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DC/DCConverterProgrammable,SingleOutput,1.
1V-1.
85Vout@60ABUSCONVERTER48Vin,12Vout@20A1150EglintonAvenueEast4607S.
E.
InternationalWayToronto,OntarioM3C1H7Milwaukie,Oregon972221-866-740-1232www.
cd4power.
com1-971-206-2800QUS20-120-NHDR_084-20859-00_RevK_Jan30-2006.
fm1of9Features48vin,Isolated,4:1FixedConversionRatio(12vNominalOut)240wattMaxOutputParallelForHigherOutputPower±10%CurrentShareAccuracyOver-TemperatureProtection96%EfficiencyRemoteEnable(PrimarySide)PositiveorNegativeEnableLogicCurrentLimitIndustryStandardBrickFootprintThisproductisnotfuseprotected.
Userisresponsibleforprovidingsystemprotection.
Consultfactoryforapplicationinformation.
Table1:InputCharacteristicsNotesandConditions(1)MinTypMaxUnitsInputVoltageOperatingRange364855VdcInputVoltageAbsoluteMaximum60VdcInputUndervoltageLockoutTurn-onThreshold36.
537.
6VdcTurn-offThreshold34.
535.
5VdcMaximumInputCurrentSteady-State(20Ampoutput)5.
1AdcNo-LoadInputCurrentEnablestate,onLoad(48Vin)72mADisabledInputCurrentDisabledState(48Vinput)21mAInputReflectedRippleCurrent(2)50mArmsInrushCurrentTransient0.
20A2sEnable-NegativeLogicVersionInternal10Kpull-upto6.
2VOnStateRange-0.
60.
7VdcOffStateRange0.
86.
2VdcEnable-PositiveLogicVersionInternal100Kpull-downtogndOnStateRange0.
86.
2VdcOffStateRange-0.
60.
7VdcTable2:OutputCharacteristicsNotesandConditions(1)MinTypMaxUnitsOutputVoltageSetPoint(Vin/4)+1%/-1%12VdcOutputLoadRegulation(Vin/4)+1%/-5%-5-31%OutputVoltageTotalRegulation8.
513.
9VdcOutputRippleVoltage&Noise(3)20MHzBandwidth90150mVp-pOutputCurrentOperatingRange(4)020AEfficiencyIo=20A,Vin=48V(Seecurves)95.
6%Turn-onTimeVinpresent:Enableto90%Vout10mSDC/DCConverterProgrammable,SingleOutput,1.
1V-1.
85Vout@60ABUSCONVERTER48Vin,12Vout@20A1150EglintonAvenueEast4607S.
E.
InternationalWayToronto,OntarioM3C1H7Milwaukie,Oregon972221-866-740-1232www.
cd4power.
com1-971-206-2800QUS20-120-NHDR_084-20859-00_RevK_Jan30-2006.
fm2of9Notes:1.
Vin=48Vdc,Ta=20°C,Airflow=200LFMunlessotherwisenoted.
2.
InputReflectedRippleCurrentisspecifiedwhenmeasuredwitha120F63Velectrolyticcapacitoracrosstheinputpins.
3.
OutputRippleVoltageisspecifiedwhenmeasuredwitha270Felectrolyticanda10Fceramiccapacitorattheconverterout-putpins.
4.
De-ratingcurvesareconductedinacontrolledenvironment.
Endapplicationtestingisrequiredtoensurethehotspottempera-tureisbelowthemaximumspecified.
Recommendedairflowdirectionisinputtooutputorcross-wise.
Foroutputtoinputair-flowsubtract3Afromderatingcurves.
5.
Transientresponseisspecifiedwith270Felectrolyticand10Fceramicattheconverteroutputpins.
TransientResponse(5)5AStep0.
1A/S,Vo150mVRecoveryTime100SMaximumOutputCapacitanceMax3000FTable3:ProtectionCharacteristicsNotesandConditions(1)MinTypMaxUnitsOutputOvercurrentInceptionLimit202730AdcOutputOvercurrentShutdown(Latchingaftersecondre-try)RestartRate1700mSShortCircuitCurrentPeak30ApkOvertemperatureShutdownNon-Latching125°COvertemperatureRestartHysteresis10°CTable4:GeneralCharacteristicsNotesandConditions(1)MinTypMaxUnitsIsolationVoltageInputtoOutput2000VdcIsolationResistanceInputtoOutput10MohmStorageTemperatureRangeNon-condensing-40125°COperatingTemperatureRange-4085°CAgencyApprovalsUL60950-1,IEC60950-1,TUV60950-1MaterialFlammabilityUL94V-0MTBFCalculated(RACPRISM)50°C1.
56x106HrsDemonstrated3.
0x106HrsDimensionsHorizontal2.
30"Lx1.
45"Wx0.
45"HWeight35gTable2:OutputCharacteristicsNotesandConditions(1)MinTypMaxUnitsDC/DCConverterProgrammable,SingleOutput,1.
1V-1.
85Vout@60ABUSCONVERTER48Vin,12Vout@20A1150EglintonAvenueEast4607S.
E.
InternationalWayToronto,OntarioM3C1H7Milwaukie,Oregon972221-866-740-1232www.
cd4power.
com1-971-206-2800QUS20-120-NHDR_084-20859-00_RevK_Jan30-2006.
fm3of9MechanicalInformation-HorizontalFigure1PinAssignment-HorizontalTable5:Pin#PinNameFunctionNotes&Conditions1VIN+Vin36to55Vdc2ON/OFFReferencedtoVin-3VIN-Primaryreturn4VOUT-Secondaryreturn6VOUT+Output,12Vnominal,20AmpmaxDC/DCConverterProgrammable,SingleOutput,1.
1V-1.
85Vout@60ABUSCONVERTER48Vin,12Vout@20A1150EglintonAvenueEast4607S.
E.
InternationalWayToronto,OntarioM3C1H7Milwaukie,Oregon972221-866-740-1232www.
cd4power.
com1-971-206-2800QUS20-120-NHDR_084-20859-00_RevK_Jan30-2006.
fm4of9EfficiencyCurvesFigure2Voutvs.
LoadFigure3EfficiencyvsIout889092949698024681012141618202224Iout(A)Eff%Vin=36VVin=42VVin=48VVin=55VVoutvsIout67891011121314024681012141618202224Iout(A)Vout(V)Vin=36VVin=42VVin=48VVin=55VDC/DCConverterProgrammable,SingleOutput,1.
1V-1.
85Vout@60ABUSCONVERTER48Vin,12Vout@20A1150EglintonAvenueEast4607S.
E.
InternationalWayToronto,OntarioM3C1H7Milwaukie,Oregon972221-866-740-1232www.
cd4power.
com1-971-206-2800QUS20-120-NHDR_084-20859-00_RevK_Jan30-2006.
fm5of9Derating-HorizontalMountFigure4Vin=36V1520253020406080AmbientTemp(C)LoadCurrent(A)200LFM300LFM400LFMVin=42V1520253020406080AmbientTemp(C)LoadCurrent(A)200LFM300LFM400LFMVin=48V1520253020406080AmbientTemp(C)LoadCurrent(A)200LFM300LFM400LFMVin=55V1517192123252720304050607080AmbientTemp(C)LoadCurrent(A)200LFM300LFM400LFMPowerCurvesat200LFM15020025030020304050607080AmbientTemp(C)OutputPower(W)Vin=36VVin=42VVin=48VVin=55VDC/DCConverterProgrammable,SingleOutput,1.
1V-1.
85Vout@60ABUSCONVERTER48Vin,12Vout@20A1150EglintonAvenueEast4607S.
E.
InternationalWayToronto,OntarioM3C1H7Milwaukie,Oregon972221-866-740-1232www.
cd4power.
com1-971-206-2800QUS20-120-NHDR_084-20859-00_RevK_Jan30-2006.
fm6of9ThermalPerformance-HorizontalMountFigure5StartupfromEnableFigure6Vin=48V,Iout=20AVin=48V,Iout=0ADC/DCConverterProgrammable,SingleOutput,1.
1V-1.
85Vout@60ABUSCONVERTER48Vin,12Vout@20A1150EglintonAvenueEast4607S.
E.
InternationalWayToronto,OntarioM3C1H7Milwaukie,Oregon972221-866-740-1232www.
cd4power.
com1-971-206-2800QUS20-120-NHDR_084-20859-00_RevK_Jan30-2006.
fm7of9TransientResponseFigure7OutputVoltageRippleFigure8Iout10Ato15Aat0.
1A/SCH1Vout50mV/div,CH2Iout5A/divVin=48V,Iout=20A;BW=20MHzDC/DCConverterProgrammable,SingleOutput,1.
1V-1.
85Vout@60ABUSCONVERTER48Vin,12Vout@20A1150EglintonAvenueEast4607S.
E.
InternationalWayToronto,OntarioM3C1H7Milwaukie,Oregon972221-866-740-1232www.
cd4power.
com1-971-206-2800QUS20-120-NHDR_084-20859-00_RevK_Jan30-2006.
fm8of9InputRippleFigure9Vin=48V,Iout=20A;BW=20MHz5mA/divDC/DCConverterProgrammable,SingleOutput,1.
1V-1.
85Vout@60ABUSCONVERTER48Vin,12Vout@20A411814thAvenue,Unit44607S.
E.
InternationalWayMarkham,OntarioL3R0J3Milwaukie,Oregon972221-905-944-2850www.
cd4power.
com1-971-206-2800QUS20-120-NHDR_084-20859-00_RevK_Jan30-2006.
fm9of9C&DTechnologies,Inc.
reservestherighttoalterorimprovethespecification,internaldesignormanufacturingprocessatanytime,withoutnotice.
Pleasecheckwithyoursupplierorvisitourwebsitetoensurethatyouhavethecurrentandcompletespecificationforyourproductbeforeuse.
C&DTechnologies,Inc.
2004Nopartofthispublicationmaybecopied,transmitted,orstoredinaretrievalsystemorreproducedinanywayincluding,butnotlimitedto,photography,photocopy,magneticorotherrecordingmeans,withoutpriorwrittenpermissionfromC&DTechnologies,Inc.
Instructionsforuseareavailablefrom:www.
cd4power.
comOrderingInformationManufacturingp/n:073-20859-40CThe073-20859-40CBusConverterisincompliancewiththeEuropeanUnionDirective2002/95/EC(RoHS)withrespecttothefollowingsubstances:lead(Pb),cadmium(Cd),mercury(Hg),hexavalentchromium,polybrominatedbiphenyls(PBB)orpolybrominateddiphenylethers(PBDE).
RoHSProcessNoteThisproductisnotintendedtogothroughareflowsolderprocess.
Usewavesolder,selectivesolderorhandsolderprocesswithapeaktemperatureof260°Cfor10seconds.
QUS20-120-NHDRQuarterBrickOutlineUnregulatedSingleOutputOutputCurrentOutputVoltageReservedforInternalUsePinLength(L)D=0.
180"FormFactorH=HorizontalEnableLogicN=Negative20=20A120=12V
1V-1.
85Vout@60ABUSCONVERTER48Vin,12Vout@20A1150EglintonAvenueEast4607S.
E.
InternationalWayToronto,OntarioM3C1H7Milwaukie,Oregon972221-866-740-1232www.
cd4power.
com1-971-206-2800QUS20-120-NHDR_084-20859-00_RevK_Jan30-2006.
fm1of9Features48vin,Isolated,4:1FixedConversionRatio(12vNominalOut)240wattMaxOutputParallelForHigherOutputPower±10%CurrentShareAccuracyOver-TemperatureProtection96%EfficiencyRemoteEnable(PrimarySide)PositiveorNegativeEnableLogicCurrentLimitIndustryStandardBrickFootprintThisproductisnotfuseprotected.
Userisresponsibleforprovidingsystemprotection.
Consultfactoryforapplicationinformation.
Table1:InputCharacteristicsNotesandConditions(1)MinTypMaxUnitsInputVoltageOperatingRange364855VdcInputVoltageAbsoluteMaximum60VdcInputUndervoltageLockoutTurn-onThreshold36.
537.
6VdcTurn-offThreshold34.
535.
5VdcMaximumInputCurrentSteady-State(20Ampoutput)5.
1AdcNo-LoadInputCurrentEnablestate,onLoad(48Vin)72mADisabledInputCurrentDisabledState(48Vinput)21mAInputReflectedRippleCurrent(2)50mArmsInrushCurrentTransient0.
20A2sEnable-NegativeLogicVersionInternal10Kpull-upto6.
2VOnStateRange-0.
60.
7VdcOffStateRange0.
86.
2VdcEnable-PositiveLogicVersionInternal100Kpull-downtogndOnStateRange0.
86.
2VdcOffStateRange-0.
60.
7VdcTable2:OutputCharacteristicsNotesandConditions(1)MinTypMaxUnitsOutputVoltageSetPoint(Vin/4)+1%/-1%12VdcOutputLoadRegulation(Vin/4)+1%/-5%-5-31%OutputVoltageTotalRegulation8.
513.
9VdcOutputRippleVoltage&Noise(3)20MHzBandwidth90150mVp-pOutputCurrentOperatingRange(4)020AEfficiencyIo=20A,Vin=48V(Seecurves)95.
6%Turn-onTimeVinpresent:Enableto90%Vout10mSDC/DCConverterProgrammable,SingleOutput,1.
1V-1.
85Vout@60ABUSCONVERTER48Vin,12Vout@20A1150EglintonAvenueEast4607S.
E.
InternationalWayToronto,OntarioM3C1H7Milwaukie,Oregon972221-866-740-1232www.
cd4power.
com1-971-206-2800QUS20-120-NHDR_084-20859-00_RevK_Jan30-2006.
fm2of9Notes:1.
Vin=48Vdc,Ta=20°C,Airflow=200LFMunlessotherwisenoted.
2.
InputReflectedRippleCurrentisspecifiedwhenmeasuredwitha120F63Velectrolyticcapacitoracrosstheinputpins.
3.
OutputRippleVoltageisspecifiedwhenmeasuredwitha270Felectrolyticanda10Fceramiccapacitorattheconverterout-putpins.
4.
De-ratingcurvesareconductedinacontrolledenvironment.
Endapplicationtestingisrequiredtoensurethehotspottempera-tureisbelowthemaximumspecified.
Recommendedairflowdirectionisinputtooutputorcross-wise.
Foroutputtoinputair-flowsubtract3Afromderatingcurves.
5.
Transientresponseisspecifiedwith270Felectrolyticand10Fceramicattheconverteroutputpins.
TransientResponse(5)5AStep0.
1A/S,Vo150mVRecoveryTime100SMaximumOutputCapacitanceMax3000FTable3:ProtectionCharacteristicsNotesandConditions(1)MinTypMaxUnitsOutputOvercurrentInceptionLimit202730AdcOutputOvercurrentShutdown(Latchingaftersecondre-try)RestartRate1700mSShortCircuitCurrentPeak30ApkOvertemperatureShutdownNon-Latching125°COvertemperatureRestartHysteresis10°CTable4:GeneralCharacteristicsNotesandConditions(1)MinTypMaxUnitsIsolationVoltageInputtoOutput2000VdcIsolationResistanceInputtoOutput10MohmStorageTemperatureRangeNon-condensing-40125°COperatingTemperatureRange-4085°CAgencyApprovalsUL60950-1,IEC60950-1,TUV60950-1MaterialFlammabilityUL94V-0MTBFCalculated(RACPRISM)50°C1.
56x106HrsDemonstrated3.
0x106HrsDimensionsHorizontal2.
30"Lx1.
45"Wx0.
45"HWeight35gTable2:OutputCharacteristicsNotesandConditions(1)MinTypMaxUnitsDC/DCConverterProgrammable,SingleOutput,1.
1V-1.
85Vout@60ABUSCONVERTER48Vin,12Vout@20A1150EglintonAvenueEast4607S.
E.
InternationalWayToronto,OntarioM3C1H7Milwaukie,Oregon972221-866-740-1232www.
cd4power.
com1-971-206-2800QUS20-120-NHDR_084-20859-00_RevK_Jan30-2006.
fm3of9MechanicalInformation-HorizontalFigure1PinAssignment-HorizontalTable5:Pin#PinNameFunctionNotes&Conditions1VIN+Vin36to55Vdc2ON/OFFReferencedtoVin-3VIN-Primaryreturn4VOUT-Secondaryreturn6VOUT+Output,12Vnominal,20AmpmaxDC/DCConverterProgrammable,SingleOutput,1.
1V-1.
85Vout@60ABUSCONVERTER48Vin,12Vout@20A1150EglintonAvenueEast4607S.
E.
InternationalWayToronto,OntarioM3C1H7Milwaukie,Oregon972221-866-740-1232www.
cd4power.
com1-971-206-2800QUS20-120-NHDR_084-20859-00_RevK_Jan30-2006.
fm4of9EfficiencyCurvesFigure2Voutvs.
LoadFigure3EfficiencyvsIout889092949698024681012141618202224Iout(A)Eff%Vin=36VVin=42VVin=48VVin=55VVoutvsIout67891011121314024681012141618202224Iout(A)Vout(V)Vin=36VVin=42VVin=48VVin=55VDC/DCConverterProgrammable,SingleOutput,1.
1V-1.
85Vout@60ABUSCONVERTER48Vin,12Vout@20A1150EglintonAvenueEast4607S.
E.
InternationalWayToronto,OntarioM3C1H7Milwaukie,Oregon972221-866-740-1232www.
cd4power.
com1-971-206-2800QUS20-120-NHDR_084-20859-00_RevK_Jan30-2006.
fm5of9Derating-HorizontalMountFigure4Vin=36V1520253020406080AmbientTemp(C)LoadCurrent(A)200LFM300LFM400LFMVin=42V1520253020406080AmbientTemp(C)LoadCurrent(A)200LFM300LFM400LFMVin=48V1520253020406080AmbientTemp(C)LoadCurrent(A)200LFM300LFM400LFMVin=55V1517192123252720304050607080AmbientTemp(C)LoadCurrent(A)200LFM300LFM400LFMPowerCurvesat200LFM15020025030020304050607080AmbientTemp(C)OutputPower(W)Vin=36VVin=42VVin=48VVin=55VDC/DCConverterProgrammable,SingleOutput,1.
1V-1.
85Vout@60ABUSCONVERTER48Vin,12Vout@20A1150EglintonAvenueEast4607S.
E.
InternationalWayToronto,OntarioM3C1H7Milwaukie,Oregon972221-866-740-1232www.
cd4power.
com1-971-206-2800QUS20-120-NHDR_084-20859-00_RevK_Jan30-2006.
fm6of9ThermalPerformance-HorizontalMountFigure5StartupfromEnableFigure6Vin=48V,Iout=20AVin=48V,Iout=0ADC/DCConverterProgrammable,SingleOutput,1.
1V-1.
85Vout@60ABUSCONVERTER48Vin,12Vout@20A1150EglintonAvenueEast4607S.
E.
InternationalWayToronto,OntarioM3C1H7Milwaukie,Oregon972221-866-740-1232www.
cd4power.
com1-971-206-2800QUS20-120-NHDR_084-20859-00_RevK_Jan30-2006.
fm7of9TransientResponseFigure7OutputVoltageRippleFigure8Iout10Ato15Aat0.
1A/SCH1Vout50mV/div,CH2Iout5A/divVin=48V,Iout=20A;BW=20MHzDC/DCConverterProgrammable,SingleOutput,1.
1V-1.
85Vout@60ABUSCONVERTER48Vin,12Vout@20A1150EglintonAvenueEast4607S.
E.
InternationalWayToronto,OntarioM3C1H7Milwaukie,Oregon972221-866-740-1232www.
cd4power.
com1-971-206-2800QUS20-120-NHDR_084-20859-00_RevK_Jan30-2006.
fm8of9InputRippleFigure9Vin=48V,Iout=20A;BW=20MHz5mA/divDC/DCConverterProgrammable,SingleOutput,1.
1V-1.
85Vout@60ABUSCONVERTER48Vin,12Vout@20A411814thAvenue,Unit44607S.
E.
InternationalWayMarkham,OntarioL3R0J3Milwaukie,Oregon972221-905-944-2850www.
cd4power.
com1-971-206-2800QUS20-120-NHDR_084-20859-00_RevK_Jan30-2006.
fm9of9C&DTechnologies,Inc.
reservestherighttoalterorimprovethespecification,internaldesignormanufacturingprocessatanytime,withoutnotice.
Pleasecheckwithyoursupplierorvisitourwebsitetoensurethatyouhavethecurrentandcompletespecificationforyourproductbeforeuse.
C&DTechnologies,Inc.
2004Nopartofthispublicationmaybecopied,transmitted,orstoredinaretrievalsystemorreproducedinanywayincluding,butnotlimitedto,photography,photocopy,magneticorotherrecordingmeans,withoutpriorwrittenpermissionfromC&DTechnologies,Inc.
Instructionsforuseareavailablefrom:www.
cd4power.
comOrderingInformationManufacturingp/n:073-20859-40CThe073-20859-40CBusConverterisincompliancewiththeEuropeanUnionDirective2002/95/EC(RoHS)withrespecttothefollowingsubstances:lead(Pb),cadmium(Cd),mercury(Hg),hexavalentchromium,polybrominatedbiphenyls(PBB)orpolybrominateddiphenylethers(PBDE).
RoHSProcessNoteThisproductisnotintendedtogothroughareflowsolderprocess.
Usewavesolder,selectivesolderorhandsolderprocesswithapeaktemperatureof260°Cfor10seconds.
QUS20-120-NHDRQuarterBrickOutlineUnregulatedSingleOutputOutputCurrentOutputVoltageReservedforInternalUsePinLength(L)D=0.
180"FormFactorH=HorizontalEnableLogicN=Negative20=20A120=12V
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