TPS65381-Q1 Multi-Rail Power Supply for Microcontrollers in Safety Critical Appl

101 Pages·2014·0.92 MB·English

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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
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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
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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
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• 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
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• 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
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• 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
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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
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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
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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
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