IEC 62680-1-2:2019

IEC 62680-1-2 ®
Edition 4.0 2019-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Universal serial bus interfaces for data and power
Part 1-2: Common components – USB Power Delivery specification

Interfaces de bus universel en série pour les données et l'alimentation électrique
Partie 1-2: Composants communs – Spécification de l'alimentation électrique
par port USB
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IEC 62680-1-2 ®
Edition 4.0 2019-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Universal serial bus interfaces for data and power

Part 1-2: Common components – USB Power Delivery specification

Interfaces de bus universel en série pour les données et l'alimentation électrique

Partie 1-2: Composants communs – Spécification de l'alimentation électrique

par port USB
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.220; 33.120; 35.200 ISBN 978-2-8322-7646-4

– 2 – IEC 62680-1-2:2019
© USB IF:2018
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
UNIVERSAL SERIAL BUS INTERFACES FOR DATA AND POWER

Part 1-2: Common components – USB Power Delivery specification

FOREWORD
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IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 62680-1-2 has been prepared by technical area 18: Multimedia home
systems and applications for end-user networks, of IEC technical committee 100: Audio, video and
multimedia systems and equipment.
The text of this standard was prepared by the USB Implementers Forum (USB-IF). The structure and
editorial rules used in this publication reflect the practice of the organization which submitted it.
The text of this International Standard is based on the following documents:
CDV Report on voting
100/3189/CDV 100/3251/RVC
Full information on the voting for the approval of this International Standard can be found in the
report on voting indicated in the above table.

© USB IF:2018
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.
– 4 – IEC 62680-1-2:2019
© USB IF:2018
INTRODUCTION
The IEC 62680 series is based on a series of specifications that were originally developed by the
USB Implementers Forum (USB-IF). These specifications were submitted to the IEC under the
auspices of a special agreement between the IEC and the USB-IF.
This standard is the USB-IF publication Universal Serial Bus Power Delivery Specification Revision
3.0, Version 1.2.
The USB Implementers Forum, Inc.(USB-IF) is a non-profit corporation founded by the group of
companies that developed the Universal Serial Bus specification. The USB-IF was formed to provide
a support organization and forum for the advancement and adoption of Universal Serial Bus
technology. The Forum facilitates the development of high-quality compatible USB peripherals
(devices), and promotes the benefits of USB and the quality of products that have passed
compliance testing.
ANY USB SPECIFICATIONS ARE PROVIDED TO YOU "AS IS", WITH NO WARRANTIES
WHATSOEVER, INCLUDING ANY WARRANTY OF MERCHANTABILITY, NON-INFRINGEMENT,
OR FITNESS FOR ANY PARTICULAR PURPOSE. THE USB IMPLEMENTERS FORUM AND THE
AUTHORS OF ANY USB SPECIFICATIONS DISCLAIM ALL LIABILITY, INCLUDING LIABILITY
FOR INFRINGEMENT OF ANY PROPRIETARY RIGHTS, RELATING TO USE OR
IMPLEMENTATION OR INFORMATION IN THIS SPECIFICAITON.
THE PROVISION OF ANY USB SPECIFICATIONS TO YOU DOES NOT PROVIDE YOU WITH ANY
LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL
PROPERTY RIGHTS.
Entering into USB Adopters Agreements may, however, allow a signing company to participate in a
reciprocal, RAND-Z licensing arrangement for compliant products. For more information, please see:
https://www.usb.org/documents
IEC DOES NOT TAKE ANY POSITION AS TO WHETHER IT IS ADVISABLE FOR YOU TO ENTER
INTO ANY USB ADOPTERS AGREEMENTS OR TO PARTICIPATE IN THE USB IMPLEMENTERS
FORUM.”
© USB IF:2018
Universal Serial Bus
Power Delivery Specification
Revision:  3.0
Version:  1.2
Release date: 21 June 2018
– 6 – IEC 62680-1-2:2019
© USB IF:2018
LIMITED COPYRIGHT LICENSE
THE USB 3.0 PROMOTERS GRANT A CONDITIONAL COPYRIGHT LICENSE UNDER THE
COPYRIGHTS EMBODIED IN THE USB POWER DELIVERY SPECIFICATION TO USE AND
REPRODUCE THE SPECIFICATION FOR THE SOLE PURPOSE OF, AND SOLELY TO THE EXTENT
NECESSARY FOR, EVALUATING WHETHER TO IMPLEMENT THE SPECIFICATION IN PRODUCTS
THAT WOULD COMPLY WITH THE SPECIFICATION. WITHOUT LIMITING THE FOREGOING, USE
THE OF SPECIFICATION FOR THE PURPOSE OF FILING OR MODIFYING ANY PATENT
APPLICATION TO TARGET THE SPECIFICATION OR USB COMPLIANT PRODUCTS IS NOT
AUTHORIZED. EXCEPT FOR THIS EXPRESS COPYRIGHT LICENSE, NO OTHER RIGHTS OR
LICENSES ARE GRANTED, INCLUDING WITHOUT LIMITATION ANY PATENT LICENSES. IN ORDER
TO OBTAIN ANY ADDITIONALY INTELLECTUAL PROPERTY LICENSES OR LICENSING
COMMITMENTS ASSOCIATED WITH THE SPECIFICATION A PARTY MUST EXECUTE THE USB 3.0
ADOPTERS AGREEMENT. NOTE: BY USING THE SPECIFICATION, YOU ACCEPT THESE LICENSE
TERMS ON YOUR OWN BEHALF AND, IN THE CASE WHERE YOU ARE DOING THIS AS AN
EMPLOYEE, ON BEHALF OF YOUR EMPLOYER.
INTELLECTUAL PROPERTY DISCLAIMER
THIS SPECIFICATION IS PROVIDED TO YOU “AS IS” WITH NO WARRANTIES WHATSOEVER,
INCLUDING ANY WARRANTY OF MERCHANTABILITY, NON-INFRINGEMENT, OR FITNESS FOR
ANY PARTICULAR PURPOSE. THE AUTHORS OF THIS SPECIFICATION DISCLAIM ALL LIABILITY,
INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PROPRIETARY RIGHTS, RELATING TO USE
OR IMPLEMENTATION OF INFORMATION IN THIS SPECIFICATION. THE PROVISION OF THIS
SPECIFICATION TO YOU DOES NOT PROVIDE YOU WITH ANY LICENSE, EXPRESS OR IMPLIED, BY
ESTOPPEL OR OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS.
Please send comments via electronic mail to techsup@usb.org
For industry information, refer to the USB Implementers Forum web page at
http://www.usb.org
All product names are trademarks, registered trademarks, or service marks of their respective
owners.
Corporation, Microsoft Corporation, Renesas, STMicroelectronics, and Texas Instruments.

All rights reserved.
© USB IF:2018
Chairs
Alvin Cox Cabling Sub-Chair
Bob Dunstan Specification Chair/Protocol Subgroup Chair
Deric Waters PHY Chair
Ed Berrios Power Supply Chair
Rahman Ismail System Policy Chair
Richard Petrie Specification Chair/Device Policy Chair
Editors
Bob Dunstan
Richard Petrie
Contributors
– 8 – IEC 62680-1-2:2019
© USB IF:2018
Charles Wang ACON, Advanced-Connectek, Inc. Sathish Kumar Cadence Design Systems, Inc.
Ganesan
Conrad Choy ACON, Advanced-Connectek, Inc.
Alessandro Canova Tech
Dennis Chuang ACON, Advanced-Connectek, Inc.
Ingrassia
Steve Sedio ACON, Advanced-Connectek, Inc.
Andrea Colognese Canova Tech
Sunney Yang ACON, Advanced-Connectek, Inc.
Antonio Orzelli Canova Tech
Vicky Chuang ACON, Advanced-Connectek, Inc.
Davide Ghedin Canova Tech
Joseph Scanlon Advanced Micro Devices
Matteo Casalin Canova Tech
Caspar Lin Allion Labs, Inc.
Michael Marioli Canova Tech
Casper Lee Allion Labs, Inc.
Nicola Canova Tech
Danny Shih Allion Labs, Inc.
Scantamburlo
Howard Chang Allion Labs, Inc.
Paolo Pilla Canova Tech
Greg Stewart Analogix Semiconductor, Inc.
Yi-Feng Lin Canyon Semiconductor
Mehran Badii Analogix Semiconductor, Inc.
YuHung Lin Canyon Semiconductor
Alexei Kosut Apple
David Tsai Chrontel, Inc.
Bill Cornelius Apple
Anshul Gulati Cypress Semiconductor
Carlos Colderon Apple
Anup Nayak Cypress Semiconductor
Chris Uiterwijk Apple
Benjamin Kropf Cypress Semicond
...