TPS25810 Charging Port Over USB Type-C - TI.com

1 1 SLVA768 March2016 SubmitDocumentationFeedbackCopyright 2016,TexasInstrumentsIncorporatedTPS2581 0 ChargingPort OverUSBType-CApple,iPhoneare registeredtrademarksof ,GalaxyS are registeredtrademarksof SamsungElectronicsCo., a trademarkof othertrademarksare the propertyof March2016 TPS25810 ChargingPortOverUSBType-C TPS25810is a USBType-Cdownstreamfacingport (DFP)controllerthat monitorsthe USBType-C configurationchannel(CC)linesto determinewhena USBdeviceis upstreamfacingport(UFP)deviceTypeC-to-Bd ongleis pluggedin, the portsupportsconnectionof Type-Breceptacledevicessuchas a mouse,smartphones,keyboards,externalhard drives,and so USB2 dataline (D+/D ), the TPS2544 USBchargingport controllercan beaddedto providethe electricalsignatureson D+/D to designsolutionwhichoffersfast chargingof popularmobilephones,tablets,and mediadevicesoverthe of Figures1 TPS25810 ChargingPort TPS2544(CDPMode)TestWithiPhone6,WithType C-to-BDongleConnectedtoDevice,ThenPlugin the TPS2544(CDPMode)TestWithiPhone6,WithType C-to-BDongleConnectedto Host,ThenPlugin the TPS2544(CDPMode)

2 TestWithGalaxyS6, WithTypeC-to-BDongleConnectedtoDeviceThe nPlugIn TPS2544(CDPMode)TestWithGalaxyS6, WithTypeC-to-BDongleConnectedtoHostThenP lugIn TPS2544(DCPAutoMode)TestWithiPhone6,With TypeC-to-BDongleConnectedtoDeviceThenPlu gIn TPS2544(DCPAutoMode)TestWithiPhone6,With TypeC-to-BDongleConnectedTOHostThenPlugI n TPS2544(DCPAutoMode)TestWithGalaxyS6, WithTypeC-to-BDongleConnectedTO DeviceThenPlugIn TPS2544(DCPAutoMode)TestWithGalaxyS6, WithTypeC-to-BDongleConnectedto HostThenPlugIn TPS2544(DCPAutoMode)TestWithHTCS ense,WithTypeC-to-BDongleConnectedto DeviceThenPlugIn TPS2544(DCPAutoMode)TestWithHTCS ense,WithTypeC-to-BDongleConnectedto HostThenPlugIn March2016 SubmitDocumentationFeedbackCopyright 2016,TexasInstrumentsIncorporatedTPS2581 0 ChargingPort OverUSBType-C12 TPS25810and TPS2544(DCPAutoMode)TestWithBold9000,Wit hTypeC-to-BDongleConnectedto DeviceThenPlugIn TPS2544(DCPAutoMode)TestWithBold9000,Wit hTypeC-to-BDongleConnectedto HostThenPlugIn of applicationreportpresentsthe designsolutionfor the TPS25810to offerfast chargingof popularmobilephones,tablets,and mediadevicesoverthe mouse,smartphones,keyboards,externalhard drives,and so forth,utilizethe supportType-Breceptacledeviceson the USBType-Cport,a TypeC-to-Bdonglemustbeconnectedin TypeC-to-Bdongleis pluggedinto the Type-Cport,the TPS25810broadcastscurrentcapabilityovert he CC currentcapabilityis not receivedby the Type-BreceptacledevicewhichmonitorsUSB2 dataline (D+/D ), leadingto the devicedrawing500 mAmaximumdefinedby USB2 or 900 mA for USB3.

3 This currentlevelhas becomeinsufficientfor manyhandsetsand personalmediaplayersthat requirea addingthe USBchargingport controllerlike the TPS2543,TPS2544,or TPS2546that all providethe electricalsignatureson D+/D to ,it allowshost and clientdevicestoacknowledgethe protocolhandshakeand drawadditionalcurrentbeyondthe 500 mA or 900 mAmaximumdefinedby USB2and supportof protocolhandshakeschargingdownstreamport (CDP)and dedicatedchargingport (DCP)are exploredby usingthe TPS2544as an examplein first two solutionshavesimilararchitecturesand use the UFPpin of the TPS25810to turn on and offan FET mustbe ratedat 30 V (VDSor VSDabsolutemaximum)in orderto handlethe high voltageof externalblockingMOSFET remainsoff, bydefault,and blocksany high voltageon VBUSin the eventof a MOSFET will only turn on, connectingthe OUTpin of the TPS25810to the VBUSpin of the Type-Cconnector,if thedeviceis CDPis a USBport that suppliesa minimumof A per port whilemaintainingUSB2 dataline (D+/D ) DCPonly providespowerbut doesnot supportdataconnectionto the DCPis identifiedbythe electricalcharacteristicsof its datalines,and in the DCPautostate,the devicechargedetectionstatemachineis activatedto selectivelyimplementchargingschemesinvol vedwith the shorted,divider1,divider2,and TPS2810datasheet(SLVSCR1), TPS2544datasheet(SLVSBU8), and the USBType-Cdocumentation( )

4 Are goodresourcesto havea generalunderstandingof beforereadingthis FC15 VD110 FR115 kW+ECHOSTINILIM_SELCTL3 CTL2 CTL1 ENDM_OUTDP_OUTTPS2544 OUTDM_INDP_INUSB Type-C March2016 SubmitDocumentationFeedbackCopyright 2016,TexasInstrumentsIncorporatedTPS2581 0 ChargingPort OverUSBType-C2 ImplementationThe operationof the chargingoverthe Type-Cport circuitpresentedin Figure1 dependson the TPS2544for providingthe electricalsignatureson D+/D to internalswitchof the TPS25810is connectedbetweenthe 5-V powersourceand the Type-C connectorVBUS,whilethe TPS2544internalswitchis not TPS25810 ChargingPortOverUSBType-CCircuitUtilizin gTPS2544 The TPS2544 OUTis connectedto the TPS25810EN to controlthe VBUS dischargefor DCP- Whena humaninterfacedevice(HID)suchas a mouseor keyboardis detected,thereis no outputdischargesincethe TPS2544overridesthe specificCTL pin changesbetweenthecontrolpin (CTL1 CTL3)settingsCDP(111)and DCPauto(011).

5 Therefore,keepingthe D+/D linesconnectedto the systemto supportthe mouseand the operationare describedin the This allowsthe TPS2544to selectivelyimplementchargingschemesinvol vedwith theShorted,Divider1,Divider2,and TPS2544internalswitchis not connectedin serieswith TPS25810becausethe RDS(on)of bothTP25810and TPS2544are too largeand violatethe no load currentis drawnfromthe TPS2544switch,thereis a limitationof no Divider2modesupportas > 750 mA is and R1 assistthe TPS25810with dischargeof the 10- F March2016 SubmitDocumentationFeedbackCopyright 2016,TexasInstrumentsIncorporatedTPS2581 0 ChargingPort OverUSBType-CVariouspopularsmartphonedev icesweretestedunderCDPand thereare two plug in sequences,the followingweretested:1. TypeC-to-Bdongleconnectedto the host,thenplug in the TypeC-to-Bdongleconnectedto the device,thenplug in the formercondition,the VOUT5 V is alreadyestablishedas TPS25810detectsUFPTypeC-to-Bdongle,while in the laterconditionthe VOUT5 V is max chargingcurrent(IOUT) consumedby the deviceis also measuredin the (CDP)ModeA CDPis a USBport that suppliesa minimumof A per providespowerand meetsUSB2 requirementsfor communicationis supported,and the hostcontrollermustbe activeto CDPfroman SDPis the host-chargehandshakinglogicthat identifiesthis port as a CDPis identifiableby a allowsfor additionalcurrentdrawby the the followingtest scheme,the TPS2544controlpin (CTL1-CTL3)settingsare programmedto testeddeviceswhichsupportCDPare Apple iPhone 6 and Samsung GalaxyS observedresultis that bothdevicessuccessfullydetectCDPmodeto drawover500.

6 D+, CH2:D , CH3:IOUT, CH4:VOUTF igure2. TPS25810and TPS2544(CDPMode)TestWithiPhone6,WithType C-to-BDongleConnectedto Device,ThenPlugin the March2016 SubmitDocumentationFeedbackCopyright 2016,TexasInstrumentsIncorporatedTPS2581 0 ChargingPort OverUSBType-CspacerspacerCH1:D+, CH2:D , CH3:IOUT, CH4:VOUTF igure3. TPS25810and TPS2544(CDPMode)TestWithiPhone6,WithType C-to-BDongleConnectedto Host,ThenPlugin the DevicespacerspacerCH1:D+, CH2:D , CH3:IOUT, CH4:VOUTF igure4. TPS25810and TPS2544(CDPMode)TestWithGalaxyS6,WithTyp eC-to-BDongleConnectedto DeviceThenPlugIn March2016 SubmitDocumentationFeedbackCopyright 2016,TexasInstrumentsIncorporatedTPS2581 0 ChargingPort OverUSBType-CspacerspacerCH1:D+, CH2:D , CH3:IOUT, CH4:VOUTF igure5. TPS25810and TPS2544(CDPMode)TestWithGalaxyS6,WithTyp eC-to-BDongleConnectedto HostThenPlugIn March2016 SubmitDocumentationFeedbackCopyright 2016,TexasInstrumentsIncorporatedTPS2581 0 ChargingPort (DCP)AutoModeA DCPonly providespowerbut doesnot supportdataconnectionto an the TPS2544 DCPA utostate,the devicechargedetectionstatemachineis activatedto selectivelyimplementchargingschemesinvol vedwith the Shorted,Divider1,Divider2,and ChineseTelecommunicationsIndustryStandar dYD/T1591-2009,whilethe employedto chargedevicesthat do not complywith the followingtest schemethe TPS2544controlpin (CTL1-CTL3)settingsare programmedto testeddevicesare AppleiPhone6(Divider1),SamsungGalaxyS6 ( ),HTCS ense(DCPshorted)and BlackberryBold9000(DCPshorted).

7 The observedresultis that bothdevicessuccessfullydetectCDPmodeto shownwith the Blackberrydevicetestwaveform,the VOUT5V is dischargedin orderfor the deviceto redetectthe new :D+, CH2:D , CH3:IOUT, CH4:VOUTF igure6. TPS25810and TPS2544(DCPAutoMode)TestWithiPhone6,With TypeC-to-BDongleConnectedto DeviceThenPlugIn March2016 SubmitDocumentationFeedbackCopyright 2016,TexasInstrumentsIncorporatedTPS2581 0 ChargingPort OverUSBType-CspacerspacerCH1:D+, CH2:D , CH3:IOUT, CH4:VOUTF igure7. TPS25810and TPS2544(DCPAutoMode)TestWithiPhone6,With TypeC-to-BDongleConnectedTO HostThenPlugIn DevicespacerspacerCH1:D+, CH2:D , CH3:IOUT, CH4:VOUTF igure8. TPS25810and TPS2544(DCPAutoMode)TestWithGalaxyS6,Wit hTypeC-to-BDongleConnectedTO DeviceThenPlugIn March2016 SubmitDocumentationFeedbackCopyright 2016,TexasInstrumentsIncorporatedTPS2581 0 ChargingPort OverUSBType-CspacerspacerCH1:D+, CH2:D , CH3:IOUT, CH4:VOUTF igure9.

8 TPS25810and TPS2544(DCPAutoMode)TestWithGalaxyS6,Wit hTypeC-to-BDongleConnectedto HostThenPlugIn DevicespacerspacerCH1:D+, CH2:D , CH3:IOUT, CH4:VOUTF igure10. TPS25810and TPS2544(DCPAutoMode)TestWithHTCS ense,WithTypeC-to-BDongleConnectedto DeviceThenPlugIn March2016 SubmitDocumentationFeedbackCopyright 2016,TexasInstrumentsIncorporatedTPS2581 0 ChargingPort OverUSBType-CspacerspacerCH1:D+, CH2:D , CH3:IOUT, CH4:VOUTF igure11. TPS25810and TPS2544(DCPAutoMode)TestWithHTCS ense,WithTypeC-to-BDongleConnectedto HostThenPlugIn DevicespacerspacerCH1:D+, CH2:D , CH3:IOUT, CH4:VOUTF igure12. TPS25810and TPS2544(DCPAutoMode)TestWithBold9000,Wit hTypeC-to-BDongleConnectedto DeviceThenPlugIn March2016 SubmitDocumentationFeedbackCopyright 2016,TexasInstrumentsIncorporatedTPS2581 0 ChargingPort OverUSBType-CspacerspacerCH1:D+, CH2:D , CH3:IOUT, CH4:VOUTF igure13. TPS25810and TPS2544(DCPAutoMode)TestWithBold9000,Wit hTypeC-to-BDongleConnectedto HostThenPlugIn March2016 SubmitDocumentationFeedbackCopyright 2016,TexasInstrumentsIncorporatedTPS2581 0 ChargingPort OverUSBType-C4 SummaryThe resultsare summarizedin Table1 for eachdevice,listingthe is seenthat by addingthe TPS2544to the TPS25810 ,largechargingcurrentscan be achievedon the TPS25810 USBType-CDFPC ontrollerand PowerSwitchwith LoadDetection(SLVSCR1) TPD1S414 USBC hargerOVPS witchwith ESDfor VBUS_CONPin(SLLSEH9) USBType-CDocumentation, its subsidiaries(TI)

9 Reservethe rightto makecorrections,enhancements,improvement sand otherchangesto its semiconductorproductsand servicesper JESD46,latestissue,and to discontinueany productor serviceper JESD48, latestrelevantinformationbeforeplacingor dersand shouldverifythat suchinformationis semiconductorproducts(alsoreferredto hereinas components ) are sold subjectto TI s termsand conditionsof salesuppliedat the time of warrantsperformanceof its componentsto the specificationsapplicableat the time of sale,in accordancewith the warrantyin TI s termsand conditionsof sale of otherqualitycontroltechniquesare usedto the extentTI deemsnecessaryto supportthis applicablelaw, testingof all parametersof eachcomponentis not assumesno liabilityfor applicationsassistanceor the designof Buyers responsiblefor theirproductsandapplicationsusingTI minimizethe risksassociatedwith Buyers productsand applications,Buyersshouldprovideadequate designand doesnot warrantor representthat any license,eitherexpressor implied,is grantedunderany patentright,copyright,maskworkright,orot herintellectualpropertyrightrelatingto any combination,machine.

10 Or processin whichTI componentsor servicesare TI regardingthird-partyproductsor servicesdoesnot constitutea licenseto use suchproductsor servicesor a of suchinformationmay requirea licensefroma thirdpartyunderthe patentsor otherintellectualpropertyof thethirdparty,or a licensefromTI underthe patentsor otherintellectualpropertyof significantportionsof TI informationin TI databooksor datasheetsis permissibleonly if reproductionis withoutalterationand is accompaniedby all associatedwarranties,conditions,limitati ons,and is not responsibleor liablefor thirdpartiesmay be subjectto TI componentsor serviceswith statementsdifferentfromor beyondthe parametersstatedby TI for that componentor servicevoidsall expressand any impliedwarrantiesfor the associatedTI componentor serviceand is an unfairand is not responsibleor liablefor any agreesthat it is solelyresponsiblefor compliancewith all legal,regulatoryand safety-relatedrequirementsconcerningits products,and any use of TI componentsin its applications,notwithstandingany applications-relatedinformationor supportthat may be providedby TI.