6 Description
6.1 Typical Application
• USB-C PD Power Adapters
• USB-C PPS Power Adapters
• AC-to-DC or DC-to-DC auxiliary power supplies
• High-density AC-to-DC converters / Adapters for notebook computers, tablet computers, TV, and set-top box
6.2 Using the EVM on a Load with USB-C PD Communication
UCC28782EVM-030 comes populated with USB-C PD controller (WT6636F) and requires external connection
through an on-board USB-C connector to a USB-C PD load so to adjust the board output to obtain 5-V, 9-V, 15-V
or 20-V. A USB-C PD communicating load is required in order to make the board evaluation. An example of such
a load is PM110, USB Power Delivery Tester, and PassMark Software. Without such a communication load, the
board output USB-C connector (J1) does not provide output voltage. Besides, to get full load current 3.00-A from
5-V, 9-V and 15-V, a USB-C cable without E-mark may be used, but to get 3.25-A at 20-V output, an E-mark
USB-C cable has to be used. In case the EVM is desired to test on a load without USB-C PD communication,
the next section describes how to modify the board to make test.
6.3 Using the EVM on a Load without USB-C PD Communication
Normally, a USB-C PD communicated load is required in order to make evaluation. Without such a USB-C PD
communication-based load, the board does not provide output voltage on USB-C (J1) connector. In such a case,
the board output voltage can be obtained from C37 but only 5-V and up to 3.00-A can be obtained.
Description
SLUUBZ3B – MAY 2020 – REVISED AUGUST 2020
Using the UCC28782EVM-030 65-W USB-C PD High-Density Active-Clamp
Flyback Converter
9
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