UCD90320: UCD rail reference setting

Comi Li

Part Number: UCD90320

Hi team，

I have a request, please help to check if it’s doable or not.

If I use one AMON pin connects to current sensing for whole board, can I dynamically setting up a reference voltage via PMBus cmd as threshold, if voltage over the threshold, map out a LGPO as alert to throttle down.

BR，

Comi

4 months ago

0 Anne Ngo77 4 months ago

TI__Expert 6050 points

Hi, Comi,

Yes, it is doable for UCD90320: assign a LGPO to monitor rail's OVF status.

Regards

Anne Ngo

Texas Instruments

0 Comi Li 3 months ago in reply to Anne Ngo77

TI__Intellectual 2600 points

Hi Anne,

I mean is OC threshold value able to be dynamically changed by s/w when power sequence is on?

BR,

Comi

0 Anne Ngo77 3 months ago in reply to Comi Li

TI__Expert 6050 points

Hi, Comi,

Do you mean OCF threshold (46h)? If yes, then register threshold can be modified on the fly.

Regards

Anne Ngo

Texas Instruments

Power management

Power management forum

UCD90320: UCD rail reference setting