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1235BordeauxDrive,Sunnyvale,CA94089Tel:408-222-8888www.
supertex.
comCL325GeneralDescriptionTheCL325isdesignedtodrive3stringsofLEDsataconstantcurrentof25mA.
Otherdriverswithcurrentsintherangeof20-30mAareavailable.
Thedrivecurrentisxed,witha±6%toleranceoveraVOUTrangeof4-15V.
SeparateenablepinsforeachchannelallowforPWMdimming,3-steplineardimming,orindividualdisconnectionoffaultyLEDstrings.
Over-temperatureprotectioncircuitryshutsdownall3channelswhenthenominaldietemperaturereaches135°C.
Normaloperationresumeswhenthedietemperaturedropsby30°C.
TheCL325isavailableinthe8-LeadSOIC(w/HeatSlug)packageandrequiresasingleceramicbypasscapacitorwhichmaybesharedamongseveraldrivers.
BlockDiagramandTypicalApplicationCircuit3-Channel25mALinearLEDDriverFeatures±6%currentaccuracy@4.
0-15V90VstandoffvoltageSeparateenablepinsforeachchannelallowforPWMdimmingOver-temperatureprotection8-LeadSOIC(w/HeatSlug)packageApplicationsLCDbacklightingIndicatorlampsEN1EN2EN3OUT1OUT2OUT3GNDVDD6.
5-90VCL325REGVINHostController12387654CIN100nF2CL3251235BordeauxDrive,Sunnyvale,CA94089Tel:408-222-8888www.
supertex.
comEN1GNDEN2EN3VINOUT3OUT1OUT2Undersideplateisground-GindicatespackageisRoHScompliant('Green')AbsoluteMaximumRatingsParameterValueSupplyvoltage,VIN-0.
5Vto+100VOutputvoltage,VOUT-0.
5Vto+100VEnablevoltage,VEN-0.
5Vto+6.
5VOperatingtemperature(1)-40°CStoragetemperature-65°Cto+150°CThermalCharacteristicsAbsoluteMaximumRatingsarethosevaluesbeyondwhichdamagetothedevicemayoccur.
Functionaloperationundertheseconditionsisnotimplied.
Continuousoperationofthedeviceattheabsoluteratinglevelmayaffectdevicereliability.
Allvoltagesarereferencedtodeviceground.
Note:Maximumjunctiontemperatureinternallylimited.
1.
PinConguration8-LeadSOIC(w/HeatSlug)(SG)ProductMarkingYY=YearSealedWW=WeekSealedL=LotNumber="Green"PackagingYYWWCL325LLLL8-LeadSOIC(w/HeatSlug)(SG)SymParameterMinTypMaxUnitsConditionsVINSupplyvoltage6.
5-90V---VOUTOutputvoltage4.
0-15VEN=090VEN=1fENEnabletogglingfrequency0-100kHz---TJJunctiontemperature-40-119oC---CINVINcapacitor-100-nF---RecommendedOperatingConditions(allvoltageswithrespecttoGNDpin)SymParameterMinTypMaxUnitsConditionsθJAThermalresistance,junctiontoambient-48-OC/WMountedonJEDECtestPCB(2s2p)TLIMOver-temperaturelimit120135150OC---THYSOver-temperaturehysteresis-30-OC---OrderingInformationDevice8-LeadSOIC(w/HeatSlug)4.
90x3.
90mmbody1.
70mmheight(max)1.
27mmpitchCL325CL325SG-G3CL3251235BordeauxDrive,Sunnyvale,CA94089Tel:408-222-8888www.
supertex.
comElectricalCharacteristics(Overrecommendedoperatingconditions.
TA@25OCunlessotherwisespecied.
)SymParameterMinTypMaxUnitsConditionsIINVINsupplycurrent-220250AEN1-3=1-2.
22.
3mAEN1-3=0IOUT(OFF)Outputcurrent,off-4.
010AENX=1IOUT(ON)Outputcurrent,on--26.
5mAENX=0,VOUT=0-4.
0V23.
525.
026.
5ENX=0,VOUT=4.
0-15V22.
525.
027.
5ENX=0,VOUT=15-90VVEN(ON)Enablevoltage,on--0.
8V---VEN(OFF)Enablevoltage,off2.
4--V---CENEnableinputcapacitance-5.
010pF---IENLEnablelowinputcurrent--1.
0AVEN=0VIENHEnablehighinputcurrent--1.
0AVEN=5.
0VtONEnableondelay-2.
02.
4s---tRISEOutputcurrentrisetime-1.
01.
2s---tOFFEnableoffdelay-440800ns---tFALLOutputcurrentfalltime-170250ns---TimingTemperatureEffectstRISEtFALL90%IOUT(ON)ENIOUTVEN(ON)VEN(OFF)tONtOFF10%IOUT(ON)1.
001.
050.
95-50050100150JunctionTemperature(°C)0.
900.
850.
80Current(Normalizedto25°C)12025-404CL3251235BordeauxDrive,Sunnyvale,CA94089Tel:408-222-8888www.
supertex.
comLoadRegulation05101520406080100scalechangeIOUT(normalizedtonominal)00.
200.
400.
600.
801.
001.
20VOUT(V)RecommendedPCBLayoutUndersideplatesolderedtocopperareaExposedcopperareamaybeplated1cm2exposedcopper1cm2exposedcopperHigherLEDCurrentEN1EN2EN3OUT1OUT2OUT3GNDVDDVLLCL325REGVINHostController12387654CIN100nFByparallelingoutputs,higherLEDcurrentscanbeachieved.
Inaddition,lineardimmingin3discretestepsmaybeobtainedbyenabling1,2,or3outputs.
5CL3251235BordeauxDrive,Sunnyvale,CA94089Tel:408-222-8888www.
supertex.
comLoweringCL325PowerDissipation:SeparateVINSupplyEN1EN2EN3OUT1OUT2OUT3GNDVDDCL325REGVINHostController12387654CIN100nFVINVLLCL325powerdissipationmaybeloweredbysupplyingtheCL325fromavoltagesource(VIN)thatislowerinvoltagethantheLEDsupply(VLL).
LoweringCL325PowerDissipation:DroppingResistorEN1EN2EN3OUT1OUT2OUT3GNDVDDCL325REGVINHostController12387654VLLRDROPRDROP5V2.
3mAwhere:RDROP=DroppingresistanceVLL(MIN)=minimumsupplyvoltageCIN100nF6CL3251235BordeauxDrive,Sunnyvale,CA94089Tel:408-222-8888www.
supertex.
comLoweringCL325PowerDissipation:ZenerDiodeEN1EN2EN3OUT1OUT2OUT3GNDVDDCL325REGVINHostController12387654VLLZDROPVZ<(VLL(MIN)-6.
5V)where:VZ=ZenerVoltageVLL(MIN)=minimumsupplyvoltageCIN100nFPinDescriptionPin#NameDescription1EN1Outputenable,activelow.
2EN23EN34GNDCircuitcommon.
5OUT3Constantcurrentoutput(sinking).
ConnectthecathodesoftheLEDstothesepins.
6OUT27OUT18VINSupplyvoltage.
6.
5Vto90V.
Bypasslocallywitha100nFcapacitortoground.
UndersidePlateGNDTheexposedundersideplateisinternallyconnectedtotheGNDpin.
Theplatemayeitherbeleftoatingorconnectedtoground.
SoldertheplatetoanexposedcopperareaonthePCBforheatsinkingpurposes(seerecommendedlayout).
Supertexinc.
doesnotrecommendtheuseofitsproductsinlifesupportapplications,andwillnotknowinglysellthemforuseinsuchapplicationsunlessitreceivesanadequate"productliabilityindemnificationinsuranceagreement.
"Supertexinc.
doesnotassumeresponsibilityforuseofdevicesdescribed,andlimitsitsliabilitytothereplacementofthedevicesdetermineddefectiveduetoworkmanship.
Noresponsibilityisassumedforpossibleomissionsandinaccuracies.
Circuitryandspecificationsaresubjecttochangewithoutnotice.
ForthelatestproductspecificationsrefertotheSupertexinc.
website:http//www.
supertex.
com.
2008Allrightsreserved.
Unauthorizeduseorreproductionisprohibited.
1235BordeauxDrive,Sunnyvale,CA94089Tel:408-222-8888www.
supertex.
com7CL325(Thepackagedrawing(s)inthisdatasheetmaynotreectthemostcurrentspecications.
Forthelatestpackageoutlineinformationgotohttp://www.
supertex.
com/packaging.
html.
)Doc.
#DSFP-CL325A0915088-LeadSOIC(NarrowBodyw/HeatSlug)PackageOutline(SG)4.
90x3.
90mmbody,1.
70mmheight(max),1.
27mmpitchSymbolAA1A2bDD1EE1E2ehLL1L2θθ1Dimension(mm)MIN1.
25*0.
001.
250.
314.
80*3.
305.
80*3.
80*2.
291.
27BSC0.
250.
401.
04REF0.
25BSC0O5ONOM----4.
90-6.
003.
90MAX1.
700.
151.
55*0.
515.
00*3.
816.
20*4.
00*2.
790.
501.
278O15OJEDECRegistrationMS-012,VariationBA,IssueE,Sept.
2005.
*ThisdimensionisnotspeciedintheoriginalJEDECdrawing.
Thevaluelistedisforreferenceonly.
Thisdimensionisanon-JEDECdimension.
Drawingsnottoscale.
SupertexDoc.
#:DSPD-8SOSG,VersionC090408.
DSeatingPlaneGaugePlaneLL1L2TopViewSideViewViewA-AViewBViewBθ1θE1EAA2A1AASeatingPlaneebhh81D1E2BottomViewExposedThermalPadZoneNote1Note1(IndexAreaD/2xE1/2)81Notes:APin1identiermustbelocatedintheindexareaindicated.
ThePin1identiercanbe:amoldedmark/identier;anembeddedmetalmarker;oraprintedindicator.
1.
MouserElectronicsAuthorizedDistributorClicktoViewPricing,Inventory,Delivery&LifecycleInformation:Microchip:CL325SG-G
supertex.
comCL325GeneralDescriptionTheCL325isdesignedtodrive3stringsofLEDsataconstantcurrentof25mA.
Otherdriverswithcurrentsintherangeof20-30mAareavailable.
Thedrivecurrentisxed,witha±6%toleranceoveraVOUTrangeof4-15V.
SeparateenablepinsforeachchannelallowforPWMdimming,3-steplineardimming,orindividualdisconnectionoffaultyLEDstrings.
Over-temperatureprotectioncircuitryshutsdownall3channelswhenthenominaldietemperaturereaches135°C.
Normaloperationresumeswhenthedietemperaturedropsby30°C.
TheCL325isavailableinthe8-LeadSOIC(w/HeatSlug)packageandrequiresasingleceramicbypasscapacitorwhichmaybesharedamongseveraldrivers.
BlockDiagramandTypicalApplicationCircuit3-Channel25mALinearLEDDriverFeatures±6%currentaccuracy@4.
0-15V90VstandoffvoltageSeparateenablepinsforeachchannelallowforPWMdimmingOver-temperatureprotection8-LeadSOIC(w/HeatSlug)packageApplicationsLCDbacklightingIndicatorlampsEN1EN2EN3OUT1OUT2OUT3GNDVDD6.
5-90VCL325REGVINHostController12387654CIN100nF2CL3251235BordeauxDrive,Sunnyvale,CA94089Tel:408-222-8888www.
supertex.
comEN1GNDEN2EN3VINOUT3OUT1OUT2Undersideplateisground-GindicatespackageisRoHScompliant('Green')AbsoluteMaximumRatingsParameterValueSupplyvoltage,VIN-0.
5Vto+100VOutputvoltage,VOUT-0.
5Vto+100VEnablevoltage,VEN-0.
5Vto+6.
5VOperatingtemperature(1)-40°CStoragetemperature-65°Cto+150°CThermalCharacteristicsAbsoluteMaximumRatingsarethosevaluesbeyondwhichdamagetothedevicemayoccur.
Functionaloperationundertheseconditionsisnotimplied.
Continuousoperationofthedeviceattheabsoluteratinglevelmayaffectdevicereliability.
Allvoltagesarereferencedtodeviceground.
Note:Maximumjunctiontemperatureinternallylimited.
1.
PinConguration8-LeadSOIC(w/HeatSlug)(SG)ProductMarkingYY=YearSealedWW=WeekSealedL=LotNumber="Green"PackagingYYWWCL325LLLL8-LeadSOIC(w/HeatSlug)(SG)SymParameterMinTypMaxUnitsConditionsVINSupplyvoltage6.
5-90V---VOUTOutputvoltage4.
0-15VEN=090VEN=1fENEnabletogglingfrequency0-100kHz---TJJunctiontemperature-40-119oC---CINVINcapacitor-100-nF---RecommendedOperatingConditions(allvoltageswithrespecttoGNDpin)SymParameterMinTypMaxUnitsConditionsθJAThermalresistance,junctiontoambient-48-OC/WMountedonJEDECtestPCB(2s2p)TLIMOver-temperaturelimit120135150OC---THYSOver-temperaturehysteresis-30-OC---OrderingInformationDevice8-LeadSOIC(w/HeatSlug)4.
90x3.
90mmbody1.
70mmheight(max)1.
27mmpitchCL325CL325SG-G3CL3251235BordeauxDrive,Sunnyvale,CA94089Tel:408-222-8888www.
supertex.
comElectricalCharacteristics(Overrecommendedoperatingconditions.
TA@25OCunlessotherwisespecied.
)SymParameterMinTypMaxUnitsConditionsIINVINsupplycurrent-220250AEN1-3=1-2.
22.
3mAEN1-3=0IOUT(OFF)Outputcurrent,off-4.
010AENX=1IOUT(ON)Outputcurrent,on--26.
5mAENX=0,VOUT=0-4.
0V23.
525.
026.
5ENX=0,VOUT=4.
0-15V22.
525.
027.
5ENX=0,VOUT=15-90VVEN(ON)Enablevoltage,on--0.
8V---VEN(OFF)Enablevoltage,off2.
4--V---CENEnableinputcapacitance-5.
010pF---IENLEnablelowinputcurrent--1.
0AVEN=0VIENHEnablehighinputcurrent--1.
0AVEN=5.
0VtONEnableondelay-2.
02.
4s---tRISEOutputcurrentrisetime-1.
01.
2s---tOFFEnableoffdelay-440800ns---tFALLOutputcurrentfalltime-170250ns---TimingTemperatureEffectstRISEtFALL90%IOUT(ON)ENIOUTVEN(ON)VEN(OFF)tONtOFF10%IOUT(ON)1.
001.
050.
95-50050100150JunctionTemperature(°C)0.
900.
850.
80Current(Normalizedto25°C)12025-404CL3251235BordeauxDrive,Sunnyvale,CA94089Tel:408-222-8888www.
supertex.
comLoadRegulation05101520406080100scalechangeIOUT(normalizedtonominal)00.
200.
400.
600.
801.
001.
20VOUT(V)RecommendedPCBLayoutUndersideplatesolderedtocopperareaExposedcopperareamaybeplated1cm2exposedcopper1cm2exposedcopperHigherLEDCurrentEN1EN2EN3OUT1OUT2OUT3GNDVDDVLLCL325REGVINHostController12387654CIN100nFByparallelingoutputs,higherLEDcurrentscanbeachieved.
Inaddition,lineardimmingin3discretestepsmaybeobtainedbyenabling1,2,or3outputs.
5CL3251235BordeauxDrive,Sunnyvale,CA94089Tel:408-222-8888www.
supertex.
comLoweringCL325PowerDissipation:SeparateVINSupplyEN1EN2EN3OUT1OUT2OUT3GNDVDDCL325REGVINHostController12387654CIN100nFVINVLLCL325powerdissipationmaybeloweredbysupplyingtheCL325fromavoltagesource(VIN)thatislowerinvoltagethantheLEDsupply(VLL).
LoweringCL325PowerDissipation:DroppingResistorEN1EN2EN3OUT1OUT2OUT3GNDVDDCL325REGVINHostController12387654VLLRDROPRDROP
3mAwhere:RDROP=DroppingresistanceVLL(MIN)=minimumsupplyvoltageCIN100nF6CL3251235BordeauxDrive,Sunnyvale,CA94089Tel:408-222-8888www.
supertex.
comLoweringCL325PowerDissipation:ZenerDiodeEN1EN2EN3OUT1OUT2OUT3GNDVDDCL325REGVINHostController12387654VLLZDROPVZ<(VLL(MIN)-6.
5V)where:VZ=ZenerVoltageVLL(MIN)=minimumsupplyvoltageCIN100nFPinDescriptionPin#NameDescription1EN1Outputenable,activelow.
2EN23EN34GNDCircuitcommon.
5OUT3Constantcurrentoutput(sinking).
ConnectthecathodesoftheLEDstothesepins.
6OUT27OUT18VINSupplyvoltage.
6.
5Vto90V.
Bypasslocallywitha100nFcapacitortoground.
UndersidePlateGNDTheexposedundersideplateisinternallyconnectedtotheGNDpin.
Theplatemayeitherbeleftoatingorconnectedtoground.
SoldertheplatetoanexposedcopperareaonthePCBforheatsinkingpurposes(seerecommendedlayout).
Supertexinc.
doesnotrecommendtheuseofitsproductsinlifesupportapplications,andwillnotknowinglysellthemforuseinsuchapplicationsunlessitreceivesanadequate"productliabilityindemnificationinsuranceagreement.
"Supertexinc.
doesnotassumeresponsibilityforuseofdevicesdescribed,andlimitsitsliabilitytothereplacementofthedevicesdetermineddefectiveduetoworkmanship.
Noresponsibilityisassumedforpossibleomissionsandinaccuracies.
Circuitryandspecificationsaresubjecttochangewithoutnotice.
ForthelatestproductspecificationsrefertotheSupertexinc.
website:http//www.
supertex.
com.
2008Allrightsreserved.
Unauthorizeduseorreproductionisprohibited.
1235BordeauxDrive,Sunnyvale,CA94089Tel:408-222-8888www.
supertex.
com7CL325(Thepackagedrawing(s)inthisdatasheetmaynotreectthemostcurrentspecications.
Forthelatestpackageoutlineinformationgotohttp://www.
supertex.
com/packaging.
html.
)Doc.
#DSFP-CL325A0915088-LeadSOIC(NarrowBodyw/HeatSlug)PackageOutline(SG)4.
90x3.
90mmbody,1.
70mmheight(max),1.
27mmpitchSymbolAA1A2bDD1EE1E2ehLL1L2θθ1Dimension(mm)MIN1.
25*0.
001.
250.
314.
80*3.
305.
80*3.
80*2.
291.
27BSC0.
250.
401.
04REF0.
25BSC0O5ONOM----4.
90-6.
003.
90MAX1.
700.
151.
55*0.
515.
00*3.
816.
20*4.
00*2.
790.
501.
278O15OJEDECRegistrationMS-012,VariationBA,IssueE,Sept.
2005.
*ThisdimensionisnotspeciedintheoriginalJEDECdrawing.
Thevaluelistedisforreferenceonly.
Thisdimensionisanon-JEDECdimension.
Drawingsnottoscale.
SupertexDoc.
#:DSPD-8SOSG,VersionC090408.
DSeatingPlaneGaugePlaneLL1L2TopViewSideViewViewA-AViewBViewBθ1θE1EAA2A1AASeatingPlaneebhh81D1E2BottomViewExposedThermalPadZoneNote1Note1(IndexAreaD/2xE1/2)81Notes:APin1identiermustbelocatedintheindexareaindicated.
ThePin1identiercanbe:amoldedmark/identier;anembeddedmetalmarker;oraprintedindicator.
1.
MouserElectronicsAuthorizedDistributorClicktoViewPricing,Inventory,Delivery&LifecycleInformation:Microchip:CL325SG-G
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