USB Charging
USB Power Delivery
USB Power Delivery is the USB-IF system for negotiating power between compatible USB devices and chargers.
Related: USB-C Charging · USB PD PPS · USB Fast Charging
Characteristics
| Maximum power | Up to 240 W with supported Extended Power Range implementations |
|---|---|
| Power negotiation | The source advertises capabilities and the sink requests a supported power level |
| Power direction | Power roles can be negotiated rather than being permanently tied to host and peripheral roles |
| Common fixed voltages | 5 V, 9 V, 15 V, and 20 V, with higher Extended Power Range levels also defined |
| Adjustable output | Supported through features such as Programmable Power Supply where implemented |
| USB data speed | Independent; USB PD support does not by itself identify the USB data rate |
