The reverse current protection channel (i.e. GATE1) can be disabled by pulling the ONQ1 pin high. This places GATE1 in a known state (i.e. Vsense+5.5V). A pull-down resistor should be used at GATE1 to ensure the node is not left floating. Alternatively, you can have a pull-down on GATE1 and leave reverse current enable. The benefit here is that the GATE1 output driver will remain low if no reverse current is detected. This means the charge pump is not constantly active, so there is a savings in quiescent current draw due to the inactive GATE1 pull-up current (i.e. IG1U).