Overview
IEC 62680-1-2:2026, published by the International Electrotechnical Commission (IEC), specifies the Universal Serial Bus (USB) Power Delivery (PD) specification for USB interfaces. This international standard outlines protocols, power delivery architecture, and the necessary components to support dynamic power management over USB connections. It covers all elements of a USB system, including USB Hosts, Devices, Hubs, Chargers, and cable assemblies, facilitating safe and flexible power negotiation up to 100W in Standard Power Range (SPR) Mode and up to 240W in Extended Power Range (EPR) Mode.
This edition incorporates the USB-IF Universal Serial Bus Power Delivery Specification Revision 3.2, Version 1.1, and replaces the previous (seventh) edition from 2024. With the addition of Extended Power Range (EPR) and the Adjustable Voltage Supply (AVS) feature, IEC 62680-1-2:2026 enhances compatibility, system flexibility, and ease of integration across a wide range of consumer and professional devices.
Key Topics
- Power Delivery over USB: Defines a system for managing and negotiating power delivery, supporting both low and high power devices on a unified platform.
- USB System Elements: Covers Host, Device, Hub, Charger, and cable assembly requirements.
- Modes of Operation:
- Standard Power Range (SPR): Delivers up to 100W.
- Extended Power Range (EPR): Enables up to 240W with Adjustable Voltage Supply (AVS).
- Architecture and Protocols: Specifies communication protocols for initiating, negotiating, and maintaining power flow safely between components.
- Backward Compatibility: Ensures full compatibility with current and legacy USB infrastructure, allowing broad adoption and smooth upgrade paths for manufacturers.
- Flexibility and Differentiation: Provides system OEMs and developers room for product differentiation and versatility while adhering to universal standards.
Applications
Implementing IEC 62680-1-2:2026 is critical for device makers, OEMs, and technology integrators focusing on modern USB technology. Key application areas include:
- Consumer Electronics: Laptops, tablets, smartphones, and monitors benefit from standardized higher-wattage USB power delivery for fast charging and powering demanding devices.
- Peripheral Devices: External storage solutions, docking stations, and USB hubs use PD to power multiple devices and provide scalable charging options.
- Universal Charging Solutions: Enables consolidated charging infrastructure, reducing the need for proprietary chargers and supporting sustainability initiatives.
- Power Supply Design: Assists power supply and charger manufacturers in meeting global compatibility with devices requiring a range of power levels.
- Industrial and Medical Equipment: Offers a reliable platform for integrating USB power solutions in complex, mission-critical environments.
Related Standards
IEC 62680-1-2:2026 is part of a group of standards that support robust data and power interoperability across USB devices:
- IEC 62680 Series: Covers Universal Serial Bus interfaces for data and power, including mechanical, electrical, and communication aspects.
- USB-IF Specifications: Refer to documents maintained by the USB Implementers Forum for further details on USB Type-C, USB4, and other related technologies.
- ISO/IEC Standards: For integration with broader international standards across computing and communications sectors.
By adhering to IEC 62680-1-2:2026, industry players ensure safe, reliable, and future-proof USB power delivery, supporting evolving requirements in consumer, industrial, and professional technology environments.
Keywords: USB Power Delivery, IEC 62680-1-2:2026, USB PD, Extended Power Range, Adjustable Voltage Supply, USB charging, USB specification, international standard, power management, USB compatibility.
Open preview (PDF)Universal Serial Bus interfaces for data and power - Part 1-2: Common components - USB Power Delivery specification
