Dear *
we want to use TPS2121 in our design.
We have two inputs VBUS and AUX DC 5V
Because the VBUS is 5V and AUX DC is 5V , what is the proper connection that when ever AUX DC 5V is present it is used over VBUS 5V?
Best Regards,
David.
This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Dear *
we want to use TPS2121 in our design.
We have two inputs VBUS and AUX DC 5V
Because the VBUS is 5V and AUX DC is 5V , what is the proper connection that when ever AUX DC 5V is present it is used over VBUS 5V?
Best Regards,
David.
Hi David,
Thanks for reaching out on E2E!
To clarify the configuration, both inputs are 5V and AUX DC needs to take priority. Therefore, I recommend looking at the datasheet for the XCOMP configuration, page 24, with AUX DC on IN1 and VBUS on IN2.
Thanks,
Arthur Huang