Part Number:TPS65982
Dear Team,
I got three different test results when testing TPS65982 EVM. And I used TPS65983A as its port partner. (firmware version 4.45)
Here are the firmware version I test:
1.12.06
1.11.09
1.07.00
My setup as below figure.
After the connection as above figure, I remove the adapter of 982 EVM.
In 1.12.06, it set dead battery flag up, but its power source still shows VIN_3V3. There is nothing in PD log. VBUS didn't drop.
In 1.11.09, it didn't set dead battery flag up, but its power source still shows VIN_3V3. There is nothing in PD log. VBUS didn't drop.
In 1.07.00, it set dead battery flag up, and its power source is VBUS. In the log, PD issue HRESET to its port partner and negotiate again. VBUS drop.
I would like to know what would be the expected behavior for PD controller when VIN_3V3 drop.
Please help to clarify. Thanks.