I would like to use these devices in an application that can go to 55,000 feet in altitude.
I have designed in a bunch of Digital Isolators with and without power.
ADM2565EBRNZ
ADUM342E0BRQZ
ADUM3151BRSZ
ADUM3152BRSZ
ADUM6202CRWZ
I understand clearance and creepage across the package and between pins etc (and on the PCB itself) and the need to derate at higher altitudes. Also, how conformal coating etc can help mitigate.
What I am not sure about is the possible affects, if any, on the breakdown of the device internal transformers / isolation barrier?
Are they similar to transformers with an air gap, where the reduced dielectric at altitude can effect their performance significantly?
Will these devices even functionally operate (never mind the isolation) at 55,000 feet?
Thanks
