Part Number: TPS65987EVM
Hello,
The following phenomenon is occurring. Is there a solution to get 20V output correctly?
(1) When the TPS65987EVM with the following settings written in Flash and the AC adapter are connected by Type-C USB cable and AC100V is input, the voltage shifts at 0V, 5V, 20V.
D16, D17, D19, D20 blink as the voltage shifts.
VBUS (TP1) -GND (TP5) is probed to monitor the voltage.
New Project⇒TPS65987DDH⇒Standard(Recommended)⇒DRP,prefers power source
Binary⇒Flash from current project
(2) After (1), change the setting to Sink only as shown below, and as a result of measuring the voltage again, only 5V is output.
Also, as shown in the attached image, SYS_PWR (D19) lights up immediately after AC input, but turns off in a few seconds. After that, 5V remains output.
New Project⇒TPS65987DDH⇒Standard(Recommended)⇒UFP only
Binary⇒Flash from current project
Regards,
Oryoji