I have my solar cell connected to BQ25505 according to the datasheet simplified schematic below. This is a permanent connection in my system and I can not change it unless I break into my module. The battery is external to my system though and I can remove it.
Once the whole system is mounted I have externally access to VIN_DC pin that I want to use to characterize my solar cell by an I-V trace sweep.
What is the input impedance of the LBOOST and VIN_DC pins when BQ25505 is disabled (rechargeable battery removed)? I want to remove the impact from input impedance of BQ25505 and inductor capacitor cnnected to VIN_DC pin so that my I-V trace for characterization of solar cell is valid.