設(shè)計(jì)參考源碼手冊(cè)1746個(gè)zhcs

PMICFOREInk?Vizplex?電子紙顯查詢樣品:

ZHCS462–JULYEInk?Vizplex?

集成型10Ω、3.3V電源開關(guān)（用于關(guān)斷至E- ––10°C至85°C溫度范支持9.7英寸及更大的顯示屏尺 –從0°C至50°C間的±1°C準(zhǔn)確3V至6V輸入電壓范 I2C串 –從地址 –48-引腳,0.5mm螺距LDO1:15V,120mA 7mmx7mmx0.9mm(QFN)LDO2:–15V,120mAVPOS-VNEG=±50CP1:22V,10mACP2:–20V,12mA,VCOM驅(qū)動(dòng)器用于準(zhǔn)確顯示屏-0V至-5.111.5%精度(±109位控制(10-mV額定步長

EInk?Vizplex?EPDE-Book（電子）閱讀EPSON?S1D13522(ISIS)EPSON?S1D13521（寬幅印刷品）PRODUCTTPS65186是一個(gè)單電源，設(shè)計(jì)目的是為EInk?Vizplex?滿足便攜式閱讀器應(yīng)用的現(xiàn)實(shí)需要，并支持高達(dá)9.7英寸及更大尺寸的顯示屏。兩個(gè)高效率DC/DC升壓型轉(zhuǎn)換器產(chǎn)生了±16V電壓軌，由兩個(gè)充電泵將這些電壓軌升壓至22V和―20V，以提供柵極驅(qū)動(dòng)器電源給Vizplex?顯示屏。兩個(gè)LDO負(fù)責(zé)產(chǎn)生±15V源極驅(qū)動(dòng)器電源，可支持高達(dá)120mA的輸出電流。所有電壓可通過I2C接口進(jìn)行調(diào)節(jié)，旨在適應(yīng)特定的顯示屏要求。PRODUCT準(zhǔn)確背板偏壓由一個(gè)線性放大器提供，這個(gè)線性放大器能通過串口的9位控制器在0V到-5.11V間進(jìn)行調(diào)節(jié)并能根據(jù)顯示屏狀態(tài)發(fā)送或者接收電流。TPS65186支持自動(dòng)控制面板反沖電壓測(cè)量，這樣可以消除生產(chǎn)線上手動(dòng)VCOM校準(zhǔn)的需要。測(cè)量結(jié)果可以被在非易失性器中成為新VCOM加電默認(rèn)值。TPS封裝方式為-引腳7x7mm20.5-mm螺距QFNPleasebeawarethatanimportantnoticeconcerningavailability,standardwarranty,anduseincriticalapplicationsofTexasInstrumentssemiconductorproductsanddierstheretoappearsattheendofthisdatasheet.OMAPisatrademarkofTexasInstruments.VizplexisatrademarkofEInkEInkisaregisteredtrademarkofEInkEPSONisaregisteredtrademarkofSeikoEpsonPRODUCTPREVIEWinformationconcernsproductsin Copyright?2011,TexasInstrumentsformativeordesignphaseofdevelopment.Characteristicdataotherspecificationsaredesigngoals.TexasInstruments EnglishDataSheet:therighttochangeordiscontinuetheseproductswithoutThisintegratedcircuitcanbedamagedbyESD.TexasInstruments mendsthatallintegratedcircuitsbehandledwithappropriateprecautions.Failuretoobserveproperhandlingandinstallationprocedurescancausedamage.ESDdamagecanrangefromsubtleperformancedegradationtocompletedevicefailure.Precisionintegratedcircuitsmaybemoresusceptibletodamagebecauseverysmallparametricchangescouldcausethedevicenottomeetitspublishedspecifications.FUNCTIONALBLOCK

PRODUCTPRODUCT

ORDERINGORDERABLEPARTTOP-SIDE-10°CtoForthemostcurrentpackageandorderinginformation,seethePackageOptionAddendumattheendofthis,orseetheTIwebsiteatPackagedrawings,thermaldata,andsymbolizationareavailable DEVICE36–36–35–34–33–32–31–30–29–28–27–26–25–VDDH_INN/CN/CVB_SWPGND1VBVPOS_INVPOSVIN3P3V3P3TSAGND2

242322212019181716151413PRODUCTPRODUCTVREF–VREF–nINT–VNEG–VNEG_IN–WAKEUP–DGND–INT_LDO–AGND1–N/C–VIN–N/C–VCOM_CTRL–1OFilterpinfor2.25-Vinternalreferenceto2OOpendraininterruptpin(active3ONegativesupplyoutputpinforpanelsource4IInputpinforLDO25IWakeuppin(activehigh).Pullthispinhightowakeupfromsleepmode.ICacceptsI2CcommandsafterWAKEUPpinispulledhighbutpowerrailsremaindisableduntilPWRUPpinispulledhigh.6Digitalground.Connecttoground7OFilterpinfor2.7-Vinternal8oggroundforgeneralogTherewillbe0-ns,93.75-μs,62.52-μsofdeglitchforPWRx,WAKEUP,andVCOM_CTRL,PRODUCTPRODUCT9NotinternallyIInputpowersupplytogeneralNotinternallyIVCOMenable.PullthispinhightoenabletheVCOMamplifier.WhenpinispulledlowandVNisenabled,VCOMdischargeisenabled.NotinternallyIFilterpinforpanelcommon-voltageNotinternallyIInternalsupplyinputpintoVCOMbuffer.ConnecttotheoutputofISerialinterface(I2C)clockSerialinterface(I2C)dataNotinternallyNotinternallyNotinternallyIPower-uppin.Pullthispinhightopower-upalloutputDiesubstrate.ConnecttoVN(-16V)withshort,widetrace.Widecoppertracewillimproveheatdissipation.OOpendrainpowergoodoutputpin.Pinispulledlowwhenoneormorerailsaredisabledornotinregulation.DCDC1,DCDC2,andVCOMhavenoeffectonthispin.OInvertingbuck-boostconverterswitchoutNotinternallyIInputpowersupplytoinvertingbuck-boostconverterIFeedbackpinforinvertingbuck-boostconverter(DCDC2)andsupplyforVNEGLDOandVEEchargepumpIInputsupplypinfornegativechargepump(CP2)ODriveroutputpinfornegativechargepumpIBasevoltageoutputpinfornegativechargepumpIFeedbackpinfornegativechargepumpPowergroundforCP1(VDDH)andCP2(VEE)chargeIFeedbackpinforpositivechargepumpOBasevoltageoutputpinforpositivechargepumpODriveroutputpinforpositivechargepumpIInputsupplypinforpositivechargepumpNotinternallyNotinternallyOBoostconverterswitchoutPowergroundforIFeedbackpinforboostconverter(DCDC1)andsupplyforVPOSLDOandVDDHchargeIInputpinforLDO1OPositivesupplyoutputpinforpanelsourceIInputpinto3.3-VpowerOOutputpinof3.3-VpowerIThermistorinputpin.Connecta10kNTCthermistoranda43klinearizationresistorbetweenthispinandAGND.ReferencepointtoexternalthermistorandlinearizationPowerPad,internallyconnectedtoPBKG.ConnecttoVNwithshort,widetrace.Widecoppertracewillimproveheatdissipation.PowerPadmustnotbeconnectedtoground.PRODUCTABSOLUTEUMPRODUCToveroperating-airtemperaturerange(unlessotherwisenoted)InputvoltagerangeatVIN(2),VIN_P,–0.3toVGroundpinstosystem–0.3toVVoltagerangeatSDA,SCL,WAKEUP,PWRUP,VCOM_CTRL,VDDH_FB,VEE_FB,PWR_GOOD,nINT–0.3toVVoltageonVB,VB_SW,VPOS_IN,–0.3toVVoltageonVN,VEE_IN,VCOM_PWR,–20toVVoltagefromVIN_Pto–0.3toVPeakoutputInternallyContinuoustotalpower2W Junction-to-ambient Operatingjunction-10to Operatingambient-10to Storage-65toESD(HBM)HumanbodyV(CDM)ChargeddeviceStressesbeyondthoselistedunderAbsoluteumRatingsmaycausepermanentdamagetothedevice.Thesearestressratingsonly,andfunctionaloperationofthedeviceattheseoranyotherconditionsbeyondthoseindicatedunder mendedOperatingConditionsisnotimplied.Exposuretoabsolute umratedconditionsforextendedperiodsmayaffectdevicereliability.AllvoltagevaluesarewithrespecttonetworkgroundEstimatedwhenmountedonhighKJEDECboardperJESD51-7withthicknessof1.6mm,4layers,sizeof76.2mmX114.3mm,and2oz.copperfortopandbottom ne.ActualthermalimpedancewilldependonPCBusedintheapplication.Itis mendedthatcopper neinpropersizeonboardbeincontactwithdiethermalpadtodissipateheatefficiently.ThermalpadiselectricallyconnectedtoPBKG,whichissupposedtobetiedtotheoutputofbuck-boostconverter.Thuswidecoppertraceinthebuck-boostoutputwillhelpheatdissipatedefficiently.MENDEDOPERATINGoveroperating-airtemperaturerange(unlessotherwiseInputvoltagerangeatVIN,VIN_P,36VVoltagerangeatSDA,SCL,WAKEUP,PWRUP,VCOM_CTRL,VDDH_FB,VEE_FB,PWR_GOOD,nINT0VOperatingambienttemperatureOperatingjunctiontemperaturePRODUCTMENDEDEXTERNALPRODUCTPART4.74mmx4mmx1.654.74mmx4mmx1.8TaiyoVLS252015ET-2.22mmx2.5mmx1.52.24mmx4mmx1.2Taiyo4.7μF,25V,4.7μF,50V,AllotherX5RorSOD-SOD-ON-SOT-10ELECTRICALVIN=3.7V,TA=–10°Cto85oC,TypicalvaluesareatTA=25oC(unlessotherwiseTESTINPUTInputvoltage36VUndervoltagelockoutVNVUndervoltagelockoutVININPUTOperatingquiescentcurrentintoDeviceswitching,noOperatingquiescentcurrentintoDeviceinstandbyShutdownDeviceinsleepSInternalVCNominaloutputCapacitortolerance1InternalVNominaloutputCapacitortoleranceDCDC1(POSITIVEBOOSTInputvoltage36VPowergoodFractionofnominaloutput%Powergoodtime-NottestedinOutputvoltageVDCset-%OutputMOSFETVIN=3.7ILSwitchcurrentASwitchcurrent-%Switching1NominaloutputCapacitortolerance1OutputcapacitorContactfactoryfor1-A,2-A,or2.5-AELECTRICALCHARACTERISTICSELECTRICALCHARACTERISTICS)VIN=3.7V,TA=–10°Cto85oC,TypicalvaluesareatTA=25oC(unlessotherwiseTESTDCDC2(INVERTINGBUCK-BOOSTInputvoltage36VPowergoodFractionofnominaloutput%Powergoodtime-NottestedinOutputvoltage-VDCset-%OutputMOSFETVIN=3.7ILSwitchcurrentASwitchcurrent-%NominaloutputCapacitortolerance1CapacitorLDO1InputvoltageVPowergoodFractionofnominaloutput%Powergoodtime-NottestedinOutputvoltagesetVIN=16V,VSET[2:0]=0x3hto0x6hVOutputvoltagesetVIN=16OutputVSET=15V,ILOAD=20-1%DropoutILOAD=120Loadregulation–ILOAD=10%to1%LoadcurrentILOutputcurrentNominaloutputCapacitortolerance1LDO2VNEG_Inputvoltage-VPowergoodFractionofnominaloutput%Powergoodtime-NottestedinOutputvoltagesetVN=–16VVSET[2:0]=0x3hto0x6hVOutputvoltagesetVN=–16OutputVSET=–15V,ILOAD=–20-1%DropoutILOAD=120Loadregulation–ILOAD=10%to90%of1%LoadcurrentILOutputcurrentNominaloutputCapacitortolerance1PRODUCTContactfactoryfor1-A,2-A,or2.5-APRODUCTPRODUCTELECTRICALCHARACTERISTICS(PRODUCTVIN=3.7V,TA=–10°Cto85oC,TypicalvaluesareatTA=25oC(unlessotherwiseTESTLD01(POS)ANDLDO2(VNEG)VDDifferencebetweenVPOSandVSET=±15ILOAD=±20mA,0°Cto-VCOMDriveAllowedoperatingOutsidethisrangeVCOMisshutdownandVCOMFinterruptisset-1VVCOM[8:0]=(-1.25V),VIN=3.4Vto4.2V,no-%VCOM[8:0]=(-1.25V),VIN=3.0Vto6.0V,no-Outputvoltage-0VMaxnumberofEEPROMVCOMOutputVCOM_CTRL=high,HiZ=ΩRInputimpedance,HiZHiZ=NominaloutputCapacitortoleranceCP1(VDDH)CHARGEVDDH_InputvoltageVPowergoodFractionofnominaloutput%Powergoodtime-NottestedinFeedbackVILOAD=2-2%OutputvoltageVSET=22V,ILOAD=2VLoadcurrentSwitchingDriverOutput1CP2(VEE)NEGATIVECHARGEVEE_Inputvoltage--VPowergoodFractionofnominaloutput%Powergoodtime-NottestedinFeedback-VILOAD=2-2%OutputvoltageVSET=–20V,ILOAD=3VLoadcurrentSwitchingDriverNominaloutputCapacitortolerance1ELECTRICALCHARACTERISTICSELECTRICALCHARACTERISTICS)VIN=3.7V,TA=–10°Cto85oC,TypicalvaluesareatTA=25oC(unlessotherwiseTESTVIN3P3TOV3P3MOSFETONVIN3P3=3.3V,ID=10Overfulltemperature ΩVIN3P3=2.7V,ID=10Overfulltemperature DischargeimpedancetoV3P3EN=ΩTHERMISTORTemperaturetovoltageNottestedin-Temperature=VTemphottripvoltage(T=TEMP_HOT_SET=VTemphotescapevoltage(T=TEMP_COOL_SET=VuminputVInternalpullupExternallinearizationADCNottestedinproduction,1ADCconversionNottestedinNottestedin-1LOGICLEVELSANDTIMINGCHARTERISTICS(SCL,SDA,nINT,PWR_GOOD,OutputlowthresholdIO=3mA,sinkcurrentVInputlowthresholdVInputhighthresholdVInputbiasVIO=1.81Deglitchtime,WAKEUPNottestedinDeglitchtime,PWRUPNottestedinSCLclockI2Cslave7-bitOscillator9FrequencyTA=–40°Cto-%THERMALThermaltripThermalPRODUCT10-kΩMurataNCP18XH103F03RBthermistor(1%)inparallelwithalinearizationresistor(43kΩ,1%)areusedatTSpinforPRODUCTContactfactoryforalternateaddressofPRODUCTTYPICALPRODUCTDEFAULTPOWER-DOWNDEFAULTPOWER-UP (1-kΩExternalDischargeResistoronEachFigure FigureINRUSHCURRENT@VIN=3.7V,CIN=100 INRUSHCURRENT@VIN=5V,CIN=100Figure FigureSWITCHINGWAVEFORMS, SWITCHINGWAVEFORMS,VIN=3V,RLOAD,VPOS=330Ω,RLOAD,VNEG=330 VIN=3V,RLOAD,VPOS=330Ω,RLOAD,VNEG=330NoLoadonVDDH, NoLoadonVDDH,Figure FigureTYPICALCHARACTERISTICSTYPICALCHARACTERISTICS)SWITCHINGWAVEFORMS, SWITCHINGWAVEFORMS,VIN=3.7V,RLOAD,VPOS=330Ω,RLOAD,VNEG=330 VIN=3.7V,RLOAD,VPOS=330Ω,RLOAD,VNEG=330NoLoadonVDDH, NoLoadonVDDH,Figure FigureSWITCHINGWAVEFORMS, SWITCHINGWAVEFORMS,VIN=5V,RLOAD,VPOS=330Ω,RLOAD,VNEG=330 VIN=5V,RLOAD,VPOS=330Ω,RLOAD,VNEG=330NoLoadonVDDH, NoLoadonVDDH,Figure FigureVNDCDCEFFICIENCY,T= VBDCDCEFFICIENCY,T=VIN=3.VIN=3.VIN= OutputCurrent[m

OutputCurrent[mPRODUCTFigurePRODUCTTYPICALCHARACTERISTICS(VEECHARGEPUMPEFFICIENCY,T= VDDHCHARGEPUMPEFFICIENCY,T=VIN=3.VIN=3. 0 OutputCurrentFigure

OutputCurrentFigure3p3VSWITCHIMPEDANCE VIN=3.7V,ILOAD,V3p3=10mA VIN=3.7VIPOS=IPOS=INEIPOSsweep,INEG=15mAIPOS=15mA,INEG4R[],(VIN3p3-R[],(VIN3p3-2 10 -1-2 -3-4 -5

1501Current[mFigure FigureVCOMINTEGRATEDNON-LINEARITY VIN=3.7V,RLOAD,VCOM=1kΩ VIN=3.7V,RLOAD,VCOM=1kΩ 032 0 - -0 -0- 128192256320384448VCOM

64128192256320384448VCOMPRODUCTFigurePRODUCTTYPICALCHARACTERISTICSTYPICALCHARACTERISTICS)KICKBACKVOLTAGEMEASUREMENTTIMINGKICKBACKVOLTAGEMEASUREMENT VIN=3.7V;AVG[1:0]=00(SingleVIN=3.7 TimefromACQBitSettoACQCInterrupt210

640128019202560320038404480512dKickbackVoltage[mPRODUCTPRODUCTFigure FigureKICKBACKVOLTAGEMEASUREMENTVIN=3.7V;AVG[1:0]=11(EightMeasurements)TimefromACQBitSettoACQCInterruptReceivedFigureMODESOFTheTPS65186hasthreemodesofoperation,SLEEP,STANDBY,andACTIVE.SLEEPmodeisthelowest-powermodeinwhichallinternalcircuitryisturnedoff.InSTANDBY,allpowerrailsareshutdownbutthedeviceisreadytoacceptcommandsthroughtheI2Cinterface.InACTIVEmodeoneormorepowerrailsare

Thisisthelowestpowermodeofoperation.Allinternalcircuitryisturnedoff,registersareresettodefaultvaluesandthedevicedoesnotrespondtoI2Ccommunications.TPS65186entersSLEEPmodewheneverWAKEUPpinispulledlow.InSTANDBYallinternalsupportcircuitryispoweredupandthedeviceisreadytoacceptcommandsthroughtheI2Cinterfacebutnoneofthepowerrailsareenabled.ThedeviceentersSTANDBYmodewhentheWAKEUPpinispulledhighandeitherthePWRUPpinispulledlowortheSTANDBYbitisset.ThedevicealsoentersSTANDBYmodeifinputUnderVoltageLockOut(UVLO),positiveboostUnderVoltage(VB_UV),orinvertingbuck-boostUnderVoltage(VN_UV)isdetected,thermalshutdownoccurs,orthePROGbitisset(seeVCOMcalibration).ThedeviceisinACTIVEmodewhenanyoftheoutputrailsareenabledandnofaultconditionispresent.Thisisthenormalmodeofoperationwhilethedeviceispoweredup.MODESLEEP→

WAKEUPpinispulledhighwithPWRUPpinhigh.RailscomeupintheorderdefinedbytheUPSEQxregisters(OKtotieWAKEUPandPWRUPpintogether).SLEEP→WAKEUPpinispulledhighwithPWRUPpinlow.RailswillremainpoweredSTANDBY→WAKEUPpinishighandPWRRUPpinispulledhigh(risingedge)ortheACTIVEbitisset.OutputrailswillpowerupintheorderdefinedbytheUPSEQxregisters.ACTIVE→WAKEUPpinishighandSTANDBYbitissetorPWRUPpinispulledlow(fallingedge).RailsareshutdownintheorderdefinedbyDWNSEQxregisters.DevicealsoentersSTANDBYintheeventofThermalShutDown(TSD),UnderVoltageLockOut(UVLO),positiveboostorinvertingbuck-boostUnderVoltage(UV),VCOMfault(VCOMF),orwhenthePROGbitisset(seeVCOMcalibration).STANDBY→WAKEUPpinispulledlowwhilenoneoftheoutputrailsarePRODUCTACTIVE→PRODUCT

WAKEUPpinispulledlowwhileatleastoneoutputrailisenabled.RailsareshutdownintheorderdefinedbyDWNSEQxregisters.POWER Battery

Allrails=OFF =NORegistersWAKEUP=hgh&WAKEUP=hgh&PWRUP=hWAKEUP= Allrails=OFF =WAKEUP=high&(STANDBYbit=1||PWRUP()||FAULT

WAKEUP=high(ACTIVEbit=1||PWRUP()

= =PRODUCTPRODUCT||,&=logicOR,logic(),()=risingedge,fallingedge.UVLO=UnderVoltageLockOutTSD=ThermalShutDown =UnderFAULT=UVLO||TSD||BOOSTUV||VCOMFigure22.GlobalStatePRODUCTWAKE-UPANDPOWERUPPRODUCTThepower-up/downorderandtimingisdefinedbyuserregistersettings.ThedefaultsettingssupporttheEInk?Vizplex?panelandtypicallydonotneedtobechanged.InSLEEPmodetheTPS65186iscompleyturnedoff,theI2Cregistersarereset,andthedevicedoesnotacceptanyI2Ctransaction.PulltheWAKEUPpinhighwiththePWRUPpinlowandthedeviceentersSTANDBYmodewhichenablestheI2Cinterface.WritetotheUPSEQ0registertodefinetheorderinwhichtheoutputrailsareenabledatpower-upandtotheUPSEQ1registerstodefinethepower-updelaysbetweenrails.Finally,settheACTIVEbitintheENABLEregisterto‘1’toexecutethepower-upsequenceandbringupallpowerrails.AlternativelypullthePWRUPpinhigh(risingedge).AftertheACTIVEbithasbeenset,thenegativeboostconverter(VN)ispoweredupfirst,followedbythepositiveboost(VB).Thepositiveboostenableisgatedbytheinternalpower-goodsignalofthenegativeboost.OnceVBisinregulation,itissuesaninternalpower-goodsignalandafterdelaytimeUDLY1hasexpired,STROBE1isissued.TherailassignedtoSTROBE1willpowerupnextandafteritspower-goodsignalhasbeenassertedanddelaytimeUDLY2hasexpired,STROBE2isissued.ThesequencecontinuesuntilSTROBE4hasoccurredandthelastrailhasbeenenabled.Topower-downthedevice,settheSTANDBYbitoftheENABLEregisterto‘1’orpullthePWRUPpinlow(fallingedge)andtheTPS65186willpowerdownintheorderdefinedbyDWNSEQxregisters.ThedelaytimesDDLY2,DDLY3,andDDLY4areweightedbyafactorofDFCTRwhichallowstheusertospaceoutthepower-downoftherailstoavoidcrossingduringdischarge.DFCTRislocatedinregisterDWNSEQ1.Thepositiveboost(VB)isshutdowntogetherwiththelastrailatSTROBE4.However,thenegativeboost(VN)remainsupandrunningforanother50ms.ThenVNispowereddownandthedeviceentersSTANDBYorSLEEPmode,dependingontheWAKEUPpin.IfeithertheACTIVEbitissetorthePWRUPpinispulledhighwhilethedeviceispoweringdown,thepower-downsequence(STROBE1-4)iscompletedfirst,followedbyapower-upsequence.VBandVNmayormaynotbepowereddownanddependingontherelativetimingofSTROBE4tothenewpower-upevent.Duringpower-up,iftheSTANDBYbitissetorthePWRUPpinispulledlow,thepower-upsequenceisabortedandthepower-downsequencestartsimmediay.DEPENDENCIESBETWEENChargepumps,LDOs,andVCOMdriveraredependentonthepositiveandinvertingbuck-boostconvertersandseveraldependenciesexistthataffectthepower-upsequencing.Thesedependenciesarelistedbelow.Invertingbuck-boost(DCDC2)mustbeinregulationbeforepositiveboost(DCDC1)canbeenabled.Internally,DCDC1enableisgatedbyDCDC2powergood.Positiveboost(DCDC1)mustbeinregulationbeforeLDO2(VNEG)canbeenabled.InternallyLDO2enableisgatedDCDC1power-good.Positiveboost(DCDC1)mustbeinregulationbeforeVCOMcanbeenabled;InternallyVCOMenableisgatedbyDCDC1powergood.Positiveboost(DCDC1)mustbeinregulationbeforenegativechargepump(CP2)canbeenabled.InternallyCP2enableisgatedbyDCDC1powergood.Positiveboost(DCDC1)mustbeinregulationbeforepositivechargepump(CP1)canbeenabled.InternallyCP1enableisgatedbyDCDC1powergood.LDO2mustbeinregulationbeforeLDO1canbeenabled.InternallyLDO1enableisgatedbyLDO2powerVNVN VB powers powersSTROBESTROBESTROBESTROBEWAKEUP

1strail

rail

rail

railSTROBE STROBE STROBE STROBE 1strail

rail

rail

railWAKEUP

powers

powersPRODUCTTOP:Power-upsequenceisdefinedbyassigningstrobestoindividualrails.STROBE1isthefirststrobetooccurPRODUCTBOTTOM:Power-downsequenceisindependentofpower-upsequence.StrobesanddelaytimesforpowerdownsequencearesetinDWNSEQ0andDWNSEQ1register.Figure23.Power-UpandPower-DownPRODUCTPRODUCTUDLYDDLYUDLYUDLYUDLYUDLYDDLYUDLYUDLYDDLYUDLYDDLY300us300us(1)MinimumdelaytimebetweenWAKEUPrisingedgeandICradytoacceptI2CtransactionInthisexamplethefirstpower-upsequenceisstartedbypullingthePWRUPpinhigh(risingedge).Power-downisinitiatedbypullingtheWAKEUPpinlow(deviceentersSLEEPmode).The2ndpower-upsequenceisinitiatedbypullingtheWAKEUPpinhighwhilethePWRUPpinisalsohigh(powerupfromSLEEPtoACTIVE).Figure24.Power-UpandPower-DownTimingTPS65186supportssoft-startforallrails,i.e.inrushcurrentislimitedduringstartupofDCDC1,DCDC2,LDO1,LDO2,CP1andCP2.IfDCDC1orDCDC2areunabletoreachpower-goodstatuswithin50ms,thecorrespondingUVflagissetintheinterruptregisters,theinterruptpinispulledlow,andthedeviceentersSTANDBYmode.LDO1,LDO2,positiveandnegativechargepumpsalsohavea50-mspower-goodtime-outlimit.Ifeitherrailisunabletopowerupwithin50msafterithasbeenenabled,thecorrespondingUVflagissetandtheinterruptpinispulledlow.However,thedevicewillremaininACTIVEmodeinthiscase.VPOS/VNEGSUPPLYLDO1(VPOS)andLDO2(VNEG)trackeachotherinawaythattheyareofoppositesignbutsamemagnitude.ThesumofVLDO1andVLOD2isguaranteedtobe<50mV.PRODUCTV3P3PRODUCTTheintegratedpowerswitchisusedtocutthe3.3-VsupplytotheEPDpanelandiscontrolledthroughtheV3P3_ENpinoftheENABLEregister.InSLEEPmodetheswitchisautomaticallyturnedoffanditsoutputisdischargedtoground.Thedefaultpower-upstateisOFF.ToturntheswitchON,settheV3P3_ENbitto1.VCOMVCOMistheoutputofapower-amplifierwithanoutputvoltagerangeof0Vto-5.11V,adjustablein10-mVsteps.InatypicalapplicationVCOMisconnectedtotheVCOMterminaloftheEPDpanelandtheamplifieriscontrolledthroughtheVCOM_CTRLpin.WithVCOM_CTRLhigh,theamplifierdrivestheVCOMpintothevoltagespecifiedbytheVCOM1andVCOM2register.Foreaseofdesign,theVCOM_CTRLpinmayalsobetiedtothebatteryorIOsupply.Inthiscase,VCOMisenabledwithSTROBE4duringthepower-upsequenceanddisabledonSTROBE1ofthepower-downsequence.ThereforeVCOMisthelastrailtobeenabledandthefirsttobedisabled.KICK-BACKVOLTAGETPS65186canperformavoltagemeasurementontheVCOMpintodeterminethekick-backvoltageofthepanel.Thisallowsin-systemcalibrationofVCOM.Toperformakick-backvoltagemeasurement,followthesePulltheWAKEUPpinandthePWRUPpinhightoenablealloutputSettheHiZbitintheVCOM2register.ThisputstheVCOMpininahigh-impedanceDrivethepanelwiththeNullwaveform.RefertoE-InkspecificationforSettheACQbitintheVCOM2registerto1.ThisstartsthemeasurementWhenthemeasurementiscomplete,theACQC(AcquisitionComplete)bitintheINT1registerissetandthenINTpinispulledlow.ThemeasurementresultisstoredintheVCOM[8:0]bitsoftheVCOM1andVCOM2Pleasenotethatthemeasurementresultisnotautomaticallyprogrammedintonon-volatilememory.Changingthepower-updefaultisdescribedinthefollowingparagraph.STORINGTHEVCOMPOWER-UPDEFAULTVALUEININTINTINTVCOMVCOMFigure25.BlockDiagramofVCOMPullWAKEUP=HIGHPullPWRUP=HIGHWriteHiZ=

DeviceentersACTIVEAllpowerrailsareupexceptVCOMVCOMpinisinHiZstateProcessordrivespanelwithNULLWriteACQ= StartsA/DWaitforACQC

IndicatesA/DconversioniscompleteIfAVG[1:0]is<>00,interruptisissedafterallconversionsarecompleteandaveragehasbeencalcutated.

Checkresultanddecidetokeepthevalueorrepeatmeasurmen.tPullPWRUP=WriteHiZ=

DeviceentersSTANDBYWritePROG= PowermustnotbeWaitforPRGC IndicatesprogrammingisPullWAKEUP= DeviceentersSLEEPPullWAKEUP= DeviceentersSTANDBYRead

Compareagainstwrittenvaluetoconfirmnewdefaulthasbeenprogrammedcorrectly.PRODUCTPRODUCTFigure26.VCOMCalibrationPRODUCTFAULTHANDLINGANDPRODUCTTheTPS65186monitorsinputandoutputvoltagesanddietemperatureandwilltakeactionifoperatingconditionsareoutsidenormallimits.WhenevertheTPS65186encounters:ThermalShutdownPositiveBoostUnderVoltageInvertingBuck-BoostUnderVoltageInputUnderVoltageLockOutitshutsdownallpowerrailsandentersSTANDBYmode.Shut-downfollowstheorderdefinedbyDWNSEQxregisters.TheexceptionisVCOMfaultwitchleadstoimmediateshutdownofallrails.Onceafaultisdetected,thePWR_GOODandnINTpinsarepulledlowandthecorrespondinginterruptbitissetintheinterruptregister.Powerrailscannotbere-enabledunlesstheinterruptbitshavebeenclearedbyreadingtheINT1andINT2register.Alternatively,togglingtheWAKEUPpinalsoresetstheinterruptbits.AsthePWRUPinputisedgesensitive,thehostmusttogglethePWRUPpintore-enabletherailsthroughGPIOcontrol,i.e.itmustbringthePWRUPpinlowbeforeassertingitagain.Alternativelyrailscanbere-enbledthroughtheI2Cinterface.WhenevertheTPS65186encountersunder-voltageonVNEG(VNEG_UV),VPOS(VPOS_UV),VEE(VEE_UV)orVDDH(VDDH_UV),railsarenotshutdownbutthePWR_GOODandnINTispulledlowwiththecorrespondinginterruptbitset.ThedeviceremainsinACTIVEmodeandrecoversautomaticallyoncethefaulthasbeenremoved.POWERGOODThepowergoodpin(PWR_GOOD)isanopendrainoutputthatispulledhigh(byanexternalpull-upresistor)whenallfourpowerrails(CP1,CP2,LDO1,LDO2)areinregulationandispulledlowifanyoftherailsencountersafaultorisdisabled.PWR_GOODremainslowifoneoftherailsisnotenabledbythehostandonlyafterallrailsareinregulationPWR_GOODisreleasedtoHiZstate(pulledupbyexternalresistor).INTERRUPTTheinterruptpin(nINT)isanopendrainoutputthatispulledlowwheneveroneormoreoftheINT1orINT2bitsareset.ThenINTpinisreleased(returnstoHiZstate)andfaultbitsareclearedoncetheregisterwiththesetbithasbeenreadbythehost.Ifthefaultpersists,thenINTpinwillbepulledlowagainafteraumof32μs.Interrupteventscanbemaskedbyre-settingthecorrespondingenablebitintheINT_EN1andINT_EN2i.e.theusercandeterminewhicheventscausethenINTpintobepulledlow.ThestatusoftheenablebitsaffectsthenINTpinonlyandhasnoeffectonanyoftheprotectionandmonitoringcircuitsortheINT1/INT2bitsNotethatpersistingfaultssuchasthermalshutdowncancausethenINTpintobepulledlowforanextendedperiodoftimewhichcankeepthehostinalooptryingtoresolvetheinterrupt.Ifthisbehaviorisnotdesired,setthecorrespondingmaskbitafterreceivingtheinterruptandkeeppollingtheINT1/INT2registertoseewhenthefaultconditionhasdisappeared.Afterthefaultisresolved,unmasktheinterruptbitagain.PANELTEMPERATURETheTPS65186providescircuitrytobiasandmeasureanexternalNegativeTemperatureCoefficientResistor(NTC)tomonitorthedisypaneltemperatureinarangefrom-10°Cto85°Cwithandaccuracyof±1°Cfrom0°Cto50°C.TemperaturemeasurementmustbetriggeredbythecontrollinghostandthelasttemperaturereadingisalwaysstoredintheTMST_VALUEregister.InterruptsareissuedwhenthetemperatureexceedstheprogrbleHOT,ordropsbelowtheprogrbleCOLDthreshold,orwhenthetemperaturehaschangedbymorethanauser-definedthresholdfromthebaselinevalue.Detailsareexinedunder“HOT,COLD,andtemperature-changeinterrupts”.PRODUCTNTCBIASPRODUCTFigure27belowshowstheblockdiagramoftheNTCbiasandmeasurementcircuit.TheNTCisbiasedfromaninternallygenerated2.25-Vreferencevoltagethroughanintegrated7.307-KΩbiasresistor.A43-kΩresistorisconnectedparalleltotheNTCtolinearizethetemperatureresponsecurve.Thecircuitisdesignedtoworkwithanominal10-kΩNTCandachievesaccuracyof±1°Cfrom0°Cto50°C.ThevoltagedropacrosstheNTCisdigitizedbya10-bitSARADCandtranslatedintoan8-bittwo’scomplementbydigitalperTable1.Table1.ADCOutputValuevs<-1111-1111-1111-1111-111100000000000000010101>0101Figure27.NTCBiasandMeasurementAtemperaturemeasurementistriggeredbysettingtheREAD_THERMbitoftheTMST1registerto1.DuringtheA/DconversiontheCONV_ENDbitoftheTMST1registerreads‘0’,otherwiseitreads‘1’.AttheendoftheA/DconversiontheEOCbitintheINT2registerissetandthetemperaturevalueisavailableintheTMST_VALUEHOT,COLD,ANDTEMPERATURE-CHANGEEachtemperatureacquisitioniscomparedagainsttheprogrbleTMST_HOTandTMST_COLDthresholdsandtothebaselinetemperature,