There are a number of significant differences between the pd 2 0 specification and the latest 3 0 specification.
Usb power delivery 3 0 specification.
Usb power delivery revision 3 0 version 1 2 2018 06 21 20 v 5 a usb type c rev1 4 2019 03 29 5 v 3.
Usb c formally known as usb type c is a 24 pin usb connector system with a rotationally symmetrical connector.
Since the pd 1 0 specification usb pd s power profiles were a way to communicate power supply capabilities to a usb end.
Power delivery 3 0 vs 2 0.
Power delivery profiles pdps.
It was developed at roughly the same time as the usb 3 1 specification.
Usb power delivery ssd hdd usb 2 0 usb 3 0 usb bc 1 2 2 5w 4 5w 7 5w extend ease of use reduce clutter reduce waste power increased to 100w concept of universal charging being extended by iec 63002.
Usb power delivery specification revision 2 0 version 1 3 and corresponding adopters agreement.
Usb power delivery is a separate specification that can work across usb 2 0 and 3 0 ports and cables but you ll still need a usb type c port too due to the communication pins used by the standard.
Recommendations for which adopters agreements are appropriate to execute are listed below.
The usb type c specification 1 0 was published by the usb implementers forum usb if and was finalized in august 2014.
The usb power delivery specification revision 3 0 defines a programmable power supply pps protocol that allows granular control over v bus power in 20 mv steps to facilitate constant current or constant voltage charging.
Usb 3 0 ports may implement other usb specifications for increased power including the usb battery charging specification for up to 1 5 a or 7 5 w or in the case of usb 3 1 the usb power delivery specification for charging the host device up to 100 w.
In july 2016 it was adopted by the iec as iec 62680 1 3.
Usb power delivery is covered by the relevant adopters agreements for either usb 2 0 or usb 3 0 depending on the specification implemented.
Usb power delivery specification revision 3 0 version 2 0 ecns february 7 2020.