scope:

This standard defines interoperability guidelines for external power supplies used with portable computing devices that implement the IEC 62680-1-2: USB Power Delivery standard with the IEC 62680-1-3: USB Type-C connector standard. This document defines normative requirements for an EPS to ensure interoperability, in particular it specifies the data communicated from an EPS to a portable computing device (Figure 1). The scope does not apply to all aspects of an EPS. This document does not specify normative requirements for the portable computing device but provides recommendations for the behaviour of a portable computing device when used with an EPS compliant with this standard. Figure 1 - Scope of the Identification and Communication Method This document specifies the data objects used by a portable computing system utilizing IEC 62680-1-2 to understand the identity, design and performance characteristics, and operating status of an external power supply. The specification is applicable to external power supplies under 100 watts for portable computing devices, with a focus on power delivery application for notebook computers, tablets, smartphones and other related multimedia devices. This document relies on established mechanical and electrical specifications, and communication protocols established by IEC 62680-1-2 and IEC 62680-1-3 standards. This document proposes methods supported by IEC 62680-1-2, to mitigate problems caused by the connection of untested combinations of EPS and portable computing devices with the aim of improving consumer satisfaction. In addition this document provides interoperability guidelines for an EPS supporting charging using USB Type-C current when IEC 62680-1-2 functionality is not enabled. An EPS is expected to follow the applicable global standards and regulatory compliance requirements.