Question
Under circumstance even 3 Li-ion cells goes down to 6V only - would the AD7280A
work?
Answer
The Performance similarly as Functionality of the AD7280A device is guaranteed
at 8 V supply and above. If you go down with the supply voltage your
performance will degrade however part should be still functional. I run a quick
test for you today at 6 V VDD and I was able to communicate with the part with
absolutely no issues. Please be however aware that this test was not
representative as I checked it on only one unit. The functionality at 6 V
supply or < 8 V supply due to lack of supporting data cannot be guaranteed
unfortunately.