Part Number: TPS25810
Hi,
Start up time takes 150ms on the below waveform.
Is this 150ms de-bounce time mentioned 7.4 "Device Functional Modes" of the datasheet?
Best Regards,
Kuramochi
Hello Kuramochi,
This is actually the amount of time that the USB Type-C spec allows for VBUS to turn on when a source and sink device are connected. The maximum amount of time is 275ms, so 150ms fits within this range.
If you would like to read more on the Type-C specification, I have included it as well.
Let me know if this answers your question or not. If so, please click This resolved my issue
Adam-san,
Thank you for your support.
I have an additional question.
I suppose the flow of VBUS ON as below.
Is my understanding correct?
Best Regards,
Kuramochi
Hello Kuramochi- san,
For USB Type-C, VBUS turns on when there is a valid CC connection detected. In the case of the TPS25810, it will have a pull up resistor on the CC lines, and is waiting to detect a pull down resistor. Here is a section within the datasheet that explains it pretty well. Let me know if this helps answer your question, and helps you understand the timing for Type-C.
