SLUSDL9A June 2019 – January 2021 BQ25125
The device contains a CD input that is used to disable the device and place it into a high impedance mode when only battery is present. In this case, when CD is low, PMID and SYS remain active, and the battery discharge FET is turned on. If the LS/LDO output has been enabled prior to pulling CD low, it will stay on. The LSCTRL pin can also enable/disable the LS/LDO output when the CD pin is pulled low. The CD pin has an internal pull-down.
If VIN is present and the CD input is pulled low, charge is enabled and all other functions remain active. If VIN is present and the CD input is pulled high, charge is disabled.