LM5032 High Voltage Dual Interleaved Current …

1 ERROR AMP& ISOLATIONERROR AMP& to 75 VInputGND1 GND2 VPWRP roductFolderSample &BuyTechnicalDocumentsTools &SoftwareSupport &CommunityReferenceDesignLM5032 SNVS344B MARCH2005 REVISEDDECEMBER2014LM5032 High-VoltageDual InterleavedCurrentMode Controller1 Features3 DescriptionTheLM5032dualcurrentmodePWMco ntroller1 Two IndependentPWMC urrentModeControllerscontainsall the featuresneededto controleithertwo IntegratedHigh-VoltageStartupRegulatorin dependentforwarddc/dcconvertersor a singlehigh two two controllerchannelsoperate180 out SingleResistorOscillatorSettingto 2 MHzof SynchronizableOscillatorLM5032includesa startupregulatorthatoperates ProgrammableMaximumDutyCycleovera wideinputrangeup to 100 V and compound(bipolar+ CMOS)gatedriversthat providea robust MaximumDutyCycleFold-Backat the primaryside AdjustableTimerfor ,cycle-by- IntegratedSlopeCompensationcyclecurrentl imit,hiccupmodefaultoperationwithadjusta bleresponsetime,PWMslopecompensation, AdjustableLine UndervoltageLockoutsoft-start,anda 2-MHzcapableoscillatorwith IndependentlyAdjustableSoft-Start( ) DirectInterfacewith Opto-CouplerTransistorDeviceInformation( 1) ThermalShutdownPARTNUMBERPACKAGEBODYSIZE (NOM) TSSOP16-PinPackageLM5032 TSSOP(16) x (1)

2 For all availablepackages,see the orderableaddendumat2 Applicationsthe end of the datasheet. TelecommunicationPowerConverters IndustrialPowerConverters 42-VAutomotiveSystemsTypicalApplicationC ircuit1An IMPORTANTNOTICEat the end of this datasheetaddressesavailability,warranty, changes,use in safety-criticalapplications,intellectual propertymattersand MARCH2005 Applicationand Pin Configurationand Deviceand Mechanical,Packaging,and RevisionHistoryNOTE:Pagenumbersfor previousrevisionsmay differfrompagenumbersin the (April2013)to RevisionBPage AddedPinConfigurationandFunctionssection ,HandlingRatingtable,FeatureDescriptions ection,DeviceFunctionalModes,Application andImplementationsection,PowerSupplyReco mmendationssection,Layoutsection,Devicea ndDocumentationSupportsection,andMechani cal,Packaging, (April2013)to RevisionAPage Changedlayoutof NationalDataSheetto TI 2005 2014,TexasInstrumentsIncorporatedProduct FolderLinks.

3 LM503243215678 VINCOMP1CS1SS1 UVLOVCCOUT1 GND1 GND2 OUT2 RESSS2CS2 COMP2 MARCH2005 REVISEDDECEMBER20145 Pin Configurationand FunctionsPW Package16-PinTSSOPTop ViewPin the operatinginputrangeis 13 V to100 V with transientcapabilityto 105 ,Controller1 The COMP1inputprovidesvoltagefeedbackto the PWMcomparatorinvertinginputof Controller1 througha 3:1 cycleincreasesas the pull-upresistorto currentto ,Controller1 Inputfor currentmodecontroland the currentlimit theCS1pin OUT1pulseis CS1will adjust(increase) pin'svoltagemustnot ,Controller1An internal50- A currentsourcechargesan externalcapacitortoset the currentlimit restartsequence,theinternalcurrentsource is reducedto 1 A to increasethe V shutsoff Under-VoltageLockoutAn externalresistordividersets the inputvoltagethresholdto enablethe UVLO comparatorreferencevoltageis Aswitched20- A UVLOpin voltagealso controlsthe maximumduty cycleasdescribedin the is aminimumof 19 ,Controller1 Gatedriveroutputto the primaryside switchfor Controller1.

4 OUT1swingsbetweenVCCand GND1at a frequencyequalto half ,Controller1 Groundconnectionfor Controller1 includinggatedriver,PWMcontroller,soft-s tartand ,Controller2 Groundconnectionfor Controller2 includingthe gatedriver,PWMcontrollerand ,Controller2 Gatedriveroutputto the primaryside switchfor Controller2. OUT2swingsbetweenVCCand GND2at a frequencyequalto half externalcapacitorsets the time delaybeforeforcedrestartduringa sustainedperiodof hiccupmodecomparatorthresholdis 2005 2014,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback3 ProductFolderLinks:LM5032LM5032 SNVS344B MARCH2005 Functions(continued) ,Controller2An internal50- A currentsourcechargesan externalcapacitortoset the currentlimit restartsequence,theinternalcurrentsource is reducedto 1 A to increasethe V shutsoff ,Controller2 Inputfor currentmodecontroland the currentlimit theCS2pin V the OUT2pulseis CS2will adjust(increase) pin'svoltagemustnot ,Controller2 The COMP2inputprovidesvoltagefeedbackto the PWMcomparatorinvertinginputof Controller2 througha 3.

5 1 cycleincreasesas the pull-upresistorto V providesbias currentto externalresistorsets the maximumallowedduty cycleat OUT1and SynchronizingAn externalresistorsets the pin alsoinputacceptsac-coupledsynchronizatio npulsesfroman (1)(2)MINMAXUNITVIN to GND GND ,RESand DCLto GND Pinsto GND otherinputsto GND CLeadTemperature(Soldering4 sec),(3)260 CStoragetemperature,Tstg 55150 C(1)AbsoluteMaximumRatingsare limitsbeyondwhichdamageto the devicemay the deviceis intendedto be specificationsand test conditions,see theElectricalCharacteristics.(2)If Military/Aerospacespecifieddevicesare required,pleasecontactthe TexasInstrumentsSalesOffice/Distributors for availabilityandspecifications.

6 (3)For detailedinformationon solderingplasticTSSOP packages,referto the (ESD)ElectrostaticdischargeHuman-bodymod el(HBM),per ANSI/ESDA/JEDECJS-001(1) 2000V(1)JEDEC documentJEP155statesthat 500-VHBM allowssafe manufacturingwith a (unlessotherwisenoted)MINMAXUNITVIN Voltage13100 VExternalVoltageAppliedto VCC815 VOperatingJunctionTemperature 40125 C4 SubmitDocumentationFeedbackCopyright 2005 2014, MARCH2005 (1)PWUNIT16 PINSR JC(top)Junction-to-case(top) C/W (1)For moreinformationabouttraditionaland new thermalmetrics,see theICPackageThermalMetricsapplicationrep ort, and MAXlimitsapply 40 C TJ 125 C. VIN = 48 V, VCC= 10 V externallyapplied,RT= RDCL= , UVLO= , TJ= 25 C, unlessotherwisestated,see(1)and see(2).

7 SYMBOLPARAMETERTESTCONDITIONSMINTYPMAXUN ITSTARTUPREGULATOR(VIN,VCCPins)VCCRegVCC voltageExt. (Lim)VCCcurrentlimitVCC= supplydisconnected,VIN = (VCCincreasing)300 mV100 = 90V,UVLO= 0V500600 AICCInSupplycurrentinto VCCfromOutputloads= open,VCC= ACURRENTSENSEINPUT(CS1,CS2 Pins) delayto outputCS1(CS2)takenfromzeroto (OUT2)to fall to 90%of = 0 at50nsCS1(CS2)CS1(CS2)sink impedanceInternalpull-downFET (clocked)RCSE quivalentinputresistanceat CSCS ,internalFET CURRENTLIMITRESTART(RESPin) ADischargesink ASOFT-START(SS1,SS2 Pins)ISSC urrentsource(normal355065 Aoperation)Currentsourceduringa Alimit restartVSSO pencircuitvoltage5 VOSCILLATOR(RT/SYNCPin)FS1 Frequency1 (at OUT1,OUT2)RT= 183200217kHzFS2 Frequency2 (at OUT1,OUT2)

8 RT= 530600670kHz(1)All electricalcharacteristicshavingroomtempe raturelimitsare testedduringproductionwith TA= 25 C. All hot and cold limitsarespecifiedby correlatingthe electricalcharacteristicsto processand temperaturevariationsand applyingstatisticalprocesscontrol.(2)Typ icalspecificationsrepresentthe mostlikelyparametricnormat 25 C operationCopyright 2005 2014,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback5 ProductFolderLinks:LM5032LM5032 SNVS344B MARCH2005 (continued)MIN and MAXlimitsapply 40 C TJ 125 C. VIN = 48 V, VCC= 10 V externallyapplied,RT= RDCL= , UVLO= , TJ= 25 C, unlessotherwisestated,see(1)and see(2).SYMBOLPARAMETERTESTCONDITIONSMINT YPMAXUNITDC (COMP1,COMP2,DutyCycleLimitPins)Delayto outputCOMP1(COMP2)set to 2V.

9 CS1(CS2)50nssteppedfrom0 to OUT1(OUT2)to fall to 90%of = (COMP2)opencircuit5 VvoltageICOMPCOMP1(COMP2)shortcircuitCOM P1(COMP2)= (COMP2)to (PWM2)gainMinimumduty cycleSS1 (SS2)= 0V0%Maximumduty cycle1 UVLOpin = ,RDCL= RT, COMP176%(COMP2)= openMaximumduty cycle2 UVLOpin = ,RDCL= RT, COMP120%(COMP2)= openMaximumduty cycle3 UVLOpin = ,RDCL= RT/4, COMP120%(COMP2)= openMaximumduty cycle4 UVLOpin = ,RDCL= RT, COMP150%(COMP2)= openMaximumduty cycle5 UVLOpin = ,RDCL= RT/2, COMP140%(COMP2)= openSlopecompensationDeltaincreaseat PWMcomparatorto CS190mV(CS2)ChannelmismatchCS1(CS2)= COMP offsetSS1 (SS2)= (OUT1,OUT2)Outputhigh voltageIOUT= 50mA(source) voltageIOUT= 100 mA (sink) 1 nF12nsFall timeCLOAD= 1 CHysteresis20 C6 SubmitDocumentationFeedbackCopyright 2005 2014, MARCH2005 REVISEDDECEMBER2014 Figure1.

10 StartupSequenceCopyright 2005 2014,TexasInstrumentsIncorporatedSubmitD ocumentationFeedback7 ProductFolderLinks:LM5032051015202501234 5678 VCC (V)ICC (mA)1101001000RT (k:) FREQUENCY (MHz)02468101214 Voltage AT VIN (V)012345678 VCC (V)UVLO > Pin Unloaded891011121314 APPLIED VCC Voltage (V)020406080100 ICC (mA)15 OUT1, 2 = OpenOUT1, 2 load = 2200 pF50 kHz500 kHz1 MHz200 kHzOutput Drivers @ 1 MHz0204060801000100200300400500600 INPUT Current IIN (2A) Voltage AT VIN (V)UVLO = 0 VVCC Pin = OpenVCC Pin = 10V02040608010002468101214 INPUT Current IIN (mA) Voltage AT VIN (V)VCC pin = open,OUT1 & OUT2 load = 2200 pFVCC pin = open, Driver Outputs OpenUVLO > frequency = 200 kHzVCC pin = 10V, Driver Outputsopen or loadedLM5032 SNVS344B MARCH2005 IINvs VINF igure3.