Hi,
Please find attached my UDC90120A design
The board is powered from the P3V3_PREFET and PVPWR rails. Some additonal rails are sequenced depending on these 2, others are just monitored by the UCD90120A.
I've got my power-on sequence working
If P3V3_PREFET and PVPWR are both good, step1) enable P1V0, step2) enable P1V8 and P2V0, step3) enable 'others'
I've got my power-off sequencing working
If either PV_PWR or P3V3_PREFET fail, step1) disable 'others', step2) disable P1V8 & P2V0, step 3) disable P1V0 [i.e. the reverse of the power-on sequence]
So next I want to resequence my rails in the event of a failure, ie if either P3V3_PREFET or PV_PWR go 'bad' and the rails sequence off, I then want to sequence them back on again once the incoming rail comes good again. I've experimented with the demo board and different combinations of the retry/resequence options but to no avail.
Any chance someone could give me some pointers to get this functionality in the GUI (either a step-by-step guide or by modifying my attached design) - I'm using V1.8.211 as the latest version seemed to crash lots...
I have no processor/PMBusMaster, the UCD90120 is operating without any external inputs.
Thanks in advance,
Bruce.
