The VINDPM feature is used to detect an input source voltage that is reaching its current limit due to excessive load and causing the voltage to reduce. When the input voltage drops to the VINDPM threshold (V_{IN_DPM}), the internal pass FET reduces the current until there is no further drop in voltage at the input. This prevents a source with voltage less than the V_{IN_DPM} to power the OUT pin. This unique feature makes the IC work well with current limited (for example, high impedance) power sources, such as solar panels or inductive charging pads. This is also an added safety feature that helps protect the source from excessive loads.

The BQ25176M solar charger features the battery tracking VINDPM. V_{IN_DPM} tracks the battery voltage (OUT pin voltage), which is typically V_OUT+145mV. The minimum V_{IN_DPM} is 3.25V. It enables charging from the solar panel when the battery voltage is low and maintains the charging as the battery voltage increases even when the charge current is low.