SY7065A内置5A电流MOS高效率同步升压芯片

1、AN_SY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly #深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生AN_SY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly 深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生GeneralDescriptionSY7065/SY7065Aisahighefficiencysynchionousboostregulatorthatcon

2、vertsdownto1.8Vinputandupto5.5Voutputvoltage.ItadoptsNMOSforthemainswitchandPMOSforthesynchronousswitch.ItcandisconnecttheoutputfrominputduringtheshutdownmodeOrderingInformationSY7065TemperatureCodePackageCodeOptionalSpecCodeOrderingNumberPackagetypeNoteSY7065QMCQFN2X2-10SY7065AQMCQFN2X2-10Temperatu

3、reRange:-40Cto85CFeatures1.8VMinimuminputvoltageAdjustableoutputvoltagefrom2.5Vto5.5V5ApeakcurrentlimitInputundervoltagelockoutLoaddisconnectduringshutdownOutputovervoltageprotectionInputbatteryvoltagemonitorAutomaticoutputdischargeatshutdown:oSY7065:Autooutputdischargefunction0SY7065A:Nooutputdisch

4、argefunctionLowRds(on)(mainswitch/synchronousswitch)at5.0Voutput:20/40mQCompactpackage:QFN2x2-10ApplicationsAllSingleCellLiorDualCellBatteryOperatedProductsasMP3Player,PDAs,andOtherPortableEquipmentSHERGYApplicationNote:AN_SY7065/SY7065A1.8VMinimumInputand5.5VMaximumOutput5APeakCurrentSynchronousBoo

5、stwithOutputDisconnectAN_SY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly #深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生AN_SY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly #深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生AN_SY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCus

6、tomerUseOnly #深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生AN_SY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly #深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生TypicalApplicationsFigure1SchematicDiagram/C/9、J、1、Vg.OVMM.OVViM-3.3V.Von-5.DVV1r-4.W,Vojt-5.DVTOG909694608B餡B4aa1.02.03.04.D5.0LoadCurren

7、t(A)Efficiencyvs.LoadCurrentFigure2EfficiencyFigureAN_SY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly 深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生AN_SY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly #深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生ANSY7065/SY7065APinout(topview

8、)AN_SY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly #深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生AN_SY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly #深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生AN_SY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly #深圳昱灿电子专

9、业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生AN_SY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly 深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生AbsoluteMaximumRatings(Note1)(QFN2X2-10)Topmark:RCxyzforSY7065(Devicecode:RC.,x=yearcode,尸weekcode,z=lotnumbercode)VLjcyzforSY7065A(Devicecode:VL,x=yearcode.y=w

10、eekcode.z=/ofnumbercode)NameQFN2X2-10DescriptionPVOUT1Poweroutputpin.DecouplethispintoGNDpinwithatleast22uFceramiccap.SVOUT6Signaloutputpin.DecouplethispintoGNDpinwithatleast4.7uFceramiccapfornoiseimmunityconsideration.LX2InductornodeConnectaninductorbetweenINpinandLXpin.PGND3Powergroundpin.SGND4Sig

11、nalgroundpin.IN5Signalinputpin.EN7Enablepin.InternalintegratedwithIMohmpulldownresistor.LBI8Lowbatterycomparatorinput.FB10Feedbackpin.ConnectaresistorR1betweenOUTandFB,andaresistorR2betweenFBandGNDtoprogramtheoutputvoltage.VOut=1-2V*(Ri/R2+1)LBO9Lowbatterycomparatoroutput.(opendrain)ENVout+0.3VTOC o

12、 1-5 h zOtherPins6VPowerDissipation,PDTA=25CQFN2x2-102.5WPackageThermalResistance(Note2)9ja50C/W0jc-10C/WJunctionTemperatureRange150CLeadTemperature(Soldering,10sec.)260CStorageTemperatureRange-65Cto150CRecommendedOperatingConditions(Note3)IN1.8Vto5.25VPVOUT,SVOUT2.5Vto5.5VEN0VtoVOut+0.3VAllotherpin

13、s0-5.5VJunctionTemperatureRange40Cto125CAmbientTemperatureRange-40Cto85CSHERGYANSY7065/SY7065AElectricalCharacteristics(Vin=2.4V,Vout=5V,IouT=500mA,Ta=25Cunessotheiwisespecified)ParameterSymbolTestConditionsMinTypMaxUnitInputVoltageVINL85.25VOutputVoltageRangeVOUT2.55.5VQuiescentCunentV(nIQIo=0A,Ven

14、=Vin=18V,10mAVoutVOut=5.0V27rAShutdownCurrentIsHDNVEN=0V,VW.4V01yALinearchargecurrentIcHARGEVoutSIV1.2A1VVOUt90%Vin1.0Soft-starttimeTss1msInputVinUVLOthresholdVuvlo1.78VVinUVLOhysteresisVhys0.1VENRisingThresholdVenh1.2VENFallingThresholdVenl0.4VLBIVoltageThresholdVLBi1.1761.21.224VLBIInputHysteresis

15、VlbIhys20mVLowSideMainFETRonRdsionhVout=5.0V20mQSynclironousFETRonRdSON)2VOut=5.0V40mQMainFETCurrentLimitIlimi5.0ASwitchingFrequencyfsw500kHzFeedbackReferenceVoltageVref1.1821.21.218VOutputovervoltageprotectionVovp6VMinimumontimeTonmin100nsMinimumofftimeToffmin100nsMaxontimeTonmax2USThermalShutdownT

16、emperatureTsd150CThermalShutdownhysteresisThys20COutputDischargeResistorRdsc80(2Note1:StressesbeyondtheAbsoluteMaximumRatings51maycausepennanentdamagetothedeviceThesearestressratingsonly.Functionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedintheoperationalsectionsofthespecifi

17、cationisnotimpliedExposuretoabsolutemaximumratingconditionsmayaffectdevicereliability.Note2:OJAismeasuredinthenaturalconvectionatTA=25Conafour-layerSilergyEvaluationBoard.Note3:ThedeviceisnotguaranteedtofunctionoutsideitsoperatingconditionsANSY7065/SY7065AAN_SY7065/ARev.0.9ASilergyCorp.Confidential-

18、PreparedforCustomerUseOnly 深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生ANSY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly #深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生SUERGY_BlockDiagramANSY7065/SY7065ALXPGNDINPVOUTANSY7065/SY7065AAN_SY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustome

19、rUseOnly #深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生ANSY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly 深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生ANSY7065/SY7065AAN_SY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly #深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生ANSY7065/ARev.0.9A

20、SilergyCorp.Confidential-PreparedforCustomerUseOnly #深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生TypicalPerformanceCharacteristics(forSY7065)ANSY7065/SY7065AAN_SY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly 深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生ANSY7065/ARev.0.9ASilergyCorp.Confidenti

21、al-PreparedforCustomerUseOnly #深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生一f;/*、I、Vin-2.0V.Vwt-5.0VVi=13V,Vcut=5.0VViJJV.VoS.OVIEfficiencyvs.LoadCurrent0.01.02.Q3.04.05.QSteadyState(VW3.3V,Vout5.0V.IumdOA)1A/divTime(4ps/div)LoadCurrent(A)SteadyState(Vr(=3.3Vou卢5.0Vla=0.1A)训UM|rSteadyState1A/divTime(10ps/

22、div)Time(1pa/div)LoadTransientTime(1ms/div)ShortCircuit(ViM-3.3V.Vcur-5.0V.Ilo0.3AtoShortCircuit)Time(1ms/div)ANSY7065/SY7065AAN_SY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly #深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生ANSY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUs

23、eOnly 深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生ANSY7065/SY7065AANSY7065/SY7065AAN_SY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly #深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生ANSY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly #深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生ANSY7

24、065/SY7065AAN_SY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly 深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生ANSY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly #深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生StartupfromEnable小沪3.3匕阪卢5.0V,Iqo=2.4A)EN2V/divVout5V/divLX5V/drv5A/dlv

25、Time(1ms/div)ShutdownfromEnable(Vw=3.3V,Vout=5.0Vlgb24A)Time(1ms/div)ANSY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly 深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生AN_SY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly 深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生ANSY7065/SY706

26、5AApplicationsInformationBecauseofthehighintegrationforSY7065/A,onlyinputcapacitorCin,outputcapacitorCout,inductorLandfeedbackresistors（R】andR2）needtobeselectedforthetargetedap讥icationsspecifications.FeedbackresistordividersR1andR2:ChooseRiandR2toprogramtheproperoutputvoltageTominimizethepowerconsum

27、ptionunderlightloads,itisdesirabletochooselargeresistancevaluesforbothR】andR2.AvalueofbetweenlOkHand1MQisrecommendedforbothresistors.IfVOutis5.0V,R|=470k2ischosen,usingfollowingequation,thenR2canbecalculatedtobe148.4kn：InDufcapacitorC旦；Theinputcapacitorisselectedtohandletheinputripplecuirentrequirem

28、ents.Forthebestperfbimance,itisrecommendedtouseX5Rorbettergradeceramiccapacitorwith6.3Vratingandgieaterthan22uFcapacitanceLiIonbatteryhofplugconsideration:Inthemassproductionstage,theLi-IonBatterywillalwayshotpluginbetweenICINandGNDpin.ThehotplugmayleadtolargevoltagespikeandevenleadtoICEOSfail.Toavo

29、idthispotentialrisk,lpcs22uFceramiccapserialwith0.1Hresisterisrecommendedtoabsorbtheinputvoltagespike.Withtherecommendedinputabsorbsolution,thevoltagespikecanbereducedfrom6.13Vto5.29V.ANSY7065/SY7065AInductorLSelection:Therearcseveralconsiderationsinchoosingthisinductor.Choosetheinductancetoprovidet

30、hedesiredripplecurrent.Itissuggestedtochoosetheripplecurrenttobeabout40%ofthemaximumoutputcurrentTheinductanceiscalculatedas:耳WXloUT.MAXX4%ANSY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly #深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生AN_SY7065/ARev.0.9ASilergyCorp.Confidential-Prepared

31、forCustomerUseOnly #深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生ANSY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly #深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生AN_SY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly 深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生whereFswistheswitchingfr

32、equencyandIoutjviaxisthemaximumloadcunent.TheSY7065/AregulatorICisquitetolerantofdifferentripplecurrentamplitudeConsequently,thefinalchoiceofinductancecanbeslightlyoffthecalculationvaluewithoutsignificantlyimpactingtheperfonnanceThesaturationcurrentratingoftheinductormustbeselectedtobegreaterthanthe

33、peakinductorcurrentunderfullloadconditionsUata(nANSY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly #深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生AN_SY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly #深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生ANSY7065/ARev.0.9ASilergyCorp.Con

34、fidential-PreparedforCustomerUseOnly 深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生AN_SY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly 深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生TheDCRoftheinductorandthecorelossattheswitchingfrequencymustbelowenoughtoachievethedesiredefficiencyrequirement.Itis

35、desirabletochooseaninductorwithDCR50mohmtoachieveagoodoverallefficiencyInductorVOutputCapacitor:Theoutputcapacitorisselectedtohandletheoutputripplenoiserequirements.Bothsteadystaterippleandtransientrequirementsmustbetakenintoconsiderationwhenselectingthiscapacitor.Careshouldbetakentominimizetheloopa

36、reaformedbyCour,andOUT/GNDpins.ItsrecommendedtouseaX5Rorbettergradeceramiccapacitorwith10Vratingandgreatthan22uFcapacitancetodecouplethehighfrequencycuiTent.Andalsoatantalumcapacitorwith16VratingandgreatthanlOOuFcapacitanceisrecommendedforthestabilityconsideration.Allcontinuousmodeboostconvertershav

37、earighthalfplanezero(RHPZ)duetotheinductorbeingremovedfromtheoutputduringcharging.Inaconverterwithcurrentmodecontrol,innercurrentfeedbackloopallowstheswitch,inductorandmodulatortobelumpedtogetherintoasmallsignalvariablecunentsource,shownasfollow(4)ANSY7065/SY7065AWhere(RESR+RjxCo(7)Astheequation4sho

38、ws,BoostconvertwithcurrentmodecontroltransferfunctionisconsistofoneESRzero,onerighthalfplanezeroandonepoleRighthalfplanezerobrings20dB/decadcgainincrease,90degreesphasedrop.SothebandwidthofboostconverterMUSTbelowerthan/jHpZ.Asshowninequation7,righthalfplanezeroisdependonRL,LanddutycycleLargerinducto

39、rleadtolowcr/jpz,sobandwidthshouldbedesignedlowerthan/rhpz-SomelowprofileapplicationmayprefertousetheceramiccapacitorsolutionandsomelowcostapplicationmayusetheElectrolyticcaptoreducetheBOMcost.Belowisselectiontablebasedondiflerentinductanceandoutputcapacitor.InductanceVs.OutputCapacitorSelectionTabl

40、eInductanceLowprofilecapacitorapplicationLowcostcapacitorapplicationPartNumberL(uH)PartNumberCour(uF)Cout(uF)SPM6530T-1R0M1.0C3216X5R1A226M22uF/10Vx3pcs22uF/10V+100uF(E-cap)SPM6530T-1R5M1.5C3216X5R1A226M22uF/10Vx4pcs22uF/10V+100uF(E-cap)SPM6530T-2R2M2.2C3216X5R1A226M22uF/10Vx5pcs22uF/10V+200uF(E-cap

41、)EnableOperationPullingtheENpinlow(1.2V)willturnontheICagainLowBatteryDetectorFunction-LBI/LBOThelow-batterydetectorfunctionisusedtomonitorthebatteryvoltageandtogenerateanenorflagwhenthebatteryvoltagedropsbelowauser-setthresholdvoltageThefunctionisactiveonlywhenthedeviceisenabledWhenthedeviceisdisab

42、led,LBOstaysathighimpedance.Thedetectionthresholdis1.2VatLBI.Duringnormaloperation,LBOstaysathighimpedancewhenthevoltageappliedatLBIisabovethethresholdItisactivelowwhenthevoltageatLBIgoesbelow1.2V.Thebatteryvoltage,atwhichthedetectioncircuitswitches,canbeprogrammedwitharesistivedividerconnectedtoLBI

43、pin.Theresistivedividerscalesdownthebatteryvoltagetoavoltagelevelof1.2V,whichisthencomparedtoLBIthresholdvoltageTheLBIpinhasabuilt-inhysteresisof20mV.Ifthelow-batteiydetectioncircuitisnotused,theLBIpinshouldbeconnectedtoGND(ortoVBAT)andtheLBOpincanbeleftunconnected.DonotlettheLBIpinfloatR3andR4arede

44、signedtoprogramtheproperlowbatterythresholdvoltageThevoltageacrossR4isequaltotheLBIvoltagethresholdthatisgeneratedon-chip,whichhasavalueof12VThevalueofresistorR3,dependingonthedesiredminimumbatteryvoltageVBAT,canbecalculatedas:ANSY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly #深圳

45、昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生ANSY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly #深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生AN_SY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly 深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生VBAT-1.2V1.2VANSY7065/SY7065AANSY7065/ARev.0.9

46、ASilergyCorp.Confidential-PreparedforCustomerUseOnly #深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生ANSY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly #深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生AN_SY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly #深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电

47、池充电等联系人：李先生ANSY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly 深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生ANSY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly 深圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生AN_SY7065/ARev.0.9ASilergyCorp.Confidential-PreparedforCustomerUseOnly #深

48、圳昱灿电子专业电源管理芯片DCDC升压降压LD0锂电池充电等联系人：李先生Theoutputofthelowbatterymonitorisasimpleopen-drainoutputthatgoesactivelowifthededicatedbatteryvoltagedropsbelowtheprogrammedthresholdvoltageonLBI.TheoutputrequiresapullupresistorwitharecommendedvalueoflOOkH.ThemaximumvoltagewhichisusedtopulluptheLBOoutputsshouldn

49、otexceedtheoutputvoltageoftheDC/DCconverter.Ifnotused,theLBOpincanbeleftfloatingortiedtoGND.LayoutDesignConsideration:Forthebestefficiencyandminimumnoiseproblems,weshouldplacethefollowingcomponentsclosetotheIC:Cour,L,R|andR2ItisdesirabletomaximizethePCBcopperareaconnectingtoPGNDpintoachievethebestthermalandnoiseperformanceIftheboardspaceallowed,agroundplaneishighlyrecommended.CourmustbeclosewithPinsPVOUTandPGND.TheloopareafoiinedbyCoutandGNDmustbeminimized.Tominimizetheoutputdecouplelooparea,LXt