Operation outside of the common mode input voltage range is outside of the guaranteed electrical characteristics. In the case of an open collector comparator, as long as the supplied voltage at one of the input pins is within the common mode input range the comparator will operate normally. However, when the voltage supplied to both input terminals falls out of the common mode input range the output will be fixed at Low. But with the BA10393/BA10339, if an input voltage higher than the supply voltage is input there is a possibility of destruction due to breakdown voltage.Related Link：Technical Document
