IEC 63002 pdf free download
IEC 63002 pdf free download.Interoperability specifications and communication method for external power supplies used with computing and consumer electronics devices.
Annex B provides further detail on the robustness and interoperability characteristics of USB Type-C and USB Power Delivery solutions.
4.4 USB Type-C® Current
The USB Type-C Current power mode is based on a regulated 5 V power source with up to 3 A operation. This power mode uses a simple analogue method over the USB Type-C Configuration Channel (CC) interface for a Source to advertise its available current to a Sink. A USB Type-C Source may advertise default USB Type-C Current (500 mA or 900 mA, based on the version of the USB port and cable), USB Type-C Current at 1 5 A or USB Type-C Current at 3 A. An EPS shall indicate USB BC 1.2 compatibility on the port such that a device (Sink) that doesn’t recognize USB Type-C Current modes but is compatible with USB BC 1.2 can still draw 1,5 A.
4.5 USB Power Delivery (USB PD)
Power transfer at other than 5 V or over 3 A shall comply with IEC 62680-1-2 (USB Power Delivery). USB Power Delivery standardizes the discovery, configuration and functional operation of more capable USB Type-C power sources and battery chargers. The USB PD protocol, operating as a digital communication over the USB Type-C CC interface, enables a predictable, reliable user experience based on a common set of robust mechanisms and communication exchanges between the USB Source and the Sink. The comprehensive set of power delivery methods supported by the USB PD protocol enables a broad range of battery charging approaches and profiles that are specific to the design and operation of the device being charged (the Sink) — this enables device designs to evolve and innovate while the capabilities of a USB PD-based charger can remain a constant.
USB PD protocol is used to provide system control, error detection and handshaking. The four required steps for enabling power delivery are:
1) Source offers its capabilities.
2) Sink requests from the offered capabilities.
3) Source accepts the request.
4) Source indicates that it is ready to provide power.
USB PD protocol can also be used for reporting the status (overcurrent protection, overtemperature protection, overvoltage protection, etc.) of the Source.
The USB PD protocol specifies two principal modes of power transfer that can be implemented by a USB PD Source.
— Fixed Supply operation: Provides a set of selectable fixed voltage and current combinations. IEC 62680-1-2 defines voltages that include 5 V, 9 V, 15 V and 20 V. The Source can offer as much as 5 A, depending on the cable current rating and selected voltage.
— Programmable Power Supply (PPS) operation: Provides granular control of voltage or a maximum regulated source current limit. In PPS mode, the integrity of the connection is continually monitored and absence of a handshake message between Source or Sink forces the connection to lower safe power level. PPS places the burden of regulation in the Source instead of in the Sink, allowing the Sink to better manage thermal rise during higher power battery charging, which aids in lowering touch temperatures. Standard-defined voltage ranges for PPS PDOs are nominally aligned with the defined Fixed Supply PDOs (5 V, 9 V, 15 V and 20 V) with a range minimum of 3,3 V and maximum of 5,9 V, 11 V, 16 V and 21 V, respectively. The Source could offer as much as 5 A, depending on the cable current rating and selected voltage.IEC 63002 pdf download.
