C2wwe2013年12月24日
wwe2013年12月24日 时间:2021-04-29 阅读:()
March20132009FairchildSemiconductorCorporationwww.
fairchildsemi.
comFAN5701Rev.
1.
0.
3FAN5701—Compact6-LEDDriverforMobilePlatformsFAN5701—Compact6-LEDDriverforMobilePlatformsFeaturesSix(6)ParallelLEDs(upto30mAeach)TotalPackageLoadCurrentCapability:180mATwoDefaultGroupsofFour(4)andTwo(2)LEDsforMainandSub-DisplayLightingwithIndividualPWMDimmingControlsthatOperateupto20kHz>600:1DimmingRatiofor100HzPWMFrequencyUpto92%EfficiencyBuilt-in1.
5xChargePumpwithLow-DropoutBypassSwitchWideInputRange:2.
7Vto5.
5VVOUTOver-VoltageandShort-CircuitProtectionOver-TemperatureProtection1.
2MHzSwitchingFrequencyforSmall-SizedCapacitors16-Bump1.
61mmx1.
61mmWLCSP(0.
6mmHeight)16-Lead3.
0mmx3.
0mmUMLP(0.
55mmHeight)ApplicationsLCDBacklightingKeypadBacklightingMobileHandsetsPortableMediaPlayerDescriptionTheFAN5701isahighlyintegratedandefficientcharge-pump-basedmulti-LEDdriver.
ThedevicecandriveuptosixLEDsinparallelwithatotaloutputcurrentof180mA.
TheFAN5701iscapableofdrivingaprimarydisplaybacklightrequiringfourtosixLEDs.
WhenmorethanfourLEDsareneededforbacklighting,theFAN5701'stwoPWMdimminginputscanbeconnectedtogethertoprovidetheproperdimmingcontrolforallsixLEDs.
Whenaprimaryandsub-displayisneeded,theFAN5701canbecontrolledsuchthateachgroupcanbedimmedindependently.
Forcandy-barphonesrequiringaprimarydisplayandkeypadlighting,theFAN5701offersasimple,andcompactlightingsolution.
RegulatedinternalcurrentsinksdeliverexcellentcurrentandbrightnessmatchingtoallsixLEDs.
Thedeviceprovidesexcellentefficiencywithoutaninductorbyoperatingthechargepumpin1.
5xorpass-throughmodes.
TheFAN5701canbeorderedwithISETvaluesof30mA,20mA,15mA,or8mAandavailableinWLCSPorultra-thinUMLPpackagetypes.
ThedefaultISETisalwaysdeterminedbythepartnumberpurchased(seeOrderingInformation).
OrderingInformationPartNumberLEDCurrent(ISET)TemperatureRangePackagePackingFAN5701UC30X30mA-40°Cto85°CWLCSP-16,0.
4mmPitchTapeandReelFAN5701UC20X20mA-40°Cto85°CWLCSP-16,0.
4mmPitchTapeandReelFAN5701UC15X15mA-40°Cto85°CWLCSP-16,0.
4mmPitchTapeandReelFAN5701UC08X8mA-40°Cto85°CWLCSP-16,0.
4mmPitchTapeandReelFAN5701UMP30X30mA-40°Cto85°CUMLP-16,3.
0x3.
0x0.
55mmTapeandReelFAN5701UMP20X20mA-40°Cto85°CUMLP-16,3.
0x3.
0x0.
55mmTapeandReelFAN5701UMP15X15mA-40°Cto85°CUMLP-16,3.
0x3.
0x0.
55mmTapeandReelFAN5701UMP08X8mA-40°Cto85°CUMLP-16,3.
0x3.
0x0.
55mmTapeandReel2009FairchildSemiconductorCorporationwww.
fairchildsemi.
comFAN5701Rev.
1.
0.
32FAN5701—Compact6-LEDDriverforMobilePlatformsBlockDiagramFigure1.
TypicalApplication2009FairchildSemiconductorCorporationwww.
fairchildsemi.
comFAN5701Rev.
1.
0.
33FAN5701—Compact6-LEDDriverforMobilePlatformsWLCSPPinConfigurationBumpsFacingDownBumpsFacingUpFigure2.
WLCSP-16,0.
4mmPitch,1.
61mmx1.
61mmPinDefinitionsPin#NameDescriptionD2VINInputVoltage.
Connectto2.
7–5.
5VDCinputpowersource.
B4GNDGroundD1VOUTChargePumpOutputVoltage.
ConnecttoLEDAnodes.
D3,D4C1+,C1–C1.
Chargepumpflyingcapacitor#1.
C3,C4C2+,C2–C2.
Chargepumpflyingcapacitor#2.
A1,A2,B1,B2,C1,C2D2A,D1A,D4A,D3A,D6B,D5BLEDOutputsA4ENEnable.
WhenthispinisHIGH,normaloperationisenabled.
WhenLOW,theICisresetandallfunctionsaredisabled.
B3PWMAGroup-APWMDimmingInputA3PWMBGroup-BPWMDimmingInput2009FairchildSemiconductorCorporationwww.
fairchildsemi.
comFAN5701Rev.
1.
0.
34FAN5701—Compact6-LEDDriverforMobilePlatformsUMLPPinConfigurationFigure3.
UMLP-16,0.
5mmPitch,3mmx3mm(BottomView)PinDefinitionsPin#NameDescription11VINInputVoltage.
Connectto2.
7–5.
5VDCinputpowersource.
6GNDGround12VOUTChargePumpOutputVoltage.
ConnecttoLEDAnodes.
10,9C1+,C1–C1.
Chargepumpflyingcapacitor#1.
8,7C2+,C2–C2.
Chargepumpflyingcapacitor#2.
1,2,15,16,13,14D2A,D1A,D4A,D3A,D6B,D5BLEDInputs4ENEnable.
WhenthispinisHIGH,normaloperationisenabled.
WhenLOW,theICisresetandallfunctionsaredisabled.
5PWMAGroup-APWMDimmingInput3PWMBGroup-BPWMDimmingInput2009FairchildSemiconductorCorporationwww.
fairchildsemi.
comFAN5701Rev.
1.
0.
35FAN5701—Compact6-LEDDriverforMobilePlatformsAbsoluteMaximumRatingsStressesexceedingtheabsolutemaximumratingsmaydamagethedevice.
Thedevicemaynotfunctionorbeoperableabovetherecommendedoperatingconditionsandstressingthepartstotheselevelsisnotrecommended.
Inaddition,extendedexposuretostressesabovetherecommendedoperatingconditionsmayaffectdevicereliability.
Theabsolutemaximumratingsarestressratingsonly.
SymbolParameterMin.
Max.
UnitsVCCVIN,VOUTPins–0.
36.
0VOtherPins(1)–0.
3AVIN+0.
3VESDElectrostaticDischargeProtectionLevelHumanBodyModel,JESD22-A1143kVChargedDeviceModel,JESD22-C101UMLP162ChargedDeviceModel,JESD22-C101WLCSP-161TJJunctionTemperature–40+150°CTSTGStorageTemperature–65+150°CTLLeadSolderingTemperature,10Seconds+260°CNote:1.
LesserofVIN+0.
3or6.
0V.
RecommendedOperatingConditionsTheRecommendedOperatingConditionstabledefinestheconditionsforactualdeviceoperation.
Recommendedoperatingconditionsarespecifiedtoensureoptimalperformancetothedatasheetspecifications.
Fairchilddoesnotrecommendexceedingthemordesigningtoabsolutemaximumratings.
SymbolParameterMin.
Max.
UnitsVINSupplyVoltage2.
75.
5VVLEDLEDForwardVoltage24VTAAmbientTemperature–40+85°CTJJunctionTemperature–40+125°CThermalPropertiesSymbolParameterMin.
Typ.
Max.
UnitsΘJAJunction-to-AmbientThermalResistance(2)WLCSP80°C/WUMLP49°C/WNote:2.
Junction-to-ambientthermalresistanceisafunctionofapplicationandboardlayout.
Thisdataismeasuredwithfour-layer2s2pboardsinaccordancetoJESD51-JEDECstandard.
SpecialattentionmustbepaidnottoexceedjunctiontemperatureTJ(max)atagivenambienttemperateTA.
2009FairchildSemiconductorCorporationwww.
fairchildsemi.
comFAN5701Rev.
1.
0.
36FAN5701—Compact6-LEDDriverforMobilePlatformsElectricalSpecificationsUnlessotherwisespecified;VIN=2.
7Vto5.
5V,TA=-40Cto+85C,andEN=VIN.
TypicalvaluesareVIN=3.
6V,TA=25C,ILED=20mA,andLEDcathodeterminals=0.
4V.
CircuitandcomponentsareaccordingtoFigure1.
SymbolParameterConditionsMin.
Typ.
Max.
UnitsPowerSuppliesandThermalProtectionIQQuiescentSupplyCurrent1.
5xMode,NoLEDs4.
4mA1xMode,NoLEDs0.
7mAISDShutdownSupplyCurrentEN=0,VIN=4.
5V,TA=-40Cto+85C1.
54.
0AVUVLOUnder-VoltageLockoutThresholdVINRising2.
552.
70VVINFalling2.
202.
40VUVHYSTUnder-VoltageLockoutHysteresis150mVOVPOver-VoltageProtection6VTLIMITThermalShutdown150°CTHYSTThermalShutdownHysteresis20°CLEDCurrentSinksILEDAbsoluteCurrentAccuracyVCATHODE=0.
4V,SeeOptionsforISET–10%ISET+10%mAILED(MAX)MaximumDiodeCurrent(3)ILED=ISET30mAILED_MATCHLEDCurrentMatching(4)VCATHODE=0.
4V,ILED=ISET0.
43.
0%VDTH1xto1.
5xGainTransitionThresholdLEDCathodeVoltageFalling100mVVHRCurrentSinkHeadroom(5)ILED=90%ILED(NOMINAL)65mVChargePumpROUTOutputResistance1.
5xMode2.
4Ω1xMode0.
9ΩfSWSwitchingFrequency0.
91.
21.
5MHztSTARTStartupTimeVOUT=90%ofSteadyState250sPWMDimmingfPWMPWMDimmingFrequencytON_LED=15s(Minimum)20kHzDPWMPWMDuty-CyclefPWM=100Hz0.
15100.
00%LogicInputs(EN,PWMA,PWMB)VIHHIGH-LevelInputVoltage1.
2VVILLOW-LevelInputVoltage0.
4VVIMAXMaximumInputVoltage1.
85.
5VIINInputBiasCurrentInputTiedtoGNDorVIN0.
011.
00ANotes:3.
ThemaximumtotaloutputcurrentfortheICshouldbelimitedto180mA.
Thetotaloutputcurrentcanbesplitbetweenthetwogroups(IDxA=IDxB=30mAmaximum).
Undermaximumoutputcurrentconditions,specialattentionmustbegiventoinputvoltageandLEDforwardvoltagetoensurepropercurrentregulation.
SeetheMaximumOutputCurrentsectionofthedatasheetformoreinformation.
4.
Forthetwogroupsofcurrentsinksonapart(GroupAandGroupB),thefollowingaredetermined:themaximumsinkcurrentinthegroup(MAX),theminimumsinkcurrentinthegroup(MIN),andtheaveragesinkcurrentofthegroup(AVG).
Foreachgroup,twomatchingnumbersarecalculated:(MAX-AVG)/AVGand(AVG-MIN)/AVG.
Thelargestnumberofthetwo(worstcase)isconsideredthematchingfigureforthegroup.
Thematchingfigureforagivenpartisconsideredtobethehighestmatchingfigureofthetwogroups.
Thetypicalspecificationprovidedisthemostlikelynormofthematchingfigureforallparts.
5.
ForeachDxxpin,headroomvoltageisthevoltageacrosstheinternalcurrentsinkconnectedtothatpin.
VHRx=VOUT-VLED.
Ifheadroomvoltagerequirementisnotmet,LEDcurrentregulationiscompromised.
2009FairchildSemiconductorCorporationwww.
fairchildsemi.
comFAN5701Rev.
1.
0.
37FAN5701—Compact6-LEDDriverforMobilePlatformsTypicalCharacteristicsVIN=3.
6V,TA=25C,ILED=20mA,andLEDcathodeterminals=0.
4V.
Figure4.
EfficiencywithLEDCurrentof8mAand20mAFigure5.
LEDCurrentMatchforallSixLEDChannelsatILED=20mAFigure6.
LEDCurrentVariationvs.
TemperatureFigure7.
ShutdownCurrentvs.
InputVoltageFigure8.
SwitchingFrequencyvs.
TemperaturewithLEDCurrentof20mAFigure9.
PWMDimmingVIN=3.
6V,ILEDx=20mA,EN=1kHzwith20%DutyCycle2009FairchildSemiconductorCorporationwww.
fairchildsemi.
comFAN5701Rev.
1.
0.
38FAN5701—Compact6-LEDDriverforMobilePlatformsTypicalCharacteristics(Continued)VIN=3.
6V,TA=25C,ILED=20mA,andLEDcathodeterminals=0.
4V.
Figure10.
ModeTransitionfrom1xto1.
5xMode,VIN=3.
6V(VCATHODERampUp)Figure11.
ModeTransitionfrom1.
5xto1xMode,VIN=3.
6V(VCATHODERampDown)Figure12.
LineTransientResponsein1xMode,VIN=3.
6V–4.
2V,ILEDx=20mAFigure13.
LineTransientResponsein1.
5xMode,VIN=2.
7V–3.
3V,ILED=20mAFigure14.
LineTransientfrom1xto1.
5xMode,VIN=3.
2V–4.
1V,ILEDx=20mAFigure15.
Soft-StartwithEN,VIN=3.
6V,ILEDx=20mA2009FairchildSemiconductorCorporationwww.
fairchildsemi.
comFAN5701Rev.
1.
0.
39FAN5701—Compact6-LEDDriverforMobilePlatformsCircuitDescriptionTheFAN5701isawhiteLEDdriversystembaseduponanadaptive1.
5x/1xchargepumpcapableofsupplyingupto180mAoftotaloutputcurrent.
ThetightlymatchedcurrentsinksensureuniformbrightnessacrosstheLEDs.
EachLEDisconfiguredinacommonanodeconfigurationwithitspeakdrivecurrentsetduringmanufacturing(seeOrderingInformationandISET).
ChargePumpThechargepumpoperatesineither1xmode,whereVOUTisconnectedtoVINthroughabypassswitch,orin1.
5xmode.
Thecircuitoperatesin1xmodeuntiltheLEDwiththehighestforwardvoltage(VLED(MAX))cannolongermaintaincurrentregulation.
Atthatpoint,1.
5xmodebegins.
Ifthelowestactivecathodevoltageisgreaterthan1.
8V,thechargepumpswitchesbackto1xmode.
Inadditiontohysteresis,a1mstransitiondelayisprovidedforthedevicetoignoreshort-durationinputvoltagedropsindecidingmodetransitions.
ICEnableWhentheENpinisLOW,allcircuitfunctionsaredisabled.
WhentheENpinHIGH,theentirechipisenabled.
BothPWMinputsarenowfunctional.
PWMDimmingExternalPWMinputs(groupAandgroupB)directlymodulateoutputcurrentsintheircorrespondingLEDchannelstovarytheperceivedLEDbrightness.
TwoPWMinputsareprovidedtocontroltwoindependentgroupsofLEDs,suchasthatofamaindisplaypanelandasecondarypanel.
TheycanalsobeconnectedtoasingleinputtosimultaneouslydimallsixLEDoutputs.
VOUTShort-CircuitProtectionTheFAN5701hasintegratedprotectioncircuitrytopreventthedevicefrombeingshortcircuitedwhentheoutputvoltagefallsbelow2V.
IfthisoccursFAN5701turnsoffthechargepumpandtheLEDdriveroutputs,butasmallbypassswitchislefton.
Thedevicemonitorstheoutputvoltagetodetermineifitisstillinshortcircuitconditionand,onceithaspassed,FAN5701soft-startsandreturnstonormaloperation.
VOUTOver-VoltageProtectionIftheoutputvoltagegoesabove6V,theFAN5701shutsdownuntilthisconditionhaspassed.
ThechargepumpandLEDdriveroutputsareturnedoff.
Oncethisconditionhaspassed,FAN5701soft-startsintonormaloperation.
2009FairchildSemiconductorCorporationwww.
fairchildsemi.
comFAN5701Rev.
1.
0.
310FAN5701—Compact6-LEDDriverforMobilePlatformsPhysicalDimensionsFigure16.
Wafer-LevelChip-ScalePackage(WLCSP)Product-SpecificDimensionsProductDEXYFAN5701UCxx1.
610mm1.
610mm0.
205mm0.
205mmPackagedrawingsareprovidedasaservicetocustomersconsideringFairchildcomponents.
Drawingsmaychangeinanymannerwithoutnotice.
Pleasenotetherevisionand/ordateonthedrawingandcontactaFairchildSemiconductorrepresentativetoverifyorobtainthemostrecentrevision.
PackagespecificationsdonotexpandthetermsofFairchild'sworldwidetermsandconditions,specificallythewarrantytherein,whichcoversFairchildproducts.
AlwaysvisitFairchildSemiconductor'sonlinepackagingareaforthemostrecentpackagedrawings:http://www.
fairchildsemi.
com/packaging/.
2009FairchildSemiconductorCorporationwww.
fairchildsemi.
comFAN5701Rev.
1.
0.
311FAN5701—Compact6-LEDDriverforMobilePlatformsPhysicalDimensions(Continued)Figure17.
UMLP-16DimensionsPackagedrawingsareprovidedasaservicetocustomersconsideringFairchildcomponents.
Drawingsmaychangeinanymannerwithoutnotice.
Pleasenotetherevisionand/ordateonthedrawingandcontactaFairchildSemiconductorrepresentativetoverifyorobtainthemostrecentrevision.
PackagespecificationsdonotexpandthetermsofFairchild'sworldwidetermsandconditions,specificallythewarrantytherein,whichcoversFairchildproducts.
AlwaysvisitFairchildSemiconductor'sonlinepackagingareaforthemostrecentpackagedrawings:http://www.
fairchildsemi.
com/packaging/.
2009FairchildSemiconductorCorporationwww.
fairchildsemi.
comFAN5701Rev.
1.
0.
312FAN5701—Compact6-LEDDriverforMobilePlatformsMouserElectronicsAuthorizedDistributorClicktoViewPricing,Inventory,Delivery&LifecycleInformation:FairchildSemiconductor:FAN5701UMP15XFAN5701UC15XFAN5701UC08XFAN5701UMP08XFAN5701UC20XFAN5701UC30XFAN5701UMP20XFAN5701UMP30X
fairchildsemi.
comFAN5701Rev.
1.
0.
3FAN5701—Compact6-LEDDriverforMobilePlatformsFAN5701—Compact6-LEDDriverforMobilePlatformsFeaturesSix(6)ParallelLEDs(upto30mAeach)TotalPackageLoadCurrentCapability:180mATwoDefaultGroupsofFour(4)andTwo(2)LEDsforMainandSub-DisplayLightingwithIndividualPWMDimmingControlsthatOperateupto20kHz>600:1DimmingRatiofor100HzPWMFrequencyUpto92%EfficiencyBuilt-in1.
5xChargePumpwithLow-DropoutBypassSwitchWideInputRange:2.
7Vto5.
5VVOUTOver-VoltageandShort-CircuitProtectionOver-TemperatureProtection1.
2MHzSwitchingFrequencyforSmall-SizedCapacitors16-Bump1.
61mmx1.
61mmWLCSP(0.
6mmHeight)16-Lead3.
0mmx3.
0mmUMLP(0.
55mmHeight)ApplicationsLCDBacklightingKeypadBacklightingMobileHandsetsPortableMediaPlayerDescriptionTheFAN5701isahighlyintegratedandefficientcharge-pump-basedmulti-LEDdriver.
ThedevicecandriveuptosixLEDsinparallelwithatotaloutputcurrentof180mA.
TheFAN5701iscapableofdrivingaprimarydisplaybacklightrequiringfourtosixLEDs.
WhenmorethanfourLEDsareneededforbacklighting,theFAN5701'stwoPWMdimminginputscanbeconnectedtogethertoprovidetheproperdimmingcontrolforallsixLEDs.
Whenaprimaryandsub-displayisneeded,theFAN5701canbecontrolledsuchthateachgroupcanbedimmedindependently.
Forcandy-barphonesrequiringaprimarydisplayandkeypadlighting,theFAN5701offersasimple,andcompactlightingsolution.
RegulatedinternalcurrentsinksdeliverexcellentcurrentandbrightnessmatchingtoallsixLEDs.
Thedeviceprovidesexcellentefficiencywithoutaninductorbyoperatingthechargepumpin1.
5xorpass-throughmodes.
TheFAN5701canbeorderedwithISETvaluesof30mA,20mA,15mA,or8mAandavailableinWLCSPorultra-thinUMLPpackagetypes.
ThedefaultISETisalwaysdeterminedbythepartnumberpurchased(seeOrderingInformation).
OrderingInformationPartNumberLEDCurrent(ISET)TemperatureRangePackagePackingFAN5701UC30X30mA-40°Cto85°CWLCSP-16,0.
4mmPitchTapeandReelFAN5701UC20X20mA-40°Cto85°CWLCSP-16,0.
4mmPitchTapeandReelFAN5701UC15X15mA-40°Cto85°CWLCSP-16,0.
4mmPitchTapeandReelFAN5701UC08X8mA-40°Cto85°CWLCSP-16,0.
4mmPitchTapeandReelFAN5701UMP30X30mA-40°Cto85°CUMLP-16,3.
0x3.
0x0.
55mmTapeandReelFAN5701UMP20X20mA-40°Cto85°CUMLP-16,3.
0x3.
0x0.
55mmTapeandReelFAN5701UMP15X15mA-40°Cto85°CUMLP-16,3.
0x3.
0x0.
55mmTapeandReelFAN5701UMP08X8mA-40°Cto85°CUMLP-16,3.
0x3.
0x0.
55mmTapeandReel2009FairchildSemiconductorCorporationwww.
fairchildsemi.
comFAN5701Rev.
1.
0.
32FAN5701—Compact6-LEDDriverforMobilePlatformsBlockDiagramFigure1.
TypicalApplication2009FairchildSemiconductorCorporationwww.
fairchildsemi.
comFAN5701Rev.
1.
0.
33FAN5701—Compact6-LEDDriverforMobilePlatformsWLCSPPinConfigurationBumpsFacingDownBumpsFacingUpFigure2.
WLCSP-16,0.
4mmPitch,1.
61mmx1.
61mmPinDefinitionsPin#NameDescriptionD2VINInputVoltage.
Connectto2.
7–5.
5VDCinputpowersource.
B4GNDGroundD1VOUTChargePumpOutputVoltage.
ConnecttoLEDAnodes.
D3,D4C1+,C1–C1.
Chargepumpflyingcapacitor#1.
C3,C4C2+,C2–C2.
Chargepumpflyingcapacitor#2.
A1,A2,B1,B2,C1,C2D2A,D1A,D4A,D3A,D6B,D5BLEDOutputsA4ENEnable.
WhenthispinisHIGH,normaloperationisenabled.
WhenLOW,theICisresetandallfunctionsaredisabled.
B3PWMAGroup-APWMDimmingInputA3PWMBGroup-BPWMDimmingInput2009FairchildSemiconductorCorporationwww.
fairchildsemi.
comFAN5701Rev.
1.
0.
34FAN5701—Compact6-LEDDriverforMobilePlatformsUMLPPinConfigurationFigure3.
UMLP-16,0.
5mmPitch,3mmx3mm(BottomView)PinDefinitionsPin#NameDescription11VINInputVoltage.
Connectto2.
7–5.
5VDCinputpowersource.
6GNDGround12VOUTChargePumpOutputVoltage.
ConnecttoLEDAnodes.
10,9C1+,C1–C1.
Chargepumpflyingcapacitor#1.
8,7C2+,C2–C2.
Chargepumpflyingcapacitor#2.
1,2,15,16,13,14D2A,D1A,D4A,D3A,D6B,D5BLEDInputs4ENEnable.
WhenthispinisHIGH,normaloperationisenabled.
WhenLOW,theICisresetandallfunctionsaredisabled.
5PWMAGroup-APWMDimmingInput3PWMBGroup-BPWMDimmingInput2009FairchildSemiconductorCorporationwww.
fairchildsemi.
comFAN5701Rev.
1.
0.
35FAN5701—Compact6-LEDDriverforMobilePlatformsAbsoluteMaximumRatingsStressesexceedingtheabsolutemaximumratingsmaydamagethedevice.
Thedevicemaynotfunctionorbeoperableabovetherecommendedoperatingconditionsandstressingthepartstotheselevelsisnotrecommended.
Inaddition,extendedexposuretostressesabovetherecommendedoperatingconditionsmayaffectdevicereliability.
Theabsolutemaximumratingsarestressratingsonly.
SymbolParameterMin.
Max.
UnitsVCCVIN,VOUTPins–0.
36.
0VOtherPins(1)–0.
3AVIN+0.
3VESDElectrostaticDischargeProtectionLevelHumanBodyModel,JESD22-A1143kVChargedDeviceModel,JESD22-C101UMLP162ChargedDeviceModel,JESD22-C101WLCSP-161TJJunctionTemperature–40+150°CTSTGStorageTemperature–65+150°CTLLeadSolderingTemperature,10Seconds+260°CNote:1.
LesserofVIN+0.
3or6.
0V.
RecommendedOperatingConditionsTheRecommendedOperatingConditionstabledefinestheconditionsforactualdeviceoperation.
Recommendedoperatingconditionsarespecifiedtoensureoptimalperformancetothedatasheetspecifications.
Fairchilddoesnotrecommendexceedingthemordesigningtoabsolutemaximumratings.
SymbolParameterMin.
Max.
UnitsVINSupplyVoltage2.
75.
5VVLEDLEDForwardVoltage24VTAAmbientTemperature–40+85°CTJJunctionTemperature–40+125°CThermalPropertiesSymbolParameterMin.
Typ.
Max.
UnitsΘJAJunction-to-AmbientThermalResistance(2)WLCSP80°C/WUMLP49°C/WNote:2.
Junction-to-ambientthermalresistanceisafunctionofapplicationandboardlayout.
Thisdataismeasuredwithfour-layer2s2pboardsinaccordancetoJESD51-JEDECstandard.
SpecialattentionmustbepaidnottoexceedjunctiontemperatureTJ(max)atagivenambienttemperateTA.
2009FairchildSemiconductorCorporationwww.
fairchildsemi.
comFAN5701Rev.
1.
0.
36FAN5701—Compact6-LEDDriverforMobilePlatformsElectricalSpecificationsUnlessotherwisespecified;VIN=2.
7Vto5.
5V,TA=-40Cto+85C,andEN=VIN.
TypicalvaluesareVIN=3.
6V,TA=25C,ILED=20mA,andLEDcathodeterminals=0.
4V.
CircuitandcomponentsareaccordingtoFigure1.
SymbolParameterConditionsMin.
Typ.
Max.
UnitsPowerSuppliesandThermalProtectionIQQuiescentSupplyCurrent1.
5xMode,NoLEDs4.
4mA1xMode,NoLEDs0.
7mAISDShutdownSupplyCurrentEN=0,VIN=4.
5V,TA=-40Cto+85C1.
54.
0AVUVLOUnder-VoltageLockoutThresholdVINRising2.
552.
70VVINFalling2.
202.
40VUVHYSTUnder-VoltageLockoutHysteresis150mVOVPOver-VoltageProtection6VTLIMITThermalShutdown150°CTHYSTThermalShutdownHysteresis20°CLEDCurrentSinksILEDAbsoluteCurrentAccuracyVCATHODE=0.
4V,SeeOptionsforISET–10%ISET+10%mAILED(MAX)MaximumDiodeCurrent(3)ILED=ISET30mAILED_MATCHLEDCurrentMatching(4)VCATHODE=0.
4V,ILED=ISET0.
43.
0%VDTH1xto1.
5xGainTransitionThresholdLEDCathodeVoltageFalling100mVVHRCurrentSinkHeadroom(5)ILED=90%ILED(NOMINAL)65mVChargePumpROUTOutputResistance1.
5xMode2.
4Ω1xMode0.
9ΩfSWSwitchingFrequency0.
91.
21.
5MHztSTARTStartupTimeVOUT=90%ofSteadyState250sPWMDimmingfPWMPWMDimmingFrequencytON_LED=15s(Minimum)20kHzDPWMPWMDuty-CyclefPWM=100Hz0.
15100.
00%LogicInputs(EN,PWMA,PWMB)VIHHIGH-LevelInputVoltage1.
2VVILLOW-LevelInputVoltage0.
4VVIMAXMaximumInputVoltage1.
85.
5VIINInputBiasCurrentInputTiedtoGNDorVIN0.
011.
00ANotes:3.
ThemaximumtotaloutputcurrentfortheICshouldbelimitedto180mA.
Thetotaloutputcurrentcanbesplitbetweenthetwogroups(IDxA=IDxB=30mAmaximum).
Undermaximumoutputcurrentconditions,specialattentionmustbegiventoinputvoltageandLEDforwardvoltagetoensurepropercurrentregulation.
SeetheMaximumOutputCurrentsectionofthedatasheetformoreinformation.
4.
Forthetwogroupsofcurrentsinksonapart(GroupAandGroupB),thefollowingaredetermined:themaximumsinkcurrentinthegroup(MAX),theminimumsinkcurrentinthegroup(MIN),andtheaveragesinkcurrentofthegroup(AVG).
Foreachgroup,twomatchingnumbersarecalculated:(MAX-AVG)/AVGand(AVG-MIN)/AVG.
Thelargestnumberofthetwo(worstcase)isconsideredthematchingfigureforthegroup.
Thematchingfigureforagivenpartisconsideredtobethehighestmatchingfigureofthetwogroups.
Thetypicalspecificationprovidedisthemostlikelynormofthematchingfigureforallparts.
5.
ForeachDxxpin,headroomvoltageisthevoltageacrosstheinternalcurrentsinkconnectedtothatpin.
VHRx=VOUT-VLED.
Ifheadroomvoltagerequirementisnotmet,LEDcurrentregulationiscompromised.
2009FairchildSemiconductorCorporationwww.
fairchildsemi.
comFAN5701Rev.
1.
0.
37FAN5701—Compact6-LEDDriverforMobilePlatformsTypicalCharacteristicsVIN=3.
6V,TA=25C,ILED=20mA,andLEDcathodeterminals=0.
4V.
Figure4.
EfficiencywithLEDCurrentof8mAand20mAFigure5.
LEDCurrentMatchforallSixLEDChannelsatILED=20mAFigure6.
LEDCurrentVariationvs.
TemperatureFigure7.
ShutdownCurrentvs.
InputVoltageFigure8.
SwitchingFrequencyvs.
TemperaturewithLEDCurrentof20mAFigure9.
PWMDimmingVIN=3.
6V,ILEDx=20mA,EN=1kHzwith20%DutyCycle2009FairchildSemiconductorCorporationwww.
fairchildsemi.
comFAN5701Rev.
1.
0.
38FAN5701—Compact6-LEDDriverforMobilePlatformsTypicalCharacteristics(Continued)VIN=3.
6V,TA=25C,ILED=20mA,andLEDcathodeterminals=0.
4V.
Figure10.
ModeTransitionfrom1xto1.
5xMode,VIN=3.
6V(VCATHODERampUp)Figure11.
ModeTransitionfrom1.
5xto1xMode,VIN=3.
6V(VCATHODERampDown)Figure12.
LineTransientResponsein1xMode,VIN=3.
6V–4.
2V,ILEDx=20mAFigure13.
LineTransientResponsein1.
5xMode,VIN=2.
7V–3.
3V,ILED=20mAFigure14.
LineTransientfrom1xto1.
5xMode,VIN=3.
2V–4.
1V,ILEDx=20mAFigure15.
Soft-StartwithEN,VIN=3.
6V,ILEDx=20mA2009FairchildSemiconductorCorporationwww.
fairchildsemi.
comFAN5701Rev.
1.
0.
39FAN5701—Compact6-LEDDriverforMobilePlatformsCircuitDescriptionTheFAN5701isawhiteLEDdriversystembaseduponanadaptive1.
5x/1xchargepumpcapableofsupplyingupto180mAoftotaloutputcurrent.
ThetightlymatchedcurrentsinksensureuniformbrightnessacrosstheLEDs.
EachLEDisconfiguredinacommonanodeconfigurationwithitspeakdrivecurrentsetduringmanufacturing(seeOrderingInformationandISET).
ChargePumpThechargepumpoperatesineither1xmode,whereVOUTisconnectedtoVINthroughabypassswitch,orin1.
5xmode.
Thecircuitoperatesin1xmodeuntiltheLEDwiththehighestforwardvoltage(VLED(MAX))cannolongermaintaincurrentregulation.
Atthatpoint,1.
5xmodebegins.
Ifthelowestactivecathodevoltageisgreaterthan1.
8V,thechargepumpswitchesbackto1xmode.
Inadditiontohysteresis,a1mstransitiondelayisprovidedforthedevicetoignoreshort-durationinputvoltagedropsindecidingmodetransitions.
ICEnableWhentheENpinisLOW,allcircuitfunctionsaredisabled.
WhentheENpinHIGH,theentirechipisenabled.
BothPWMinputsarenowfunctional.
PWMDimmingExternalPWMinputs(groupAandgroupB)directlymodulateoutputcurrentsintheircorrespondingLEDchannelstovarytheperceivedLEDbrightness.
TwoPWMinputsareprovidedtocontroltwoindependentgroupsofLEDs,suchasthatofamaindisplaypanelandasecondarypanel.
TheycanalsobeconnectedtoasingleinputtosimultaneouslydimallsixLEDoutputs.
VOUTShort-CircuitProtectionTheFAN5701hasintegratedprotectioncircuitrytopreventthedevicefrombeingshortcircuitedwhentheoutputvoltagefallsbelow2V.
IfthisoccursFAN5701turnsoffthechargepumpandtheLEDdriveroutputs,butasmallbypassswitchislefton.
Thedevicemonitorstheoutputvoltagetodetermineifitisstillinshortcircuitconditionand,onceithaspassed,FAN5701soft-startsandreturnstonormaloperation.
VOUTOver-VoltageProtectionIftheoutputvoltagegoesabove6V,theFAN5701shutsdownuntilthisconditionhaspassed.
ThechargepumpandLEDdriveroutputsareturnedoff.
Oncethisconditionhaspassed,FAN5701soft-startsintonormaloperation.
2009FairchildSemiconductorCorporationwww.
fairchildsemi.
comFAN5701Rev.
1.
0.
310FAN5701—Compact6-LEDDriverforMobilePlatformsPhysicalDimensionsFigure16.
Wafer-LevelChip-ScalePackage(WLCSP)Product-SpecificDimensionsProductDEXYFAN5701UCxx1.
610mm1.
610mm0.
205mm0.
205mmPackagedrawingsareprovidedasaservicetocustomersconsideringFairchildcomponents.
Drawingsmaychangeinanymannerwithoutnotice.
Pleasenotetherevisionand/ordateonthedrawingandcontactaFairchildSemiconductorrepresentativetoverifyorobtainthemostrecentrevision.
PackagespecificationsdonotexpandthetermsofFairchild'sworldwidetermsandconditions,specificallythewarrantytherein,whichcoversFairchildproducts.
AlwaysvisitFairchildSemiconductor'sonlinepackagingareaforthemostrecentpackagedrawings:http://www.
fairchildsemi.
com/packaging/.
2009FairchildSemiconductorCorporationwww.
fairchildsemi.
comFAN5701Rev.
1.
0.
311FAN5701—Compact6-LEDDriverforMobilePlatformsPhysicalDimensions(Continued)Figure17.
UMLP-16DimensionsPackagedrawingsareprovidedasaservicetocustomersconsideringFairchildcomponents.
Drawingsmaychangeinanymannerwithoutnotice.
Pleasenotetherevisionand/ordateonthedrawingandcontactaFairchildSemiconductorrepresentativetoverifyorobtainthemostrecentrevision.
PackagespecificationsdonotexpandthetermsofFairchild'sworldwidetermsandconditions,specificallythewarrantytherein,whichcoversFairchildproducts.
AlwaysvisitFairchildSemiconductor'sonlinepackagingareaforthemostrecentpackagedrawings:http://www.
fairchildsemi.
com/packaging/.
2009FairchildSemiconductorCorporationwww.
fairchildsemi.
comFAN5701Rev.
1.
0.
312FAN5701—Compact6-LEDDriverforMobilePlatformsMouserElectronicsAuthorizedDistributorClicktoViewPricing,Inventory,Delivery&LifecycleInformation:FairchildSemiconductor:FAN5701UMP15XFAN5701UC15XFAN5701UC08XFAN5701UMP08XFAN5701UC20XFAN5701UC30XFAN5701UMP20XFAN5701UMP30X
- C2wwe2013年12月24日相关文档
- 万元wwe2013年12月24日
- 财产税wwe2013年12月24日
- 宝盈基金管理有限公司关于旗下基金投资中国软件非公开发行股票的公告
- 审字wwe2013年12月24日
- componentswwe2013年12月24日
- 董事会wwe2013年12月24日
选择Vultr VPS主机不支持支付宝付款的解决方案
在刚才更新Vultr 新年福利文章的时候突然想到前几天有网友问到自己有在Vultr 注册账户的时候无法用支付宝付款的问题，当时有帮助他给予解决，这里正好顺带一并介绍整理出来。毕竟对于来说，虽然使用的服务器不多，但是至少是见过世面的，大大小小商家的一些特性特征还是比较清楚的。在这篇文章中，和大家分享如果我们有在Vultr新注册账户或者充值购买云服务器的时候，不支持支付宝付款的原因。毕竟我们是知道的，...
易探云服务器怎么过户/转让?云服务器PUSH实操步骤
易探云服务器怎么过户/转让?易探云支持云服务器PUSH功能，该功能可将云服务器过户给指定用户。可带价PUSH，收到PUSH请求的用户在接收云服务器的同时，系统会扣除接收方的款项，同时扣除相关手续费，然后将款项打到发送方的账户下。易探云“PUSH服务器”的这一功能，可以让用户将闲置云服务器转让给更多需要购买的用户！易探云服务器怎么过户/PUSH?1.PUSH双方必须为认证用户：2.买家未接收前，卖家...
丽萨主机：美国CN2 GIA精品网/KVM/9折,美国原生IP,最低27元/月
丽萨主机怎么样?丽萨主机，团队于2017年成立。成立之初主要做的是 CDN 和域名等相关业务。最近开辟新领域，新增了独立服务器出租、VPS 等业务，为了保证业务质量从一开始就选择了中美之间的 CN2 GIA 国际精品网络，三网回程 CN2 GIA，电信去程 CN2 GIA + BGP 直连智能路由，联通移动去程直连，原生IP。适合对网络要求较高的用户，同时价格也比较亲民。点击进入：丽萨主机官方网站...
wwe2013年12月24日为你推荐
-
戴尔智能数据管理magentomagento是哪年开发出来的，伴随着什么系统，整体运行效果，同类型的系统？中国企业在线有什么B2B网站可以做国外的？多给些。。回答的好追加outlookexpressoutlook express 是什么？360免费建站我用的360免费建站，但自己买的一级域名要先备案，360不提供备案，我要怎么做才能把我的域名绑定网站啊？补贴eset三友网有了解唐山三友集团的吗？大学生待遇如何，工资收入，福利保障，工作环境等等缤纷网五彩缤纷的黑是什么梗？灌水机什么是论坛灌水机？在哪里可以下载到呢？地址栏图标网站添加地址栏图标代码怎么写？