UC1714, UC1715, UC2714 UC2715, UC3714, UC3715 www.ti.com SLUS170B –FEBRUARY1999–REVISEDMAY2013 Complementary Switch FET Drivers CheckforSamples:UC1714,UC1715,UC2714,UC2715,UC3714,UC3715 FEATURES DESCRIPTION 1 • SingleInput(PWMandTTLCompatible) These two families of high speed drivers are designed to provide drive waveforms for • High-CurrentPowerFETDriver,1-ASource complementary switches. Complementary switch and2-ASink configurations are commonly used in synchronous • AuxiliaryOutputFETDriver,0.5-ASourceand rectification circuits and active clamp/reset circuits, 1-ASink which provide zero voltage switching. In order to facilitate the soft switching transitions, independently • TimeDelaysBetweenPowerandAuxiliary programmable delays between the two output OutputsIndependentlyProgrammablefrom50 waveforms are provided on these drivers. The delay to500-ns pins also have true-zero voltage-sensing capability • TimeDelayorTrueZero-VoltageOperation which allows immediate activation of the IndependentlyConfigurableforEachOutput corresponding switch when zero voltage is applied. • SwitchingFrequencyto1MHz These devices require a PWM-type input to operate and interface with commonly available PWM • Typical50-nsPropagationDelays controllers. • ENBLPinActivates220-μASleepMode In the UC1714 series, the AUX output is inverted to • PowerOutputisActive-LowinSleepMode allow driving a p-channel MOSFET. In the UC1715 • SynchronousRectifierDriver series, the two outputs are configured in a true complementaryfashion. BLOCKDIAGRAM 50ns –500ns 2 PWR TIMER INPUT 6 S Q T1 7 R UC1714 VREF ONLY 50ns –500ns 4 AUX TIMER S 1 VCC Q VCC 5V LOGIC T2 5 R BIAS GATES VREF ENBL 3V TIMER REF GND 3 GND 1.4V ENBL 8 ENABLE PinnumbersrefertoJ,NandDpackages. 1 Pleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsof TexasInstrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet. UNLESS OTHERWISE NOTED this document contains Copyright©1999–2013,TexasInstrumentsIncorporated PRODUCTION DATA information current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarilyincludetestingofallparameters.

UC1714, UC1715, UC2714 UC2715, UC3714, UC3715 SLUS170B –FEBRUARY1999–REVISEDMAY2013 www.ti.com ABSOLUTE MAXIMUM RATINGS(1)(2) MIN MAX UNIT AuxiliaryDriverIOH continuous –100 mA peak –500 mA AuxiliaryDriverIOL continuous 200 mA peak 1 A InputVoltageRange(INPUT,ENBL) –0.3 20 V PowerDriverIOH continuous –200 mA peak –1 A PowerDriverIOL continuous 400 mA peak 2 A V Supplyvoltage 20 V CC LeadTemperature(Soldering10seconds) 300 °C OperatingJunctionTemperature(3) 150 °C StorageTemperatureRange –65 150 °C (1) ConsultthePackagingSectionattheendofthisdatasheetforthermallimitationsandspecificationsofpackages. (2) Stressesbeyondthoselistedunderabsolutemaximumratingsmaycausepermanentdamagetothedevice.Thesearestressratings only,andfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunderrecommendedoperating conditionsisnotimplied.Exposuretoabsolute-maximum-ratedconditionsforextendedperiodsmayaffectdevicereliability. (3) Unlessotherwiseindicated,voltagesarereferencedtogroundandcurrentsarepositiveinto,negativeoutof,thespecifiedterminals. ELECTRICAL CHARACTERISTICS Unlessotherwisestated,V =15V,ENBL≥2V,R 1=100kΩfromT1toGND,R 2=100kΩfromT2toGND,and−55°C CC T T <T <125°CfortheUC1714andUC1715,–40°C<T <85°CfortheUC2714andUC2715,and0°C<T <70°Cforthe A A A UC3714andUC3715,T =T A J PARAMETER TESTCONDITIONS MIN TYP MAX UNIT Overall V 7 20 V CC I Nominal ENBL=2V 18 24 mA CC Sleepmode ENBL=0.8V 200 300 µA PowerDriver(PWR) Preturn-onPWRoutput,low V =0V,I =10mA,ENBLat 0.3 1.6 V CC OUT 0.8V V PWRoutputlow,sat. INPUT=0.8V,I =40mA 0.3 0.8 PWR OUT V INPUT=0.8V,I =400mA 2.1 2.8 OUT V − PWRoutputhigh,sat. INPUT=2V,I =−20mA 2.1 3 CC OUT V V PWR INPUT=2V,I =−200mA 2.3 3 OUT Risetime C =2200pF 30 60 ns L Falltime C =2200pF 25 60 ns L T1Delay,AUXtoPWR INPUTrisingedge,R 1=10kΩ(1) 20 35 80 T ns INPUTrisingedge,R 1=100kΩ(1) 350 500 700 T PWRPropDelay INPUTfallingedge,50%(2) 35 100 ns AuxiliaryDriver(AUX) V AUXoutputlow,sat. V =2V,I =20mA 0.3 0.8 AUX IN OUT V V =2V,I =200mA 1.8 2.6 IN OUT V – AUXoutputhigh,sat. V =0.8V,I =–10mA 2.1 3 CC IN OUT V V AUX V =0.8V,I =–100mA 2.3 3 IN OUT RiseTime C =1000pF 45 60 ns L (1) T1delayisdefinedfromthe50%pointofthetransitionedgeofAUXtothe10%oftherisingedgeofPWR.T2delayisdefinedfromthe 90%ofthefallingedgeofPWRtothe50%pointofthetransitionedgeofAUX. (2) Propagationdelaytimesaremeasuredfromthe50%pointoftheinputsignaltothe10%pointoftheoutputsignal’stransitionwithno loadonoutputs. 2 SubmitDocumentationFeedback Copyright©1999–2013,TexasInstrumentsIncorporated ProductFolderLinks:UC1714 UC1715 UC2714UC2715 UC3714 UC3715

UC1714, UC1715, UC2714 UC2715, UC3714, UC3715 www.ti.com SLUS170B –FEBRUARY1999–REVISEDMAY2013 ELECTRICAL CHARACTERISTICS (continued) Unlessotherwisestated,V =15V,ENBL≥2V,R 1=100kΩfromT1toGND,R 2=100kΩfromT2toGND,and−55°C CC T T <T <125°CfortheUC1714andUC1715,–40°C<T <85°CfortheUC2714andUC2715,and0°C<T <70°Cforthe A A A UC3714andUC3715,T =T A J PARAMETER TESTCONDITIONS MIN TYP MAX UNIT FallTime C =1000pF 30 60 ns L T2Delay,PWRtoAUX INPUTfallingedge,R 2=10kΩ(1) 20 50 80 T ns INPUTfallingedge,R 2=100kΩ(1) 250 350 550 T AUXPropDelay INPUTrisingedge,50%(2) 35 80 ns Enable(ENBL) InputThreshold 0.8 1.2 2 V I InputCurrent ENBL=15V 1 10 µA IH I InputCurrent ENBL=0V –1 –10 µA IL T1 CurrentLimit T1=0V –1.6 –2 mA NominalVoltageatT1 2.7 3 3.3 V MinimumT1Delay T1=2.5V(1) 40 70 ns T2 CurrentLimit T2=0V –1.2 –2 mA NominalVoltageatT2 2.7 3 3.3 V MinumumT2Delay T2=2.5V(1) 50 100 ns Input(INPUT) InputThreshold 0.8 1.4 2 V I InputCurrent INPUT=15V 1 10 µA IH I InputCurrent INPUT=0V –5 –20 µA IL DEVICE INFORMATION DIL-8,SOIC-8;JorN,DPackages (TOPVIEW) SOIC-16;DPPackage (TOPVIEW) Copyright©1999–2013,TexasInstrumentsIncorporated SubmitDocumentationFeedback 3 ProductFolderLinks:UC1714 UC1715 UC2714UC2715 UC3714 UC3715

UC1714, UC1715, UC2714 UC2715, UC3714, UC3715 SLUS170B –FEBRUARY1999–REVISEDMAY2013 www.ti.com PIN DESCRIPTIONS AUX TheAUXswitchesimmediatelyattherisingedgeofINPUT’butwaitsthroughtheT2delayafterthefalling edgeofINPUTbeforeswitching.AUXiscapableofsourcing0.5Aandsinking1Aofdrivecurrent.See theTimeRelationshipsdiagrambelow(Figure1)forthedifferencesbetweentheUC1714andUC1715for INPUT,MAIN,andAUX.Duringsleepmode,AUXisinactivewithahighimpedance. ENBL TheENBLinputswitchesatTTLlogiclevels(approximately1.2V),andtheinputrangeisfrom0to20V. TheENBLinputplacesthedeviceintosleepmodewhenitisalogicallow.ThecurrentintoVCCduring thesleepmodeistypically220μA. GND Thisisthereferencepinforallinputvoltagesandthereturnpointforalldevicecurrents.GNDcarriesthe fullpeaksinkingcurrentfromtheoutputs.AnytendencyfortheoutputstoringbelowGNDvoltagemust bedampedorclampedsuchthatGNDremainsthemostnegativepotential. INPUT TheinputswitchesatTTLlogiclevels(approximately1.4V)buttheallowablerangeisfrom0to20V, allowingdirectconnectiontomostcommonICPWMcontrolleroutputs.Therisingedgeimmediately switchestheAUXoutput,andinitiatesatimingdelay,T1,beforeswitchingonthePWRoutput.Similarly, theINPUTfallingedgeimmediatelyturnsoffthePWRoutputandinitiatesatimingdelay,T2,before switchingtheAUXoutput. NotethatiftheinputsignalcomesfromacontrollerwithFETdrivecapability,thissignalprovidesanother option.INPUTandPWRprovideadelayonlyattheleadingedgewhileINPUTandAUXprovidethedelay atthetrailingedge. PWR ThePWRoutputwaitsfortheT1delayaftertherisingedgeofINPUTbeforeswitchingon,butswitches offimmediatelyatthefallingedgeofINPUT’(neglectingpropagationdelays).Thisoutputiscapableof sourcing1Aandsinking2Aofpeakgate-drivecurrent.PWRoutputincludesapassive,self-biasedcircuit whichholdsthispinactivelow,whenENBL≤ 0.8VregardlessofthevoltageofVCC. T1 AresistortogroundprogramsthetimedelaybetweentheAUXswitchturnoffandPWRturnon. T2 ThispinfunctionsinthesamewayasT1butcontrolsthetimedelaybetweenPWRturnoffandactivation oftheAUXswitch. T1,T2 Theresistoroneachofthesepinssetsthechargingcurrentoninternaltimingcapacitorstoprovide independenttimecontrol.Thenominalvoltagelevelateachpinis3Vandthecurrentisinternallylimited to1mA.ThetotaldelayfromINPUTtoeachoutputincludesapropagationdelayinadditiontothe programmabletimerbutbecausethepropagationdelaysareapproximatelyequal,therelativetimedelay betweenthetwooutputscanbeassumedtobesolelyafunctionoftheprogrammeddelays.The relationshipofthetimedelayvs.RTisshownintheTYPICALCHARACTERISTICScurves(seeFigure2). Eitherorbothpinsarealternativelyusedforvoltagesensinginlieuofdelayprogramming,whichisdone bypullingthetimerpinsbelowtheirnominalvoltagelevelwhichimmediatelyactivatesthetimeroutput. VCC TheV inputrangeisfrom7to20V.ThispinmustbebypassedwithacapacitortoGNDconsistentwith CC peakloadcurrentdemands. 4 SubmitDocumentationFeedback Copyright©1999–2013,TexasInstrumentsIncorporated ProductFolderLinks:UC1714 UC1715 UC2714UC2715 UC3714 UC3715

UC1714, UC1715, UC2714 UC2715, UC3714, UC3715 www.ti.com SLUS170B –FEBRUARY1999–REVISEDMAY2013 TYPICAL CHARACTERISTICS T1DELAY,T2DELAY vs TIMERELATIONSHIPS R T INPUT PROPAGATION DELAYS PWR OUTPUT T1 DELAY T2 DELAY UC1714 AUX OUTPUT UC1715 AUX OUTPUT (2)T1delayisdefinedfromthe50%pointofthetransitionedgeof AUXtothe10%oftherisingedgeofPWR.T2delayisdefinedfrom the90%ofthefallingedgeofPWRtothe50%pointofthetransition edgeofAUX. Figure1. Figure2. I CC vs I CC SWITCHINGFREQUENCYWITHNOLOADAND50% vs DUTYCYCLER 1=R 2=50k R WITHOPPOSITER =50k T T T T Figure3. Figure4. Copyright©1999–2013,TexasInstrumentsIncorporated SubmitDocumentationFeedback 5 ProductFolderLinks:UC1714 UC1715 UC2714UC2715 UC3714 UC3715

UC1714, UC1715, UC2714 UC2715, UC3714, UC3715 SLUS170B –FEBRUARY1999–REVISEDMAY2013 www.ti.com TYPICAL CHARACTERISTICS (continued) T1DEADBAND T2DEADBAND vs vs TEMPERATUREAUXTOPWR TEMPERATUREPWRTOAUX Figure5. Figure6. 6 SubmitDocumentationFeedback Copyright©1999–2013,TexasInstrumentsIncorporated ProductFolderLinks:UC1714 UC1715 UC2714UC2715 UC3714 UC3715

UC1714, UC1715, UC2714 UC2715, UC3714, UC3715 www.ti.com SLUS170B –FEBRUARY1999–REVISEDMAY2013 TYPICAL APPLICATIONS Figure7. TypicalApplicationWithTimedDelays Figure8. UsingTheTimerInputForZero-VoltageSensing Wake-upoccurswiththefirstpulsewhileturnoffisdeterminedbythe(RTOCTO)timeconstant. Figure9. Self-ActuatedSleepModeWithTheAbsenceOfAnInputPWMSignal Copyright©1999–2013,TexasInstrumentsIncorporated SubmitDocumentationFeedback 7 ProductFolderLinks:UC1714 UC1715 UC2714UC2715 UC3714 UC3715

UC1714, UC1715, UC2714 UC2715, UC3714, UC3715 SLUS170B –FEBRUARY1999–REVISEDMAY2013 www.ti.com Figure10. UsingTheUC1715AsAComplementarySynchronousRectifierSwitchDriverWithN-Channel FETs V islimitedto10VasV risestoapproximately2V . IN CC IN Figure11. SynchronousRectifierApplicationWithAChargePumpToDriveTheHigh-SideN-Channel BuckSwitch WithactiveresetprovidedbytheUC1714drivinganN-channelswitch(Q1)andaP-channelauxiliaryswitch(Q2). Figure12. TypicalForwardConverterTopology 8 SubmitDocumentationFeedback Copyright©1999–2013,TexasInstrumentsIncorporated ProductFolderLinks:UC1714 UC1715 UC2714UC2715 UC3714 UC3715

UC1714, UC1715, UC2714 UC2715, UC3714, UC3715 www.ti.com SLUS170B –FEBRUARY1999–REVISEDMAY2013 Figure13. UsingAnN-ChannelActiveResetSwitchWithAFloatingDriveCommand Copyright©1999–2013,TexasInstrumentsIncorporated SubmitDocumentationFeedback 9 ProductFolderLinks:UC1714 UC1715 UC2714UC2715 UC3714 UC3715

UC1714, UC1715, UC2714 UC2715, UC3714, UC3715 SLUS170B –FEBRUARY1999–REVISEDMAY2013 www.ti.com REVISION HISTORY ChangesfromRevisionA(January2002)toRevisionB Page • AddedTI'sgeneralAbsoluteMaximumRatingstablenotetoendofAbsoluteMaximumtable .......................................... 2 • ChangedENBL≥0.8VtoENBL≤0.8VinPWRpindescription.......................................................................................... 4 • ChangedlayoutfromUnitrodeProductsdatasheettoTIdatasheet .................................................................................... 8 10 SubmitDocumentationFeedback Copyright©1999–2013,TexasInstrumentsIncorporated ProductFolderLinks:UC1714 UC1715 UC2714UC2715 UC3714 UC3715

PACKAGE OPTION ADDENDUM www.ti.com 6-Feb-2020 PACKAGING INFORMATION Orderable Device Status Package Type Package Pins Package Eco Plan Lead/Ball Finish MSL Peak Temp Op Temp (°C) Device Marking Samples (1) Drawing Qty (2) (6) (3) (4/5) UC2714D ACTIVE SOIC D 8 75 Green (RoHS NIPDAU Level-2-250C-1 YEAR -40 to 85 UC2714D & no Sb/Br) UC2714DG4 ACTIVE SOIC D 8 75 Green (RoHS NIPDAU Level-2-250C-1 YEAR -40 to 85 UC2714D & no Sb/Br) UC2714DTR ACTIVE SOIC D 8 2500 Green (RoHS NIPDAU Level-2-250C-1 YEAR -40 to 85 UC2714D & no Sb/Br) UC2715D ACTIVE SOIC D 8 75 Green (RoHS NIPDAU Level-2-250C-1 YEAR -40 to 85 UC2715D & no Sb/Br) UC2715DTR ACTIVE SOIC D 8 2500 Green (RoHS NIPDAU Level-2-260C-1 YEAR -40 to 85 UC2715D & no Sb/Br) UC3714D ACTIVE SOIC D 8 75 Green (RoHS NIPDAU Level-2-250C-1 YEAR 0 to 70 UC3714D & no Sb/Br) UC3715D ACTIVE SOIC D 8 75 Green (RoHS NIPDAU Level-2-260C-1 YEAR 0 to 70 UC3715D & no Sb/Br) UC3715DG4 ACTIVE SOIC D 8 75 Green (RoHS NIPDAU Level-2-260C-1 YEAR 0 to 70 UC3715D & no Sb/Br) UC3715DTR ACTIVE SOIC D 8 2500 Green (RoHS NIPDAU Level-2-250C-1 YEAR 0 to 70 UC3715D & no Sb/Br) (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may reference these types of products as "Pb-Free". RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption. Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of <=1000ppm threshold. Antimony trioxide based flame retardants must also meet the <=1000ppm threshold requirement. (3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Addendum-Page 1

PACKAGE OPTION ADDENDUM www.ti.com 6-Feb-2020 (4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device. (5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation of the previous line and the two combined represent the entire Device Marking for that device. (6) Lead/Ball Finish - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead/Ball Finish values may wrap to two lines if the finish value exceeds the maximum column width. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. Addendum-Page 2

PACKAGE MATERIALS INFORMATION www.ti.com 10-Aug-2016 TAPE AND REEL INFORMATION *Alldimensionsarenominal Device Package Package Pins SPQ Reel Reel A0 B0 K0 P1 W Pin1 Type Drawing Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant (mm) W1(mm) UC2714DTR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 UC2715DTR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 UC3715DTR SOIC D 8 2500 330.0 12.4 6.4 5.2 2.1 8.0 12.0 Q1 PackMaterials-Page1

PACKAGE MATERIALS INFORMATION www.ti.com 10-Aug-2016 *Alldimensionsarenominal Device PackageType PackageDrawing Pins SPQ Length(mm) Width(mm) Height(mm) UC2714DTR SOIC D 8 2500 367.0 367.0 35.0 UC2715DTR SOIC D 8 2500 367.0 367.0 35.0 UC3715DTR SOIC D 8 2500 367.0 367.0 35.0 PackMaterials-Page2

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