Transcription of USB PD Power Negotiations - TI.com
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USB PD Power Negotiations - TI.com
1 SLVA842 November2016 SubmitDocumentationFeedbackCopyright 2016,TexasInstrumentsIncorporatedUSBPD PowerNegotiationsApplicationReportSLVA84 2 November2016 USBPD PowerNegotiationsABSTRACTThis documentdescribesthe PowerDelivery(PD)contractnegotiationin USBType-Cconnectionsper theUSB-IFPD specification,and its implementationusingTexasInstrumentsTPS65 982 USBType-CandUSBPD is requiredin USBType-Csystemsfor powerlevelsabove15 W (5 V at 3 A)up to 100 W (20 V at 5 A) accordingto the digitalcommunicationbetweenthe transmitterand receiverendsof a connectionsupportUSBPD, the flow ofUSBPD powernegotiation,as wellas the procedurefor implementinganddebuggingUSBPD negotiationsusingthe TPS65982deviceand TPS65982deviceis referredto throughoutthis applicationreport,but the documentalso appliestothe TPS65981and TPS65986 USBType-Cand USBPD Sinkand Specificationfor Specificationfor SinkCapabilities(PDOs).. Specificationfor Sinkand TraceAnalysisof Sinkand SourceCapabilitiesand SinkCapabilitiesto NegotiatePowerBasedon SystemInformationto PDO1 AcceptedWithno PDO3 AcceptedWithCapabilityMismatch= Rx SinkCapabilitiesRegister(0x31)Readsall Zeros(0).
SLVA842–November 2016 1 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated USB PD Power Negotiations Application Report
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