TPS542941 - About VIN2

Hide

Guru 21045 points

Hi Team,

We applied the voltage to VIN1 only.

However, around 5.0V appeared in VIN2 at the same time.

Is this phenomenon correct operation?

If yes, could you please let us know the reason?

(For example, Is there a parasitism diode between "VREG5 output" and "VIN2"?)

Regards,

Kanemaru

0 Jason Wang (BSR-MV) over 9 years ago

Kanemaru,

If SW2 is floating, maybe there is leakage current to VIN2, like below path, but only several uA level.

Jason Wang

0 Jason Wang (BSR-MV) over 9 years ago in reply to Jason Wang (BSR-MV)

I want to paste a picture here, but fail. Please find insert file, page 6.

0 Hide over 9 years ago in reply to Jason Wang (BSR-MV)

Guru 21045 points

Hi Jason-san,

Thank you for the information.

I understand. Thank you very much.

Regards,

Kanemaru

Power management forum