TPS65381-Q1 Multi-Rail Power Supply for Microcontrollers in Safety Critical Appl PDF
Preview TPS65381-Q1 Multi-Rail Power Supply for Microcontrollers in Safety Critical Appl
Product Sample & Technical Tools & Support & Folder Buy Documents Software Community TPS65381-Q1 SLVSBC4B–MAY2012–REVISEDJULY2014 TPS65381-Q1 Multi-Rail Power Supply for Microcontrollers in Safety Applications 1 Device Summary 1.1 Features 1 • QualifiedforAutomotiveApplications MonitoringCircuitryWithSeparateBattery VoltageInputPin • AEC-Q100QualifiedWiththeFollowing Results: – Self-CheckonallVoltageMonitoring(During Power-UpandAfterPower-UpInitiatedby – DeviceTemperatureGrade1: –40°Cto125°C ExternalMCU) AmbientOperatingTemperature – JunctionTemperatureSensingWithShutdown – DeviceHBMESDClassificationLevelH2 Thresholds – DeviceCDMESDClassificationLevelC3B • MicrocontrollerInterface • Multi-RailPower SupplySupportingAmong – Open-CloseWindoworQuestion-Answer Others: WatchdogFunction – TexasInstrumentsTMS570LSSeries16-Bit or – MCUError-SignalMonitor(SupportsTITMS570 32-Bit RISCFlashMicrocontroller MCUModeorOtherMCUswithPWM-Like • SupplyRails: Signaling) – Inputvoltagerange: – DIAGNOSTICStatefor PerformingDeviceSelf- • 5.8Vto36V(CAN,I/O,MCUCore,and Tests,Diagnostics,andExternalInterconnect SensorSupplyRegulatorsFunctional) Checks • 4.5Vto5.8V(3.3-V I/OandMCUCore – Safe-Statefor DeviceandSystemProtection on VoltageFunctional) ErrorEvent Detection – 6-VAsynchronousSwitch-ModePre-Regulator – ClockMonitorfor InternalOscillators WithInternalFET,1.3-ACurrent-Limit,and – Self-Testsfor Analog-andDigital-Critical TemperatureProtection CircuitsExecutedWithEveryDevicePowerUp – 5-V(CAN)SupplyVoltage,LinearRegulator orActivatedbyExternalMCUinDIAGNOSTIC WithInternalFET,350-mACurrent-Limit,and State TemperatureProtection – CRConNon-VolatileMemory,Device,and – 3.3-Vor5-VMCUI/OVoltage,LinearRegulator SystemConfigurationRegisters WithInternalFET,350-mACurrent-Limit,and – Reset circuit for MCU TemperatureProtection – DiagnosticOutputPinAllowingMCUto Observe – 0.8-Vto3.3-VAdjustableMCUCoreVoltage, DeviceInternalAnalogandDigitalSignals, Linear RegulatorControllerWithExternalFET SelectableThroughMultiplexer – SensorSupply:LinearTrackingRegulatorWith • SPIInterface TrackingInput,100-mACurrent-Limit, – ConfiguringICRegisters TemperatureProtection,andProtectionAgainst ShorttoBatteryandShorttoGround – WatchdogQuestion-Answering – ChargePump:Typ.12VAboveBatteryVoltage – DiagnosticReadout • PowerSupplyandSystem Monitoring: – CompliantWith3.3-Vand5-VLogicLevels – IndependentUnder-andOvervoltageMonitoring • Enable-DriveOutputforDisablingSafing-Path onAllRegulatorOutputs,BatteryVoltage,and orExternalPower-StagesonAnyDetected InternalSupplies System-Failure – IndependentBandgapReferenceforVoltage • Wake-UpThroughIGNITIONPinorCAN Monitoring WAKUPPin – IndependentVoltageReferencesforRegulator • Package:32-PinHTSSOPPowerPAD™ ReferencesandVoltageMonitoring.Voltage- Package 1 AnIMPORTANTNOTICEattheendofthisdatasheetaddressesavailability,warranty,changes,useinsafety-criticalapplications, intellectualpropertymattersandotherimportantdisclaimers.PRODUCTIONDATA. TPS65381-Q1 SLVSBC4B–MAY2012–REVISEDJULY2014 www.ti.com 1.2 Applications • SafetyAutomotiveApplications • IndustrialSafetyApplications – PowerSteering(EPS,orElectricalPower – SafetyPLCControllers Steering, andEHPS,orElectroHydraulic – SafetyIO ControlModules PowerSteering) – Braking(ABS,ESC,andElectricParkBreak) – Airbag – Suspension 1.3 Description The TPS65381-Q1 device is a multi-rail power supply designed to supply microcontrollers in safety applications, such as those found in automotive applications. The device supports Texas Instruments’ TMS570LSseries16-bitor32-bitRISCflashMCUandothermicrocontrollerswithdual-corelockstep(LS) orloosely-coupledarchitectures(LC). The TPS65381-Q1 device integrates multiple supply rails to power the MCU, CAN, or FlexRay, and an external sensor. An asynchronous-buck switch-mode power-supply converter with an internal FET converts the input battery voltage to a 6-V pre-regulator output. This 6-V pre-regulator supplies the other regulators. Furthermore, the device supports wake-up from IGNITION or wake-up from the CAN transceiver. A fixed 5-V linear regulator with an internal FET is integrated to be used as, for example, a CAN supply. A second linear regulator, also with an internal FET, regulates the 6 V to a selectable 5-V or 3.3-V MCU I/O voltage. The TPS65381-Q1 device comprises a linear regulator controller with an external FET and resistor divider thatregulatesthe6Vtoanexternallyadjustablecorevoltageofbetween0.8Vand3.3V. The device comprises a sensor supply with short-to-ground and short-to-battery protection. Therefore this supplycanpowerasensoroutsidetheelectronic-controlunit (ECU). The device has an integrated charge pump to provide overdrive voltage for the internal regulators. Reverse-battery protection is obtained by using the charge-pump output to control an external NMOS transistor. This solution allows for a lower minimum-battery-voltage operation compared to a traditional reverse-batteryblockingdiode. The device monitors undervoltage and overvoltage on all regulator outputs, battery voltage, and internal supplyrails.Asecondband-gapreference,independentfromthemainband-gapreference,isused forthe undervoltage and overvoltage monitoring, to avoid any drifts in the main band-gap reference from being undetected.Inaddition,regulatorcurrent-limitsandtemperatureprotectionsareimplemented. The TPS65381-Q1 safety functions feature a question-answer watchdog, MCU error-signal monitor, clock monitoring on internal oscillators, self-check on the clock monitor, CRC on non-volatile memory, a diagnostic output pin allowing the MCU to observe the internal analog and digital signals of the device, a reset circuit for the MCU, and an enable output to disable the safing-path or external power-stages on any detected system-failure. A built-in self-test (BIST) monitors the device functionality at start-up. A dedicated DIAGNOSTICstateallowstheMCUtocheckTPS65381-Q1safetyfunctions. TheTPS65381-Q1deviceisofferedinanHTSSOP-32PowerPADpackage. DeviceInformation(1) PARTNUMBER PACKAGE BODYSIZE(NOM) TPS65381-Q1 HTSSOP(32) 11.00mm×6.20mm (1) Forallavailablepackages,seetheorderableaddendumattheendofthedatasheet. 2 DeviceSummary Copyright©2012–2014,TexasInstrumentsIncorporated SubmitDocumentationFeedback ProductFolderLinks:TPS65381-Q1 TPS65381-Q1 www.ti.com SLVSBC4B–MAY2012–REVISEDJULY2014 1.4 Typical Application Diagram 1 VBAT_SAFING ENDRV 32 2 VCP SEL_VDD3/5 31 3 CP1 IGN 30 VDD6 4 CP2 VBATP 29 5 PGND SDN6 28 TPS65381-Q1 6 NRES VDD6 27 7 DIAG_OUT VDD1_G 26 8 NCS PGND 25 9 SDI VDD1_SENSE 24 10 SDO GND 23 11 SCLK VDDIO 22 12 RSTEXT VDD3/5 21 13 ERROR/WDI VDD5 20 14 CANWU GND 19 15 VSFB1 VTRACK1 18 VDD6 16 VSIN VSOUT1 17 Figure1-1. Typical ApplicationDiagram Copyright©2012–2014,TexasInstrumentsIncorporated DeviceSummary 3 SubmitDocumentationFeedback ProductFolderLinks:TPS65381-Q1 TPS65381-Q1 SLVSBC4B–MAY2012–REVISEDJULY2014 www.ti.com Table of Contents 1 DeviceSummary......................................... 1 5.2 FunctionalBlockDiagram........................... 25 .............................................. ................................. 1.1 Features 1 5.3 FeatureDescription 26 ........................................... ........................... 1.2 Applications 2 5.4 DeviceFunctionalModes 30 ............................................ ....................................... 1.3 Description 2 5.5 RegisterMaps 66 1.4 TypicalApplicationDiagram.......................... 3 6 ApplicationandImplementation.................... 89 2 Revision History......................................... 4 6.1 ApplicationInformation.............................. 89 3 PinConfigurationandFunctions................... 14 6.2 ApplicationDiagrams ............................... 90 4 Specifications........................................... 16 6.3 TypicalSystemApplicationDiagrams .............. 91 4.1 AbsoluteMaximumRatings......................... 16 7 PowerSupplyRecommendations.................. 95 4.2 Handling Ratings.................................... 16 8 DeviceandDocumentationSupport............... 95 ............... ...................................... 4.3 RecommendedOperatingConditions 17 8.1 DeviceSupport 95 ................................. ............................. 4.4 Thermal Information 17 8.2 DocumentationSupport 95 ............................ .......................................... 4.5 ElectricalCharacteristics 18 8.3 Trademarks 95 ............................... ..................... 4.6 TimingRequirements 23 8.4 ElectrostaticDischargeCaution 95 ........................... ............................................. 4.7 Switching Characteristics 24 8.5 Glossary 95 5 DetailedDescription................................... 25 9 Mechanical,Packaging,andOrderable ............................................ Information.............................................. 95 5.1 Overview 25 2 Revision History NOTE:Pagenumbersforpreviousrevisionsmaydifferfrompagenumbersinthecurrentversion. ChangesfromRevisionA(December2013)toRevisionB Page • Deletedthephrasesafetycriticalfromthedocument. .......................................................................... 1 • Addeddevicenametodocumenttitle.............................................................................................. 1 • Addedthefollowingtothedocument:DeviceInformationtable,PowerSupplyRecommendationssection, Layoutsection,DeviceandDocumentationSupport,andMechanical,Packaging,andOrderableInformation section ................................................................................................................................. 2 • ChangedthepintypefortheVDD3/5pinfromItoPWR...................................................................... 15 • ChangedthemaxvaluefortheCharge-pumpvoltagesfrom50to52VintheABSOLUTEMAXIMUMRATINGS table................................................................................................................................... 16 • AddedtheHandlingRatingstablewhichnowcontainsthestoragetemperatureandESDratings ..................... 16 • AddedaddedwithrespecttotheGNDpintotheconditionstatementintheRECOMMENDEDOPERATING CONDITIONS........................................................................................................................ 17 • MovedoperatingambienttemperaturerangefromtheAbsoluteMaximumRatingstabletotheRecommended OperatingConditionstable......................................................................................................... 17 • ChangedchangednoundervoltagetonoNRESeventandaddedVSOUTtotheinputsupplyvoltagerangeon VBATPspecificationintheRecommendedOperatingConditions ........................................................... 17 • DeletedThermalInformationtablenotes:allofthesenotesareincludedintheICPackageThermalMetrics applicationreportthatislistedinthenewtablenote........................................................................... 17 • AddedthepowerdissipationimageandnotesaftertheThermalInformationtable....................................... 17 • ChangedconditionstatementfortheELECTRICALCHARACTERISTICStablebyremoving125°CfromtheT A temperaturerangeandchangingT tothemaximumoperatingjunctiontemperature.RemovedVBATPrange J andaddedreferencetoR1.2...................................................................................................... 18 • DeletedletterAfrombeginningofPOSnumberintheVDD6-BUCKWithInternalFETandVDD1–LDOWith ExternalFETsectionsoftheElectricalCharacteristicsandTimingRequirementstable ................................. 18 • ChangedtheparameternameofI fromoutputvoltagetooutputcurrentintheElectricalCharacteristicstable.. 18 VDD6 • AddedthetestconditiontothedVDD5/dtparameterintheELECTRICALCHARACTERISTICStable................. 18 • ChangedconditionstatementfortheELECTRICALCHARACTERISTICStablebyremoving125°CfromtheT A temperaturerangeandchangingT tothemaximumoperatingjunctiontemperature.RemovedVBATPrange J andaddedreferencetoR1.2...................................................................................................... 19 • Changedthetypvaluefrom3.35to3.3and5fortheVDD3/5outputvoltageparameterintheELECTRICAL CHARACTERISTICStable......................................................................................................... 19 • Changedtheunitfrom†toVforthe3.3,VDD3/5outputvoltagedynamicparameterintheElectrical Characteristicstable................................................................................................................ 19 4 RevisionHistory Copyright©2012–2014,TexasInstrumentsIncorporated SubmitDocumentationFeedback ProductFolderLinks:TPS65381-Q1 TPS65381-Q1 www.ti.com SLVSBC4B–MAY2012–REVISEDJULY2014 • Changedtheparameterof3.8intheElectricalCharacteristicstablefromVDD5toVDD6............................... 19 • ChangedconditionstatementfortheELECTRICALCHARACTERISTICStablebyremoving125°CfromtheT A temperaturerangeandchangingT tothemaximumoperatingjunctiontemperature.RemovedVBATPrange J andaddedreferencetoR1.2...................................................................................................... 20 • ChangedtheparameterofA4.11intheElectricalCharacteristicstablefromVBATPtoVDD6.......................... 20 • ChangedMVVSOUT1minandmaxvaluesfrom–35and35to–25and25intheElectricalCharacteristicstable... 20 • ChangedthemaxvaluefortemperaturerangelistedintheVdrS1parametertestconditionfrom165to150in theElectricalCharacteristicstable ............................................................................................... 20 • ChangedtheMINandMAXvaluesoftheLdReg parameterfrom–25and25to–35and35inthe VSOUT1 ElectricalCharacteristicstable .................................................................................................... 20 • ChangedconditionstatementfortheELECTRICALCHARACTERISTICStablebyremoving125°CfromtheT A temperaturerangeandchangingT tothemaximumoperatingjunctiontemperature.RemovedVBATPrange J andaddedreferencetoR1.2...................................................................................................... 21 • ChangedthetypicalvaluefortheVDD3/5_OV5-Vhysteresissettingfrom400to140intheElectrical Characteristicstable................................................................................................................ 21 • AddedDCconditionnotetotheVSOUT1_UVandVSOUT1_OVparametersintheElectricalCharacteristics table .................................................................................................................................. 21 • ChangedconditionstatementfortheELECTRICALCHARACTERISTICStablebyremoving125°CfromtheT A temperaturerangeandchangingT tothemaximumoperatingjunctiontemperature.RemovedVBATPrange J andaddedreferencetoR1.2...................................................................................................... 22 • ChangedmaxvaluefortheR (9.2a)parameterfrom86to40intheElectricalcharacteristicstable.. 22 dson_ENDRV_NRES • DeletednotereferencefortheR parameter(9.3)intheElectricalCharacteristicstable........................... 22 RSTEXT • Changedminvaluefrom300to350fortheV (9.5)parameterintheELECTRICAL ENDRV_NRES_TH CHARACTERISTICStable ........................................................................................................ 22 • AddednotereferenceandtestconditiontotheV parameter(10.1)intheELECTRICAL DIGIN_HIGH CHARACTERISTICStable ........................................................................................................ 22 • MovedtimingandswitchingcharacteristicsoutoftheElectricalCharacteristicstableandintoaTiming RequirementsandSwitchingRequirementstable(respectively).AlsomovedthecapacitanceatC notetothe SDO TimingRequirementsandSwitchingRequirementstables.................................................................... 23 • ChangedtheTYPvaluetotheMAXvalueoftheSPIclockfrequencyparameterfortheVDDIO=5Vtest conditionintheElectricalCharacteristicstable ................................................................................. 23 • Addedimagereferencetotimingandswitchingrequirementparameters .................................................. 23 • Changedmaxvalueoft (13.11)from25to53.3intheELECTRICALCHARACTERISTICStable.................... 24 tri • AddedtheOverviewsectiontotheDetailedDescriptionsection............................................................. 25 • MovedblockdiagramintotheDetailedDescriptionsectionandupdatedblockcolors.................................... 25 • ChangedtheOVmaxvalueforVDD3/5(3.3V)from3.63to3.6intheVoltageMonitoringOverviewtable .......... 33 • AddednMASKcommentstotheUVandOVimpactondevicebehaviorforVDD1intheVoltageMonitoring Overviewtable....................................................................................................................... 33 • MovedtheInternalErrorSignalstabletoaftertheVoltageMonitoringOverviewtableintheDetailedDescription section ............................................................................................................................... 34 • ChangedtheTYPvaluefortheAVDD_UVNsignalfrom3.81to3.6intheInternalErrorSignalstable.Also changedthedevicestatefromNotchangedforNRESandENDRVtoLOW,andforStatetoSTAND-BY ........... 34 • ChangedtheTYPvaluefortheVCP12_UVNsignalfrom7.32to7.43intheInternalErrorSignalstable ............ 34 • ChangedtheTYPvaluefortheVCP12_OVsignalfrom14to14.2intheInternalErrorSignalstable ................ 34 • ChangedthetypvalueforVCP_OVfrom20to21intheInternalErrorSignalstable .................................... 34 • ChangedNUVonsignalnamestoUVNthroughout ........................................................................... 34 • ChangedtheMINvaluefortheLOCLKsignalfrom0.740.7452to0.742intheInternalErrorSignalstable .......... 34 • MovedtheInternalErrorSignalstabletoaftertheVoltageMonitoringOverviewtableintheDetailedDescription section ............................................................................................................................... 35 • ChangedtheVBATP_OVMINandMAXvaluesfrom29to34.7and32to36.7(respectively)intheInternal ErrorSignalstable .................................................................................................................. 35 • ChangedthedevicestateoftheVDD3_5_OTbitfromSTANDBYtoincludechange .................................... 35 • ChangedthemaxvaluesforVDD5_CLandVDD3_5_CLfrom600to650intheInternalErrorSignalstable ....... 35 • AddedtheDVDD_UVsignaltotheInternalErrorSignalstable ............................................................. 35 • Changed ............................................................................................................................. 35 • DeletedWatchdogfunctionconfigurationfromthepost-BIST-resetinitializationlistintheLogicBuilt-InSelf-Test (LBIST)section...................................................................................................................... 38 • ChangedVCPvoltagerangefrom0.8to5.5to0.6to4 ...................................................................... 40 • ReplacedtheVSFB1sensor-supplyfeedbackvoltagerowwittheVSOUT1sensor-supplyvoltagerowinthe AnalogMUXSelectionTable...................................................................................................... 40 Copyright©2012–2014,TexasInstrumentsIncorporated RevisionHistory 5 SubmitDocumentationFeedback ProductFolderLinks:TPS65381-Q1 TPS65381-Q1 SLVSBC4B–MAY2012–REVISEDJULY2014 www.ti.com • ChangedtheVoltageRange/AccuracyvalueforbothMAIN_BGandVMON_BGfrom1.226to2.5Vinthe AnalogMUXSelectiontable....................................................................................................... 40 • ChangedthenamebitthatmustbeconfiguredforDIGITALMUXmodefromDIAG_MUXtoMUX_CFGinthe DigitalMUX(DMUX)section ...................................................................................................... 43 • DeletedBitsINT_CON[2:0]inDIAG_CFG_CTRLregistermustbesetto111listitemfromtheSDOdiagnostic checksequenceintheMUXinterconnectchecksection...................................................................... 43 • ChangedtheRTbitsfrom4:0to6:0intheT calculationintheWDTIConfigurationWithanExternalTrigger WCW Input(DefaultMode)section....................................................................................................... 45 • DeletedtheCLOSEwindownotefromthePossibleCasesforBadWatchdogEventimageandupdatedtheiamge 46 • Added+1tothedurationtimeprogramcalculationsintheWatchdogToken-ResponseSequenceRunsection andchangedthesecondcalculationfromT toT ...................................................................... 48 WOW WCW • ChangedthefiltertimefortheERROR/WDIdeglitchfrom15-sto15-µsintheMCUErrorSignalMonitor(MCU ESM)section......................................................................................................................... 54 • Changedthelow-pulsedurationincrementfrom15-sto15-µsinthePWMModesection............................... 56 • ChangedtheResetandEnableCircuitfiguretoreflectovertemperaturebehavior........................................ 61 • Added_UVtothenMASK_VDD1_OVnameintheResetandEnableCircuitimage .................................... 61 • Added_UVtothenMASK_VDD1_OVnameinDIAGNOSTICandACTIVEstatetextboxoftheDevice ControllerStateDiagramimage .................................................................................................. 63 • DeletedWDTfailuretextfromthefirstlistitemintheSAFEStatesection ................................................. 65 • MovedalloftheregistersintooneRegisterMapsection ..................................................................... 68 • ChangedD0from1to0intheDEV_REVRegistertable..................................................................... 68 • ChangedD1andD0from0toXintheDEV_STATERegistertable........................................................ 68 • Changedthedeglitchedminimumtimefrom7.7to7.5fortheIGNbitdescriptionintheDEV_STATEregister ...... 68 • ChangedD7fromRSVand1toVDD_3_5_SELandXintheDEV_CFG1Registertable............................... 69 • ChangedD6fromnMASK_VDD_UVand1tonMASK_VDD_UV_OVand0intheDEV_CFG1Registertable....... 69 • ChangedthedefaultvalueofthenMASK_VDD1_UV_OVbitfrom1to0andtheVDD1bitvaluefrom0to1in theDEV_CFG1Register........................................................................................................... 69 • ChangedbitD5namefromMASK_VBAT_OVtoMASK_VBATP_OVintheDEV_CFG2Registertable .............. 70 • ChangedVDD6,clearing,andre-enablingtextfromtheD[7]descriptionwhenEN_VDD3/5_OTissetto'1'and changedtowhensetto'''intheDEV_CFG2Registertable.................................................................. 70 • ChangedtheD[7]descriptionwhenEN_VDD3/5_OTissetto'0'byremovingtheSAFETY_STAT_REG1,VDD6 andre-enabletextintheDEV_CFG2Registertable.Alsochangedfromwhensetto'0'towhensetto'1' ........... 70 • ChangedD[3:0]descriptionintheDEV_CFG2Registertablefrombitsarenotread/writabletobitsare read/writable......................................................................................................................... 70 • DeletedafterSPIreadaccessfromtheclearto0descriptionofeachbitintheVMON_STAT_1Register............ 71 • DeletedafterSPIreadaccessfromtheclearto0descriptionofeachbitintheVMON_STAT_2Register............ 72 • DeletedafterSPIreadaccessfromtheclearto0descriptionofeachbitintheSAFETY_STAT_1Register.......... 73 • DeletedafterSPIreadaccessfromtheclearto0descriptionofeachbitintheSAFETY_STAT_2Register.......... 74 • AddeddescriptiontobitD[4]whensettoone1whenthedeviceistheDIAGNOSTICstate ........................... 74 • ChangedthenameofbitD5intheSAFETY_STAT_3registerfromNRES_INtoNRES_ERR ......................... 75 • ChangedtheD[5]NRES_IN,Resetinputstatus,registerdescriptiontoNRES_ERR,Resetinputerrorand changefirstdescriptionforsettingthisbitto1.................................................................................. 75 • Updatedclearedto0descriptionoftheLBIST_ERRbitintheSAFETY_STAT_3register .............................. 75 • AddedDIAGNOSTICstatedescriptionforsettingbitD[3]andD[2]to1 ................................................... 75 • ChangedSPIreadaccesstointernalNPORfromtheLOCLKbitdescriptionintheSAFETY_STAT_4Register..... 76 • ChangedbitD7andbitD6from1to0intheSAFETY_ERR_CFGRegistertable........................................ 77 • ChangedtheSAFETY_STAT4registerbitfromD4toD5intheABIST_EN[1:0]descriptionsinthe SAFETY_BIST_CTRLRegistertable ............................................................................................ 78 • ChangednamesofprotectedregistersintheCRG_CRC_ENbitdescriptionintheSAFETY_CHECK_CTRL Register............................................................................................................................... 79 • ChangedmonitoredtonotmonitoredintheNO_ERRORbitdescriptionforsettingthisbitto1inthe SAFETY_CHECK_CTRLRegister ............................................................................................... 79 • ChangedCTRLtoCFGinthereadandwritecommandsoftheSAFETY_FUNC_CFGRegister....................... 80 • ChangedD7from0to1intheSAFETY_FUNC_CFGRegistertable....................................................... 80 • ChangedD4from1to0intheSAFETY_FUNC_CFGRegistertable....................................................... 80 • ChangedD0from0toXintheSAFETY_FUNC_CFGRegistertable....................................................... 80 • UpdatedtheWD_RST_ENbitdescriptionforsettingthisbitto0intheSAFETY_FUNC_CFGRegister .............. 80 • Changed15secondsto15µsintheSAFETY_ERR_PWM_HRegistertabledescription................................ 81 • Changedthetimereferenceamountfrom15sto15µsinthePWML[7:0]bitdescriptionforwhenERR_CFGis setto0intheSAFETY_ERR_PWM_LRegister ............................................................................... 81 6 RevisionHistory Copyright©2012–2014,TexasInstrumentsIncorporated SubmitDocumentationFeedback ProductFolderLinks:TPS65381-Q1 TPS65381-Q1 www.ti.com SLVSBC4B–MAY2012–REVISEDJULY2014 • Changed5secondsto5µsintheSAFETY_ERR_PWM_HRegistertabledescription................................... 81 • DeletedNote:Withconfiguration001settingforINT_CON[2:0]bitstextfromtheSPI_SDOdescriptioninthe DIAG_CFG_CTRLRegister.Alsochangedthe111descriptionoftheINT_CON[2:0}]fromcontrollingthestateof theSPI_SDOoutputbuffertoNotapplicable ................................................................................... 83 • Includedbit2toallWD_FAIL_CNTbitreferences ............................................................................ 85 • ChangedcommandfortheWDT_ANSWERRegisterfromReadtoWrite.................................................. 86 • ChangedthedefaultsettingofVSOUT1_ENfrom1tointheSENS_CTRLRegister..................................... 86 • ChangedMovedtheApplicationInformationsectionintotheApplicationandImplementationsectionandadded productfolderreferences........................................................................................................... 90 ChangesfromOriginal(May2012)toRevisionA Page • Changedcurrentlimitfor6-Vpre-regulatorfrom1.5Ato1.3AintheFEATURESlist..................................... 1 • Addedcurrentlimittothe5-V(CAN)bulletintheFEATURESlist ............................................................ 1 • Addedcurrentlimittothe3.3-Vor5-VMCUI/OVoltagebulletintheFEATURESlist .................................... 1 • DeletedreversebatteryprotectionbulletfromtheFEATURESlist............................................................ 1 • Changedcurrentlimitfrom300mAto100mAinthesensorsupplybulletintheFEATURESlist ....................... 1 • Deletedwake-upandenablecircuitbulletsfromtheFEATURESlist......................................................... 1 • AddedIndependenttovoltagemonitoringbulletintheFEATURESlist....................................................... 1 • AddedIndependentBandgapReferencebullettotheFEATURESlist........................................................ 1 • AddedDiagnosticOutputPinbullettotheFEATURESlist..................................................................... 1 • AddedSafing-PinandIGNITIONPinbulletstotheFEATURESlist........................................................... 1 • ChangeddocumentstatusfromProductPreviewtoProductionData......................................................... 1 • AddedCANTransceiversentencetothesecondparagraphintheDESCRIPTION........................................ 2 • Changedadjustablecorevoltagerangefrom0.8and2.6Vto0.8and3.3VintheDESCRIPTION..................... 2 • Addeddiagnosticoutputpinandenableoutputtothelistoffeatureslistedintheeighthparagraphinthe DESCRIPTION........................................................................................................................ 2 • Changedtodatamanualtemplatetoincludetableofcontentsandsectionnumbers...................................... 2 • AddedADC,VDD6,toTypicalApplicationDiagram............................................................................. 3 • ChangedPGNDtypefrominputtogroundinPINFUNCTIONStable....................................................... 14 • ChangedPOSnumbersinABSOLUTEMAXIMUMRATINGStableforadjustments..................................... 16 • ChangedPOSnumbersinABSOLUTEMAXIMUMRATINGStableforadjustments..................................... 16 • AddedCharge-pumpoverdrivevoltagetotheABSOLUTEMAXIMUMRATINGStable.................................. 16 • DeletedDMUXOfromLogicI/Ovoltagelist(M1.15)intheABSOLUTEMAXIMUMRATINGStable................... 16 • DeletedT minvalueof–40fromABSOLUTEMAXIMUMRATINGStable ................................................ 16 J • ChangedunitforCDMoncornerpins(750)fromkVtoVintheABSOLUTEMAXIMUMRATINGStable............. 16 • DeletedT minvalueof–40fromABSOLUTEMAXIMUMRATINGStable ................................................ 17 J • DeletedVDDIOinternalpullupdiodenotefromtheRECOMMENDEDOPERATINGCONDITIONStable............. 17 • AddedvaluestothecurrentconsumptionparameterintheRECOMMENDEDOPERATINGCONDITIONStable... 17 • ChangedconditionstatementfortheELECTRICALCHARACTERISTICStablebyaddingT overjunction A temperaturewithupto150°C ..................................................................................................... 18 • AddedVDD6 parametertotheELECTRICALCHARACTERISTICStable ............................................. 18 ripple • AddedVDD6outputvoltagetoI parameter(A1.2)intheELECTRICALCHARACTERISTICStable .............. 18 VDD6 • ChangedexampletoV (A1.3)testconditionintheELECTRICALCHARACTERISTICStable................... 18 dropout6 • ChangedI parameterdescriptionfromcurrent-limittopeakcurrentintheELECTRICAL VDD6_limit CHARACTERISTICStable......................................................................................................... 18 • ChangedA1.5fromF ,switchingfrequencytoƒ ,clockfrequency,addednote,anddeletedtest sw_VDD6 clk_VDD6 conditionfromtheELECTRICALCHARACTERISTICStable.Alsoaddedtestcondition................................. 18 • ChangedtestconditionforDC parameter(A1.6)fromVBATP>7Vto0<I <1.3AintheELECTRICAL VDD6 VDD6 CHARACTERISTICStable......................................................................................................... 18 • AddedHysteresisparameter,minandmaxvaluestoTprot (A1.7)intheELECTRICALCHARACTERISTICS VDD6 table.ChangedtestconditionfromGlobalshutdowntoProtectionofVDD6,sharedwithVDD3/5thermal protection.forbothTprot parameters........................................................................................ 18 VDD6 • AddedHysteresisparameter,minandmaxvaluestoTprot (2.13)intheELECTRICALCHARACTERISTICS VDD5 table.ChangedtestconditionfromVDD5switch-offtoProtectionofVDD5.Incaseofdetectedover-temperature, onlyVDD5willbeswitched-offforbothTprot parameters................................................................ 18 VDD5 • ChangedconditionstatementfortheELECTRICALCHARACTERISTICStablebyaddingT overjunction A temperaturewithupto150°C ..................................................................................................... 19 • AddedVDD3/5end-valuetotestconditionforthedVDD35/dtparameter(3.11)intheELECTRICAL Copyright©2012–2014,TexasInstrumentsIncorporated RevisionHistory 7 SubmitDocumentationFeedback ProductFolderLinks:TPS65381-Q1 TPS65381-Q1 SLVSBC4B–MAY2012–REVISEDJULY2014 www.ti.com CHARACTERISTICStable......................................................................................................... 19 • AddedHysteresisparameter,minandmaxvaluestoTprot (3.13)intheELECTRICAL VDD3/5 CHARACTERISTICStable.ChangedtestconditionfromGlobalshutdowntoProtectionofVDD3/5,treatedas globalthermalshutdown(shutdownforallregulators)forbothTprot parameters................................... 19 VDD3/5 • ChangedconditionstatementfortheELECTRICALCHARACTERISTICStablebyaddingT overjunction A temperaturewithupto150°C ..................................................................................................... 20 • AddedtestconditiontothedVDD1/dtparameter(A4.14)intheELECTRICALCHARACTERISTICStable ........... 20 • AddedVSOUT1texttotestconditionforVSOUT1parameter(5.1)intheELECTRICALCHARACTERISTICS table................................................................................................................................... 20 • ChangedMVVSOUT1minandmaxvaluesfrom–15and15to–35and35intheELECTRICAL CHARACTERISTICStable......................................................................................................... 20 • AddedminandmaxvaluesfortheThresholdfortracking/non-trackingparameterintheELECTRICAL CHARACTERISTICStable......................................................................................................... 20 • AddedHysteresisparameter,minandmaxvaluestoTprot (5.13)intheELECTRICAL VSOUT1 CHARACTERISTICStable.ChangedtestconditionfromVSOUT1switch-offtoProtectionofSensorSupply. OnlyVSOUT1switch-offforbothTprot parameters..................................................................... 20 VSOUT1 • ChangedminandmaxvaluesforVBATP_OV parameterfrom29.5and32.5to34.7and36.7(respectively)in rise theELECTRICALCHARACTERISTICStable.Alsoaddedtestcondition................................................... 20 • DeletedVBATP_OVhys(POS6.6)fromtheELECTRICALCHARACTERISTICStable.................................. 20 • ChangedminandmaxvaluesforVBATP_OV parameterfrom29and32to34.4and36.3(respectively)inthe fall ELECTRICALCHARACTERISTICStable.Alsoaddedtestcondition....................................................... 20 • ChangedconditionstatementfortheELECTRICALCHARACTERISTICStablebyaddingT overjunction A temperaturewithupto150°C ..................................................................................................... 21 • AddedHysteresisparameter,minandmaxvaluestoVDD5_UV(6.8)intheELECTRICALCHARACTERISTICS table. ................................................................................................................................. 21 • ChangedmaxvalueforVDD5_OVfrom5.5to5.45intheELECTRICALCHARACTERISTICStable.................. 21 • AddedHysteresisparameter,minandmaxvaluestoVDD5_OV(6.10)intheELECTRICAL CHARACTERISTICStable. ....................................................................................................... 21 • ChangedminvalueforVDD3/5_UVwithtestconditionof3.3-Vsetting(undervoltage)from2.97to3inthe ELECTRICALCHARACTERISTICStable....................................................................................... 21 • ChangedmaxvalueforVDD3/5_UVwithtestconditionof5-Vsetting(undervoltage)from4.8to4.85inthe ELECTRICALCHARACTERISTICStable....................................................................................... 21 • AddedHysteresisparameterfor3.3and5Vsettings,minandmaxvaluestoVDD3/5_UV(6.12)inthe ELECTRICALCHARACTERISTICStable. ...................................................................................... 21 • ChangedmaxvalueforVDD3/5_OVwithtestconditionof3.3-Vsettingfrom3.63to3.6intheELECTRICAL CHARACTERISTICStable......................................................................................................... 21 • AddedHysteresisparameterfor3.3and5Vsettings,minandmaxvaluestoVDD3/5_OV(6.14)inthe ELECTRICALCHARACTERISTICStable. ...................................................................................... 21 • AddedHysteresisparameter,minandmaxvaluestoVDD1_UV(6.16)intheELECTRICAL CHARACTERISTICStable.ChangedtestconditionfromSensedonVDD1_SENSEpintoSensedon VDD1_SENSEpin.Relativethresholdsarewithrespecttonominal800-mVVDD1SENSE(Pos4.2)forboth VDD1_UVparameters.............................................................................................................. 21 • AddedHysteresisparameter,minandmaxvaluestoVDD1_OV(6.17)intheELECTRICAL CHARACTERISTICStable.ChangedtestconditionfromSensedonVDD1_SENSEpintoSensedon VDD1_SENSEpin.Relativethresholdsarewithrespecttonominal800-mVVDD1SENSE(Pos4.2)forboth VDD1_OVparameters.............................................................................................................. 21 • AddedHysteresisparameter,minandmaxvaluestoVSOUT1_UV(6.19)intheELECTRICAL CHARACTERISTICStable.ChangedtestconditionfromSensedonVSFB1pintoSensedonVSFB1pin Relativethresholdsare:forbothVSOUT1_UVparameters................................................................... 21 • AddedHysteresisparameter,minandmaxvaluestoVSOUT1_UV(6.20)intheELECTRICAL CHARACTERISTICStable.ChangedtestconditionfromSensedonVSFB1pintoSensedonVSFB1pin Relativethresholdsare:forbothVSOUT1_UVparameters................................................................... 21 • AddedHysteresisparameter,minandmaxvaluestoVDD6_UV(6.22)intheELECTRICAL CHARACTERISTICStable.AlsoaddedtestconditionforbothVDD6_UVparameters................................... 21 • ChangedconditionstatementfortheELECTRICALCHARACTERISTICStablebyaddingT overjunction A temperaturewithupto150°C ..................................................................................................... 22 • AddedHysteresisparameter,minandmaxvaluestoVDD6_OV(6.23)intheELECTRICAL CHARACTERISTICStable.AlsoaddedtestconditionforbothVDD6_OVparameters................................... 22 • AddedtestconditiontotheI_IGNparameterinthetheELECTRICALCHARACTERISTICStable(7.4)................ 22 • ChangedI_CANparameter(7.7)toI_CANWUandaddedtestconditiontotheELECTRICAL 8 RevisionHistory Copyright©2012–2014,TexasInstrumentsIncorporated SubmitDocumentationFeedback ProductFolderLinks:TPS65381-Q1 TPS65381-Q1 www.ti.com SLVSBC4B–MAY2012–REVISEDJULY2014 CHARACTERISTICStable......................................................................................................... 22 • ChangedI_CAN_rev(7.8)maxvaluefrom1to–1intheELECTRICALCHARACTERISTICStable................... 22 • AddedtestconditionforI (8.2)intheELECTRICALCHARACTERISTICStable........................................ 22 CP • Addedminandmaxvaluesforf (8.3)intheELECTRICALCHARACTERISTICStable................................ 22 CP • Deletedminvalueof11fortheR (9.2a)parameterintheELECTRICALCHARACTERISTICS dson_ENDRV_NRES table .................................................................................................................................. 22 • Addedinputandlogic1totheV parameter(9.5)descriptionintheELECTRICAL ENDRV_NRES_TH CHARACTERISTICStable......................................................................................................... 22 • Deletedmaxvaluefrom500to450fortheV (9.5)parameterintheELECTRICAL ENDRV_NRES_TH CHARACTERISTICStable ........................................................................................................ 22 • AddednotereferenceandtestconditiontotheV parameter(10.2)intheELECTRICAL DIGIN_LOW CHARACTERISTICStable ........................................................................................................ 22 • AddednotereferenceandtestconditiontotheV parameter(10.3)intheELECTRICAL DIGIN_HYST CHARACTERISTICStable.Alsoaddedparametername..................................................................... 22 • Changed10.4fromemptytotheR parametertotheELECTRICALCHARACTERISTICStable ......... 22 DIAGOUT_AMUX • AddedpinnotetotheV parameter(10.5)intheELECTRICALCHARACTERISTICStable ................ 22 DIGOUT_HIGH • AddedpinnotetotheV parameter(10.6)intheELECTRICALCHARACTERISTICStable................. 22 DIGOUT_LOW • Addedminandmaxvaluesfort (9.4a)intheELECTRICALCHARACTERISTICStable..................... 23 RSTEXT(0kΩ) • Addedtestconditiontothef parameter(11.1)intheELECTRICALCHARACTERISTICStable................... 23 Sysclk • AddedforMCUerrorsignalmonitortothet parameter(12.1)intheELECTRICAL ERROR_WDI_deglitch CHARACTERISTICStable ........................................................................................................ 23 • Changedmaxvalueforthet parameter(12.1)from15.75to16.25intheELECTRICAL ERROR_WDI_deglitch CHARACTERISTICStable......................................................................................................... 23 • Addedt parametertotheELECTRICALCHARACTERISTICStable................................................ 23 WD_pulse • Addedtwotestconditionstothef parameter(13.1)andremovedthesinglemaxvalueof8toreplaceitwith SPI themaxvalueforeachconditionintheELECTRICALCHARACTERISTICStable........................................ 23 • Addedtwotestconditionstothet parameter(13.2)andremovedthesingleminvalueof125toreplaceitwith SPI theminvalueforeachconditionintheELECTRICALCHARACTERISTICStable......................................... 23 • Changedmaxvaluefort (13.7)tominvalueintheELECTRICALCHARACTERISTICStable.Alsochanged susi parameterdescriptionfromrisingedgetofallingedgeofSCLK.............................................................. 23 • Changedminvaluefrom250to788forthet parameter(13.10)intheELECTRICALCHARACTERISTICS hlcs table.AlsoaddedNCShightexttoparameterdescription.................................................................... 23 • AddedSDOtransitionfromtri-statetot parameter(13.6)descriptionintheELECTRICALCHARACTERISTICS d1 table................................................................................................................................... 24 • Changedmaxvalueoft from30to53.3intheELECTRICALCHARACTERISTICStable............................. 24 d1 • Changedmaxvalueoft from30to85.7intheELECTRICALCHARACTERISTICStable.parameter d2 descriptionfromfallingedgetorisingedgeofSCLK........................................................................... 24 • Changedt parameter(13.11)descriptionfromHi-ZstatetotristateintheELECTRICALCHARACTERISTICS tri table................................................................................................................................... 24 • Changedmaxvalueoft (13.11)from15to25intheELECTRICALCHARACTERISTICStable...................... 24 tri • Addedt torightsideofSPITimingParametersdiagram.................................................................... 24 d2 • AddedtheSPISDOBufferSource/SinkCurrentgraphaftertheELECTRICALCHARACTERISTICStable........... 24 • Changedblockdiagram............................................................................................................ 25 • AddedconditionforwhentheN-channelMOSFETturnsontothesecondparagraphintheVDD6BuckSwitch- ModePowerSupplysection ...................................................................................................... 26 • DeletedclearingoutofSAFETY_STATfromre-enableVDD5paragraphandchangedSENS_CTRLbitfrom4to D4intheVDD5LinearRegulatorsection........................................................................................ 26 • AddedthedefaultVDD1paragraphtotheendoftheVDD1LinearRegulatorsection.................................... 27 • AddedsentencetothefirstparagraphintheVSOUT1LinearRegulatorsectiondescribingwhatoccursafter completionoftheVDDxramp-up................................................................................................. 27 • Changedtrackingoffsetfrom±15to±35intheVSOUT1LinearRegulatorsection....................................... 27 • AddedSPIcommandsettingtotheseventhparagraphintheVSOUT1LinearRegulatorsection...................... 28 • AddedDIAGNOSTICstatetexttotheWake-Upsection....................................................................... 29 • ChangedsecondparagraphintheWake-Upsection:changededge-sensitivetolevel-sensitiveandpulse durationtodeglitchtime............................................................................................................ 29 • Addedduringapower-upeventtotheResetExtensionsectionandremovedVDD1fromthedescription............ 29 • ChangedtheResetExtensionsectionbysplittingparagraphintotwoandaddingnewVDD1textinbetween ....... 29 • Deletedopen-connectandRESETstatesentencefromthelastparagraphintheResetExtensionsection........... 29 • ChangedPower-UpandPower-DownBehaviorimageinthePower-UpandPower-DownBehaviorsection......... 30 • AddednotestotheIGNPowerLatchandPOST-RUNResetimageinthePower-UpandPower-DownBehavior Copyright©2012–2014,TexasInstrumentsIncorporated RevisionHistory 9 SubmitDocumentationFeedback ProductFolderLinks:TPS65381-Q1 TPS65381-Q1 SLVSBC4B–MAY2012–REVISEDJULY2014 www.ti.com section................................................................................................................................ 31 • DeletedresetdriverfromENDRVbulletintheSafetyFunctionsandDiagnosticsOverviewsection ................... 32 • AddedtheVoltageMonitoringOverviewtableandtablereferencetotheVoltageMonitor(VMON)section........... 32 • AddedInternalErrorSignalstable................................................................................................ 34 • Deletedloss-of-powernoteandcleared-latchedbulletfromtheclockfailurelistintheLoss-of-ClockMonitor (LCMON)section.................................................................................................................... 36 • AddedSPIregisterbittothelatchedbulletintheclockfailurelistintheLoss-of-ClockMonitor(LCMON)section... 36 • AddedABISTcaseparagraphsfollowingtheAnalogBISTRunStatesimage............................................. 37 • MovedLogicBuilt-InSelf-Test(LBIST)sectionfromafterDMUXtablesandaddedinitializedregisterslist........... 38 • DeletedVDD5andVSOUT1suppliesfromfirstparagraphoftheJunctionTemperatureMonitoringandCurrent Limitingsection ..................................................................................................................... 38 • AddedVSOUT1suppliesparagraphtotheJunctionTemperatureMonitoringandCurrentLimitingsection........... 38 • DeletedSTANDBYStatetextfromtheJunctionTemperatureMonitoringandCurrentLimitingsectionand changedtoregulatedsupplies.AlsoaddedENDRVpin....................................................................... 38 • ChangedthirdparagraphoftheJunctionTemperatureMonitoringandCurrentLimitingsectiontoincludeNRES assertedlowandVDD5reenable ................................................................................................ 38 • AddedThermalandOvercurrentProtectOverviewtableandtablereferencetotheJunctionTemperature MonitoringandCurrentLimitingsection.......................................................................................... 39 • AddedanaloganddigitalsignalsandnotestotheDiagnosticOutputPinDIAG_OUTimageintheDiagnostic OutputPinDIAG_OUTsection.................................................................................................... 39 • AddedaddeddiasabledsatedescriptionfortheDIAG_OUTpininthelastparagraphoftheDiagnosticOutput PinDIAG_OUTsection............................................................................................................. 40 • Added±percentagetothedivideratiovalues(exceptforMAIN_BGandVMON_BG)theAnalogMUXSelection table................................................................................................................................... 40 • AddedaccuracyandcorrespondingtablenotetothevoltagerangecolumnintheAnalogMUXSelectiontable..... 40 • Added AnalogMUXSelectiontable.............................................................. 40 themaxoutputresistancecolumntothe • ChangedtheDIAG_MUX_SELcolumnandheaderintheAnalogMUXSelectiontable.................................. 40 • Addedthevoltage/signalnameforsignalnumberA.7fromBG1toMAIN_BGintheAnalogMUXSelectiontable .. 40 • AddedadditionaltextandnotetofurtherexplaintheAnalogMUXSelectionTable ...................................... 40 • AddedsecondparagraphtotheDigitalMUX(DMUX)section................................................................ 40 • Addeddiagnosticchecktext,DiagnosticMUXOutputstate(byMUX_OUTbit),andMUXinterconnectcheck sectionafterDMUXtables......................................................................................................... 43 • ChangedtheWatchdogEnableFunctionimageintheWDTFailCounter,WDTStatus,andWDTFailEvent section................................................................................................................................ 44 • AddedwatchdogfailcountertextaftertheWatchdogStatusforFailCounterValueRangetable....................... 44 • Changedtriggereventsparagraph(third)intheWDTIConfigurationwithExternalTriggerInput(DefaultMode) section................................................................................................................................ 45 • AddedSPIregisternamesandDIAGNOSTICstatetotheopenandclosewindowprogrammingsentenceinthe WDTIConfigurationwithExternalTriggerInput(DefaultMode)section .................................................... 45 • AddedtheWDTIwindowsequencingandSPISW_LOCKparagraphsintheWDTIConfigurationwithExternal TriggerInput(DefaultMode)section............................................................................................. 45 • AddedtheWDTIrisingedgeparagraphintheWDTIConfigurationwithExternalTriggerInput(DefaultMode) sectionandaddedt filtertimeparagraph................................................................................ 45 WD_pulse • AddedimagetotheWDTIConfigurationwithExternalTriggerInput(DefaultMode)section............................ 46 • AddedimagetotheWDTIConfigurationwithExternalTriggerInput(DefaultMode)section............................ 46 • DeletedASICreferenceinthefirstparagraphoftheWatchdogQuestion/andAnswerConfigurationThrough SPIsection........................................................................................................................... 47 • AddedaddednoteintheWatchdogQuestion/andAnswerConfigurationThroughSPIsection ........................ 47 • Addedstartsanewwatchdogtoken-responsesequenceruntotheno-responseeventdescriptioninparagraph fouroftheWatchdogQuestion/andAnswerConfigurationThroughSPIsection.......................................... 47 • Added4-bitwordbullettotheWatchdogTokenRequestdefinitionlistintheWatchdog-Timer-RelatedSPIEvent Definitionssection................................................................................................................... 47 • Added32-bitwordbullettotheWatchdogTokenTimerRequestdefinitionlistintheWatchdog-Timer-Related SPIEventDefinitionssection...................................................................................................... 47 • AddedWatchdogToken-ResponseSequenceRunsectiontoreplacetheWatchdogTimerConfigurationfor QuestionandAnswerConfigurationsection..................................................................................... 48 • ChangedtheWDTTokenandResponseSequenceRunimageintheWatchdogToken-ResponseSequence Runsection .......................................................................................................................... 48 • Addedthe4-bitquestionparagraphtotheWatchdogTokenValueGeneration(orWatchdogQuestion Generation)section................................................................................................................. 49 10 RevisionHistory Copyright©2012–2014,TexasInstrumentsIncorporated SubmitDocumentationFeedback ProductFolderLinks:TPS65381-Q1
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