Hello,
We are considering using the UCD9090A to sequence 10 power rails. these rails will need to be sequentially enabled once the previous one has reached the correct voltage. I can see from the datasheet that it should be possible to do this as each rail is sequenced on once the parent rail achieves regulation. I wish to confirm the following:
1) Assumed I can set any voltage for UVLO and OVLO in steps as defined by Table 3. Voltage range and Resolution
2) Assumed that the watchdog can be triggered by a ULVO or OVLO
3) Assumed the watchdog can be sequenced on after all other rails (so the time period will not begin until the power sequence finishes - is it possible to program a longer time for this initial pulse?)
4) Assumed that all GPIO will be high impedance when the device is powered for the first time with no program.
I expect that all the above is true, I just want to verify before including this in a design.
Kind regards,
Ben Strawbridge
