Can the following circuit work properly?

[nick]

if its V(out min)=+3.6V and the V(input min)=+3.9V ?


thanks!

 

[YD]

if its V(out min)=+3.6V and the V(input min)=+3.9V ?


thanks!

Of course it can. It all depends on what's between the input and
output.

- YD.