700

450mA

90~264Vac

66Vdc

30W

86%

0.86

0.84

LRW-030W066V0450

350mA

90~264Vac

85Vdc

30W

87%

0.86

0.84

LRW-030W085V0350

Notes:

（1）Outputcurrentisadjustableatthefactoryfrom50%to100%.

（2）Measuredatfullloadand230Vacinput.

4）InputSpecifications

Parameter

Min.

Typ.

Max.

Notes

InputVoltage

85V

100-240V

270V

InputFrequency

47Hz

60/50Hz

63Hz

ACinrushcurrent

45A

Coldstart,60Aat230VAC

InputACCurrent

0.43A

Measuredatfullloadand100Vacinput.

0.23A

Measuredatfullloadand240Vacinput.

5）OutputSpecifications

Parameter

Min.

Typ.

Max.

Notes

OutputCurrentRange

Io=2500mA

Io=1660mA

Io=1250mA

Io=830mA

Io=700mA

Io=450mA

Io=350mA

2375mA

1580mA

1190mA

790mA

665mA

428mA

333mA

2625mA

1740mA

1310mA

870mA

735mA

472mA

367mA

OutputVoltageRange

Io=2500mA

Io=1660mA

Io=1250mA

Io=830mA

Io=700mA

Io=450mA

Io=350mA

6V

9V

12V

18V

21V

33V

42V

12V

18V

24V

36V

42V

66V

85V

RippleandNoise（pk-pk）

2%VO

Measuredby20MHzbandwidth

oscilloscopeandtheoutputparalleleda

0.1uFceramiccapacitoranda10uF

electrolyticcapacitor.

LineRegulation

1%

LoadRegulation

3%

Turn-onDelayTime

3S

OutputOvershoot/Undershoot

10%

Whenpoweronoroff.

Note:

Allspecificationsaretypicalat25°Cunlessotherwisestated.

6）ProtectionFunctions

Parameter

Min.

Typ.

Max.

Notes

OverVoltageProtection

Io=2500mA

Io=1660mA

Io=1250mA

Io=830mA

Io=700mA

Io=450mA

Io=350mA

16V

25V

33V

42V

57V

92V

119V

Latchmode.Thepowersupplyshall

returntonormaloperationonlyafterthe

poweristurn-onagain.

OverTemperatureProtection

110°C

Maximumtemperatureofcomponents

insidethecase.

ShortCircuitProtection

Nodamageshalloccurwhenanyoutputoperatinginashortcircuitcondition.Thepowersupplyshallbeself-recoverywhenthefaultconditionisremoved.

7）GeneralSpecifications

Parameter

Min.

Typ.

Max.

Notes

Efficiency

85%

For700mAoutputmodels,measuredatfullloadand115Vacinput.

86%

For700mAoutputmodels,measuredatfullloadand230Vacinput.

NoLoadPowerDissipation

≤1.0W

Measuredat230Vacinput.

MTBF

300,000hours

At115Vacinput,fullloadand25°Cambienttemperature（MIL-HDBK-217F）

LifeTime

80,000hours

At25°Cambienttemperature.

Dimensions

Inches（L×W×H）

Millimeters（L×W×H）

Weight

Note:

Allspecificationsaretypicalat25°Cunlessotherwisestated.

8）EnvironmentalSpecifications

Parameter

Min.

Typ.

Max.

Notes

OperatingTemperature

-20℃

+60℃

Humidity:

10%RHto100%RH

StorageTemperature

-40℃

+85℃

Humidity:

5%RHto100%RH

9）Safety&EMCCompliance

SafetyCategory

Country

Standard

CUL

USA&Canada

UL8750CompliancetoUL1310Class2UL1012UL935,

CAN/CSA-C22.2No.0,CSA-C22.2No.107.1,CSA-C22.2No.250.0

CE/3C

Europe/CQC

EN61347-1,EN61347-2-13，GB19510

EMIStandards

Notes

EN55015

ConductedemissionTest&RadiatedemissionTestwith6dBmargin

EN61000-3-2

Harmoniccurrentemissions

EN61000-3-3

Voltagefluctuations&flicker

EN61000-4-2

ElectrostaticDischarge（ESD）:

8kVairdischarge,4kVcontactdischarge

EN61000-4-3

Radio-FrequencyElectromagneticFieldSusceptibilityTest-RS

EN61000-4-4

ElectricalFastTransient/Burst-EFT

EN61000-4-6

ConductedRadioFrequencyDisturbancesTest-CS

EN61000-4-8

PowerFrequencyMagneticFieldTest

EN61000-4-11

VoltageDips

EN61547

ElectromagneticImmunityRequirementsAppliestoLightingEquipment

10）MechanicalOutline

11）RoHSCompliance

OurproductscomplywiththeEuropeanDirective2002/95/EC,callingfortheeliminationofleadandotherhazardoussubstancesfromelectronicproducts.

2LRW-060WxxxVxxxx

1）Features

•HighEfficiency（Upto92%）

•ActivePowerFactorCorrection（Upto0.99）

•ConstantCurrentOutput

•LightningProtection

•All-RoundProtection:

OVP,SCP,OTP

•Waterproof（IP67）

•ComplyWithUL8750&EN61347SafetyRegulations

•UniversalACinput/Fullrange

•FullyencapsulatedwithIP67level

•Protections:

Shortcircuit/Overload/Overvoltage/Overtemp.（LPLC/LPHC-18only）

•Constantcurrentdesign（C.C.+C.V.mode）

•Withstand300VACsurgeinputfor5seconds

•Coolingbyfreeairconvection

•PassLPS

•100%fullloadburn-intest

•Lowcost,highreliability

•SuitableforLED-baseddecorative/architecturallighting,LEDstageandtheaterlighting,andLEDelectronicdisplays

•2yearswarranty

2）Description

TheLRW-060WxxxVxxxxSeriesoperatefroma90~305Vacinputrange.Theseunitswillprovideuptoa5Aofoutputcurrentandamaximumoutputvoltageof170Vfor60Wmaximumoutputpower.Theyaredesignedtobehighlyefficientandhighlyreliable.Featuresincludeovervoltageprotection,shortcircuitprotectionandovertemperatureprotection.

3）Models

Output

Current

InputVoltage

Max.

Output

Voltage

Max.

Output

Power

Typical

Efficiency

PowerFactor

ModelNumber

115Vac

230Vac

5000mA

90~305Vac

12Vdc

60W

88%

0.99

0.96

LRW-060W012V5000

3300mA

90~305Vac

18Vdc

60W

89%

0.99

0.96

LRW-060W018V3300

2300mA

90~305Vac

27Vdc

60W

89%

0.99

0.96

LRW-030W018V1660

1700mA

90~305Vac

36Vdc

60W

90%

0.99

0.96

LRW-060W036V1700

1400mA

90~305Vac

43Vdc

60W

90%

0.99

0.96

LRW-060W043V1400

1050mA

90~305Vac

58Vdc

60W

91%

0.99

0.96

LRW-060W058V1050

700mA

90~305Vac

86Vdc

60W

91%

0.99

0.96

LRW-060W086V0700

450mA

90~305Vac

134Vdc

60W

92%

0.99

0.96

LRW-060W134V0450

350mA

90~305Vac

170Vdc

60W