69.444444yy.com

2013-2014MicrochipTechnologyInc.
DS20005167C-page1MCP2561/2Features:Supports1Mb/sOperationImplementsISO-11898-2andISO-11898-5StandardPhysicalLayerRequirementsVeryLowStandbyCurrent(5A,typical)VIOSupplyPintoInterfaceDirectlytoCANControllersandMicrocontrollerswith1.
8Vto5.
5VI/OSPLITOutputPintoStabilizeCommonModeinBiasedSplitTerminationSchemesCANBusPinsareDisconnectedwhenDeviceisUnpowered:-AnUnpoweredNodeorBrown-OutEventwillNotLoadtheCANBusDetectionofGroundFault:-PermanentDominantDetectiononTXD-PermanentDominantDetectiononBusPower-onResetandVoltageBrown-OutProtectiononVDDPinProtectionAgainstDamageDuetoShort-CircuitConditions(PositiveorNegativeBatteryVoltage)ProtectionAgainstHigh-VoltageTransientsinAutomotiveEnvironmentsAutomaticThermalShutdownProtectionSuitablefor12Vand24VSystemsMeetsorexceedsstringentautomotivedesignrequirementsincluding"HardwareRequirementsforLIN,CANandFlexRayInterfacesinAutomo-tiveApplications",Version1.
3,May2012High-NoiseImmunityDuetoDifferentialBusImplementationHighElectrostaticDischarge(ESD)ProtectiononCANHandCANL,meetingtheIEC61000-4-2upto±14kVAvailableinPDIP-8L,SOIC-8Land3x3DFN-8LTemperatureranges:-Extended(E):-40°Cto+125°C-High(H):-40°Cto+150°CDescription:TheMCP2561/2isaMicrochipTechnologyInc.
secondgenerationhigh-speedCANtransceiver.
ItservesasaninterfacebetweenaCANprotocolcontrollerandthephysicaltwo-wireCANbus.
Thedevicemeetstheautomotiverequirementsforhigh-speed(upto1Mb/s),lowquiescentcurrent,electromagneticcompatibility(EMC)andelectrostaticdischarge(ESD).
PackageTypesMCP2562PDIP,SOICVDDVSSRXDCANHCANL12348765VIOSTBYTXDMCP2561PDIP,SOICVDDVSSRXDCANHCANL12348765SPLITSTBYTXDMCP25613x3DFN*VDDVSSRXDCANHCANL12348765SPLITSTBYTXDEP9MCP25623x3DFN*VDDVSSRXDCANHCANL12348765VIOSTBYTXDEP9*IncludesExposedThermalPad(EP);seeTable1-2.
MCP2561/2FamilyMembersDeviceFeatureDescriptionMCP2561SplitpinCommonmodestabilizationMCP2562VIOpinInternallevelshifterondigitalI/OpinsNote:Fororderinginformation,seethe"ProductIdentificationSystem"sectiononpage27.
High-SpeedCANTransceiverMCP2561/2DS20005167C-page22013-2014MicrochipTechnologyInc.
BlockDiagramNote1:Thereisonlyonereceiverimplemented.
ThereceivercanoperateinLow-PowerorHigh-Speedmode.
2:OnlyMCP2561hastheSPLITpin.
3:OnlyMCP2562hastheVIOpin.
InMCP2561,thesupplyforthedigitalI/OisinternallyconnectedtoVDD.
VDDCANHCANLTXDRXDDriverandSlopeControlThermalProtectionPORUVLODigitalI/OSupplyVIO(3)VSSSTBYPermanentDominantDetectVIOVIOModeControlVDD/2SPLIT(2)Wake-UpFilterCANHCANLCANHCANLReceiverLP_RX(1)HS_RX2013-2014MicrochipTechnologyInc.
DS20005167C-page3MCP2561/21.
0DEVICEOVERVIEWTheMCP2561/2isahigh-speedCAN,fault-tolerantdevicethatservesastheinterfacebetweenaCANprotocolcontrollerandthephysicalbus.
TheMCP2561/2deviceprovidesdifferentialtransmitandreceivecapabilityfortheCANprotocolcontroller,andisfullycompatiblewiththeISO-11898-2andISO-11898-5standards.
Itwilloperateatspeedsofupto1Mb/s.
Typically,eachnodeinaCANsystemmusthaveadevicetoconvertthedigitalsignalsgeneratedbyaCANcontrollertosignalssuitablefortransmissionoverthebuscabling(differentialoutput).
ItalsoprovidesabufferbetweentheCANcontrollerandthehigh-voltagespikesthatcanbegeneratedontheCANbusbyoutsidesources.
1.
1ModeControlBlockTheMCP2561/2supportstwomodesofoperation:NormalStandbyThesemodesaresummarizedinTable1-1.
1.
1.
1NORMALMODENormalmodeisselectedbyapplyingalow-leveltotheSTBYpin.
Thedriverblockisoperationalandcandrivethebuspins.
TheslopesoftheoutputsignalsonCANHandCANLareoptimizedtoproduceminimalelectromagneticemissions(EME).
Thehigh-speeddifferentialreceiverisactive.
1.
1.
2STANDBYMODEThedevicemaybeplacedinStandbymodebyapplyingahigh-leveltotheSTBYpin.
InStandbymode,thetransmitterandthehigh-speedpartofthereceiverareswitchedofftominimizepowerconsumption.
Thelow-powerreceiverandthewake-upfilterblocksareenabledinordertomonitorthebusforactivity.
Thereceivepin(RXD)willshowadelayedrepresentationoftheCANbus,duetothewake-upfilter.
TheCANcontrollergetsinterruptedbyanegativeedgeontheRXDpin(dominantstateontheCANbus).
TheCANcontrollermustputtheMCP2561/2backintoNormalmodeusingtheSTBYpin,inordertoenablehigh-speeddatacommunication.
TheCANbuswake-upfunctionrequiresbothsupplyvoltages,VDDandVIO,tobeinvalidrange.
1.
2TransmitterFunctionTheCANbushastwostates:DominantandRecessive.
ADominantstateoccurswhenthedifferentialvoltagebetweenCANHandCANLisgreaterthanVDIFF(D)(I).
ARecessivestateoccurswhenthedifferentialvoltageislessthanVDIFF(R)(I).
TheDominantandRecessivestatescorrespondtotheLowandHighstateoftheTXDinputpin,respectively.
However,aDominantstateinitiatedbyanotherCANnodewilloverrideaRecessivestateontheCANbus.
1.
3ReceiverFunctionInNormalmode,theRXDoutputpinreflectsthediffer-entialbusvoltagebetweenCANHandCANL.
TheLowandHighstatesoftheRXDoutputpincorrespondtotheDominantandRecessivestatesoftheCANbus,respectively.
1.
4InternalProtectionCANHandCANLareprotectedagainstbatteryshort-circuitsandelectricaltransientsthatcanoccurontheCANbus.
ThisfeaturepreventsdestructionofthetransmitteroutputstageduringsuchaFaultcondition.
Thedeviceisfurtherprotectedfromexcessivecurrentloadingbythermalshutdowncircuitrythatdisablestheoutputdriverswhenthejunctiontemperatureexceedsanominallimitof+175°C.
Allotherpartsofthechipremainoperational,andthechiptemperatureislow-eredduetothedecreasedpowerdissipationinthetransmitteroutputs.
Thisprotectionisessentialtoprotectagainstbuslineshort-circuit-induceddamage.
TABLE1-1:MODESOFOPERATIONModeSTBYPinRXDPinLOWHIGHNormalLOWBusisdominantBusisrecessiveStandbyHIGHWake-uprequestisdetectedNowake-uprequestdetectedMCP2561/2DS20005167C-page42013-2014MicrochipTechnologyInc.
1.
5PermanentDominantDetectionTheMCP2561/2devicepreventstwoconditions:PermanentdominantconditiononTXDPermanentdominantconditiononthebusInNormalmode,iftheMCP2561/2detectsanextendedLowstateontheTXDinput,itwilldisabletheCANHandCANLoutputdriversinordertopreventthecorruptionofdataontheCANbus.
ThedriverswillremaindisableduntilTXDgoesHigh.
InStandbymode,iftheMCP2561/2detectsanextendeddominantconditiononthebus,itwillsettheRXDpintoRecessivestate.
ThisallowstheattachedcontrollertogotoLow-Powermodeuntilthedominantissueiscorrected.
RXDislatchedHighuntilaRecessivestateisdetectedonthebus,andthewake-upfunctionisenabledagain.
Bothconditionshaveatime-outof1.
25ms(typical).
Thisimpliesamaximumbittimeof69.
44s(14.
4kHz),allowingupto18consecutivedominantbitsonthebus.
1.
6Power-OnReset(POR)andUndervoltageDetectionTheMCP2561/2hasundervoltagedetectiononbothsupplypins:VDDandVIO.
Typicalundervoltagethresholdsare1.
2VforVIOand4VforVDD.
Whenthedeviceispoweredon,CANHandCANLremaininahigh-impedancestateuntilbothVDDandVIOexceedtheirundervoltagelevels.
Oncepoweredon,CANHandCANLwillenterahigh-impedancestateifthevoltagelevelatVDDdropsbelowtheundervoltagelevel,providingvoltagebrown-outprotectionduringnormaloperation.
InNormalmode,thereceiveroutputisforcedtoRecessivestateduringanundervoltageconditiononVDD.
InStandbymode,thelow-powerreceiverisonlyenabledwhenbothVDDandVIOsupplyvoltagesriseabovetheirrespectiveundervoltagethresholds.
Oncethesethresholdvoltagesarereached,thelow-powerreceiverisnolongercontrolledbythePORcomparatorandremainsoperationaldowntoabout2.
5VontheVDDsupply(MCP2561/2).
TheMCP2562transfersdatatotheRXDpindownto1.
8VontheVIOsupply.
1.
7PinDescriptionsTable1-2describesthepinout.
TABLE1-2:MCP2561/2PINOUTMCP25613x3DFNMCP2561PDIP,SOICMCP25623x3DFNMCP2562PDIP,SOICSymbolPinFunction1111TXDTransmitDataInput2222VSSGround3333VDDSupplyVoltage4444RXDReceiveDataOutput55——SPLITCommonModeStabilization–MCP2561only——55VIODigitalI/OSupplyPin–MCP2562only6666CANLCANLow-LevelVoltageI/O7777CANHCANHigh-LevelVoltageI/O8888STBYStandbyModeInput9—9—EPExposedThermalPad2013-2014MicrochipTechnologyInc.
DS20005167C-page5MCP2561/21.
7.
1TRANSMITTERDATAINPUTPIN(TXD)TheCANtransceiverdrivesthedifferentialoutputpinsCANHandCANLaccordingtoTXD.
ItisusuallyconnectedtothetransmitterdataoutputoftheCANcontrollerdevice.
WhenTXDisLow,CANHandCANLareintheDominantstate.
WhenTXDisHigh,CANHandCANLareintheRecessivestate,providedthatanotherCANnodeisnotdrivingtheCANbuswithaDominantstate.
TXDisconnectedtoaninternalpull-upresistor(nominal33k)toVDDorVIO,intheMCP2561orMCP2562,respectively.
1.
7.
2GROUNDSUPPLYPIN(VSS)Groundsupplypin.
1.
7.
3SUPPLYVOLTAGEPIN(VDD)Positivesupplyvoltagepin.
Suppliestransmitterandreceiver,includingthewake-upreceiver.
1.
7.
4RECEIVERDATAOUTPUTPIN(RXD)RXDisaCMOS-compatibleoutputthatdrivesHighorLowdependingonthedifferentialsignalsontheCANHandCANLpins,andisusuallyconnectedtothereceiverdatainputoftheCANcontrollerdevice.
RXDisHighwhentheCANbusisRecessive,andLowintheDominantstate.
RXDissuppliedbyVDDorVIO,intheMCP2561orMCP2562,respectively.
1.
7.
5SPLITPIN(MCP2561ONLY)ReferenceVoltageOutput(definedasVDD/2).
ThepinisonlyactiveinNormalmode.
InStandbymode,orwhenVDDisoff,SPLITfloats.
1.
7.
6VIOPIN(MCP2562ONLY)SupplyfordigitalI/Opins.
IntheMCP2561,thesupplyforthedigitalI/O(TXD,RXDandSTBY)isinternallyconnectedtoVDD.
1.
7.
7CANLOWPIN(CANL)TheCANLoutputdrivestheLowsideoftheCANdifferentialbus.
Thispinisalsotiedinternallytothereceiveinputcomparator.
CANLdisconnectsfromthebuswhenMCP2561/2isnotpowered.
1.
7.
8CANHIGHPIN(CANH)TheCANHoutputdrivesthehigh-sideoftheCANdifferentialbus.
Thispinisalsotiedinternallytothereceiveinputcomparator.
CANHdisconnectsfromthebuswhenMCP2561/2isnotpowered.
1.
7.
9STANDBYMODEINPUTPIN(STBY)ThispinselectsbetweenNormalorStandbymode.
InStandbymode,thetransmitter,highspeedreceiverandSPLITareturnedoff,onlythelowpowerreceiverandwake-upfilterareactive.
STBYisconnectedtoaninternalMOSpull-upresistortoVDDorVIO,intheMCP2561orMCP2562,respectively.
ThevalueoftheMOSpull-upresistordependsonthesupplyvoltage.
Typicalvaluesare660kfor5V,1.
1Mfor3.
3Vand4.
4Mfor1.
8V1.
7.
10EXPOSEDTHERMALPAD(EP)ItisrecommendedtoconnectthispadtoVSStoenhanceelectromagneticimmunityandthermalresistance.
MCP2561/2DS20005167C-page62013-2014MicrochipTechnologyInc.
1.
8TypicalApplicationsFIGURE1-1:MCP2561WITHSPLITPINFIGURE1-2:MCP2562WITHVIOPIN5VLDOVDDVDDTXDRXDSTBYCANTXCANRXRBXVSSVSSPICMCUMCP2561SPLITCANHCANL4700pF0.
1μFCANHCANL60:60:300:Optional(1)VBATNote1:Optionalresistortoallowcommunicationduringbusfailure(CANLshortedtoground).
1.
8VLDOVDDVDDTXDRXDSTBYCANTXCANRXRBXVSSVssPICMCUMCP2562CANHCANL5VLDOVIO0.
1μFCANHCANL0.
1μF120:VBAT2013-2014MicrochipTechnologyInc.
DS20005167C-page7MCP2561/22.
0ELECTRICALCHARACTERISTICS2.
1TermsandDefinitionsAnumberoftermsaredefinedinISO-11898thatareusedtodescribetheelectricalcharacteristicsofaCANtransceiverdevice.
Thesetermsanddefinitionsaresummarizedinthissection.
2.
1.
1BUSVOLTAGEVCANLandVCANHdenotethevoltagesofthebuslinewiresCANLandCANHrelativetogroundofeachindividualCANnode.
2.
1.
2COMMONMODEBUSVOLTAGERANGEBoundaryvoltagelevelsofVCANLandVCANHwithrespecttoground,forwhichproperoperationwilloccur,ifuptothemaximumnumberofCANnodesareconnectedtothebus.
2.
1.
3DIFFERENTIALINTERNALCAPACITANCE,CDIFF(OFACANNODE)CapacitanceseenbetweenCANLandCANHduringtheRecessivestate,whentheCANnodeisdisconnectedfromthebus(seeFigure2-1).
2.
1.
4DIFFERENTIALINTERNALRESISTANCE,RDIFF(OFACANNODE)ResistanceseenbetweenCANLandCANHduringtheRecessivestatewhentheCANnodeisdisconnectedfromthebus(seeFigure2-1).
2.
1.
5DIFFERENTIALVOLTAGE,VDIFF(OFCANBUS)Differentialvoltageofthetwo-wireCANbus,valueVDIFF=VCANH–VCANL.
2.
1.
6INTERNALCAPACITANCE,CIN(OFACANNODE)CapacitanceseenbetweenCANL(orCANH)andgroundduringtheRecessivestate,whentheCANnodeisdisconnectedfromthebus(seeFigure2-1).
2.
1.
7INTERNALRESISTANCE,RIN(OFACANNODE)ResistanceseenbetweenCANL(orCANH)andgroundduringtheRecessivestate,whentheCANnodeisdisconnectedfromthebus(seeFigure2-1).
FIGURE2-1:PHYSICALLAYERDEFINITIONSRINRINRDIFFCINCINCDIFFCANLCANHGROUNDECUMCP2561/2DS20005167C-page82013-2014MicrochipTechnologyInc.
AbsoluteMaximumRatingsVDD.
7.
0VVIO.
7.
0VDCVoltageatTXD,RXD,STBYandVSS.
0.
3VtoVIO+0.
3VDCVoltageatCANH,CANLandSPLIT58Vto+58VTransientVoltageonCANH,CANL(ISO-7637)(Figure2-5)150Vto+100VStoragetemperature55°Cto+150°COperatingambienttemperature40°Cto+150°CVirtualJunctionTemperature,TVJ(IEC60747-1)40°Cto+190°CSolderingtemperatureofleads(10seconds)300°CESDprotectiononCANHandCANLpinsforMCP2561(IEC61000-4-2)14kVESDprotectiononCANHandCANLpinsforMCP2562(IEC61000-4-2)8kVESDprotectiononCANHandCANLpins(IEC801;HumanBodyModel)8kVESDprotectiononallotherpins(IEC801;HumanBodyModel)4kVESDprotectiononallpins(IEC801;MachineModel)300VESDprotectiononallpins(IEC801;ChargeDeviceModel)750VNOTICE:Stressesabovethoselistedunder"Maximumratings"maycausepermanentdamagetothedevice.
Thisisastressratingonlyandfunctionaloperationofthedeviceatthoseoranyotherconditionsabovethoseindicatedintheoperationallistingsofthisspecificationisnotimplied.
Exposuretomaximumratingconditionsforextendedperiodsmayaffectdevicereliability.
2013-2014MicrochipTechnologyInc.
DS20005167C-page9MCP2561/22.
2DCCharacteristicsElectricalCharacteristics:Extended(E):TAMB=-40°Cto+125°CandHigh(H):TAMB=-40°Cto+150°C;VDD=4.
5Vto5.
5V,VIO=1.
8Vto5.
5V(Note2),RL=60;unlessotherwisespecified.
CharacteristicSym.
Min.
Typ.
Max.
UnitsConditionsSUPPLYVDDPinVoltageRangeVDD4.
5—5.
5SupplyCurrentIDD—510mARecessive;VTXD=VDD—4570Dominant;VTXD=0VStandbyCurrentIDDS—515AMCP2561—515MCP2562;IncludesIIOHighLevelofthePORComparatorVPORH3.
8—4.
3VLowLevelofthePORComparatorVPORL3.
4—4.
0VHysteresisofPORComparatorVPORD0.
3—0.
8VVIOPinDigitalSupplyVoltageRangeVIO1.
8—5.
5VSupplyCurrentonVIOIIO—430ARecessive;VTXD=VIO—85500Dominant;VTXD=0VStandbyCurrentIDDS—0.
31A(Note1)UndervoltagedetectiononVIOVUVD(IO)—1.
2—V(Note1)BUSLINE(CANH;CANL)TRANSMITTERCANH;CANL:RecessiveBusOutputVoltageVO(R)2.
00.
5VDD3.
0VVTXD=VDD;NoloadCANH;CANL:BusOutputVoltageinStandbyVO(S)-0.
10.
0+0.
1VSTBY=VTXD=VDD;NoloadRecessiveOutputCurrentIO(R)-5—+5mA-24V3',3@1RWHV3LQYLVXDOLQGH[IHDWXUHPD\YDU\EXWPXVWEHORFDWHGZLWKWKHKDWFKHGDUHD6LJQLILFDQW&KDUDFWHULVWLF'LPHQVLRQV'DQG(GRQRWLQFOXGHPROGIODVKRUSURWUXVLRQV0ROGIODVKRUSURWUXVLRQVVKDOOQRWH[FHHGSHUVLGH'LPHQVLRQLQJDQGWROHUDQFLQJSHU$60(62,&@1RWH)RUWKHPRVWFXUUHQWSDFNDJHGUDZLQJVSOHDVHVHHWKH0LFURFKLS3DFNDJLQJ6SHFLILFDWLRQORFDWHGDWKWWSZZZPLFURFKLSFRPSDFNDJLQJ2013-2014MicrochipTechnologyInc.
DS20005167C-page25MCP2561/2APPENDIXA:REVISIONHISTORYRevisionC(July2014)Thefollowingisthelistofmodifications:1.
AddedreferencestoISO-11898-2throughoutthedocument.
2.
UpdatedSection1.
1.
2"StandbyMode".
DescribedtransitionfromStandbytoNormalmode.
Emphasizedthatwake-uponCANbusrequiresbothVDDandVIO.
3.
ExplainedthatPORandBrown-outarelimitedtoVDDpininSection1.
6"Power-OnReset(POR)andUndervoltageDetection".
4.
UpdatedSection2.
2"DCCharacteristics".
ClarifiedRL,addedCANH/CANLShortCircuitspecificationfor5Vandroomtemperature.
5.
Minortypographicalcorrections.
RevisionB(March2013)UpdatedtheMCP2561/2FamilyMemberstableonpage1.
RevisionA(March2013)OriginalReleaseofthisDocument.
MCP2561/2DS20005167C-page262013-2014MicrochipTechnologyInc.
NOTES:2013-2014MicrochipTechnologyInc.
DS20005167C-page27MCP2561/2PRODUCTIDENTIFICATIONSYSTEMToorderorobtaininformation,e.
g.
,onpricingordelivery,refertothefactoryorthelistedsalesoffice.
PARTNO.
-X/XXPackageTemperatureRangeDeviceDevice:MCP2561:High-SpeedCANTransceiverwithSPLITMCP2561T:High-SpeedCANTransceiverwithSPLIT(TapeandReel)(DFNandSOIConly)MCP2562:High-SpeedCANTransceiverwithVIOMCP2562T:High-SpeedCANTransceiverwithVIO(TapeandReel)(DFNandSOIConly)TemperatureRange:E=-40°Cto+125°C(Extended)H=-40°Cto+150°C(High)Package:MF=PlasticDualFlat,NoLeadPackage-3x3x0.
9mmBody,8-leadP=PlasticDualIn-Line-300milBody,8-leadSN=PlasticSmallOutline-Narrow,3.
90mmBody,8-leadExamples:a)MCP2561-E/MF:ExtendedTemperature,8LD3x3DFNpackageb)MCP2561T-E/MF:TapeandReel,ExtendedTemperature,8LD3x3DFNpackagec)MCP2561-E/P:ExtendedTemperature,8LDPDIPpackaged)MCP2561-E/SN:ExtendedTemperature,8LDSOICpackagee)MCP2561T-E/SN:TapeandReel,ExtendedTemperature,8LDSOICpackagea)MCP2561-H/MF:HighTemperature,8LD3x3DFNpackageb)MCP2561T-H/MF:TapeandReel,HighTemperature,8LD3x3DFNpackagec)MCP2561-H/P:HighTemperature,8LDPDIPpackaged)MCP2561-H/SN:HighTemperature,8LDSOICpackagee)MCP2561T-H/SN:TapeandReel,HighTemperature,8LDSOICpackageMCP2561/2DS20005167C-page282013-2014MicrochipTechnologyInc.
NOTES:2013-2014MicrochipTechnologyInc.
DS20005167C-page29Informationcontainedinthispublicationregardingdeviceapplicationsandthelikeisprovidedonlyforyourconvenienceandmaybesupersededbyupdates.
Itisyourresponsibilitytoensurethatyourapplicationmeetswithyourspecifications.
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Microchipdisclaimsallliabilityarisingfromthisinformationanditsuse.
UseofMicrochipdevicesinlifesupportand/orsafetyapplicationsisentirelyatthebuyer'srisk,andthebuyeragreestodefend,indemnifyandholdharmlessMicrochipfromanyandalldamages,claims,suits,orexpensesresultingfromsuchuse.
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ISBN:978-1-63276-378-5NotethefollowingdetailsofthecodeprotectionfeatureonMicrochipdevices:MicrochipproductsmeetthespecificationcontainedintheirparticularMicrochipDataSheet.
Microchipbelievesthatitsfamilyofproductsisoneofthemostsecurefamiliesofitskindonthemarkettoday,whenusedintheintendedmannerandundernormalconditions.
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Allofthesemethods,toourknowledge,requireusingtheMicrochipproductsinamanneroutsidetheoperatingspecificationscontainedinMicrochip'sDataSheets.
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