The absolute maximum rating of the IN+ pin is -0.3V to VCC +0.3V. Vcc ranges from 2.5V to 5.5V, thus when you are using 2.5V as Vcc the absolute maximum voltage allowed is 2.8V and for a Vin of 5.5V the maximum absolute voltage allowed is 5.8V. The maximum allowed voltages are thus dependent on the maximum Vcc but this doesn't mean you can't have 0.75V on IN+ when Vcc is not there. Thus, there should not be an issue of having 0.75V on IN+ 1.5ms before the Vcc rises to its value. However, we don't have any measured data to prove it till now. Please do proper emasurement of your design to see if there are any issues which are highly unlikely.