The inverting and noninverting configuration of the comparators forms a window-comparator detection circuit using a resistor divider network, as illustrated in Figure 8-1 and Figure 8-2. The input terminals can monitor any system voltage above 400 mV with the use of a resistor divider network. The INA+ and INB– terminals monitor for undervoltage and overvoltage conditions, respectively.

Figure 8-1 Window Comparator Block Diagram

Figure 8-2 Window Comparator Timing Diagram