Other Parts Discussed in Thread: TPS22913
Dear Champs,
I understand USB VBUS of AM1806 is not fail-safe IO, and thus it should be disconnected when device power off.
When I checked 'AM1x schematic review guidelines' , it was recommended to disconnect VBUS using discrete load switch like TPS22913.
But, my customer requested to check again if there is a way to avoid this situation by using voltage divider as below.
Could you please let me know if VBUS should be dis-connected completely as recommended in 'AM1x schematic review guidelines' when device power-off, or if it will be OK when the voltage can be managed?
If voltage divider can be used, what is the threshold volt?
Thanks and Best Regards,
SI.