Hello,
Two questions on UCD90160:
1. If Rail 1 has multiple sequence-on dependencies (let's say Rail 2 and GPI1), and GPI1 is briefly asserted but goes away, will Rail 1 turn on when Rail 2 reaches PGOOD? Or will the UCD wait until both Rail 2 reaches PGOOD and GPI1 is asserted?
Page 89 of the Command Reference looks like both conditions must be simultaneously met (AND), but I wanted to verify:
The turn on condition for each page can depend on the state of several other pages and/or input pins. The same pages and pins also may be used to control multiple pages. The GPI and Page dependencies (Sequence On Dependencies) define a set of conditions which allow a page to turn on when met. Note
that the logical AND of all conditions must be met before a page can be turned on. Once the page is on, these dependencies have no further effect on the operating status of the page. Specifically, they do not cause a page to turn off.
2. Different example / question - if Rail 3 is monitor-only (no mapped EN pin), does turn-on delay have any effect (such as adding a delay from when Rail 3 is interpreted as PGOOD)?
My understanding is that it won't do anything, because TON_DELAY is the delay period from the dependencies being met to the rail EN being asserted, which would not apply in this case.
Thanks,
Jonathan
