SLVAE30E February 2021 – March 2021 TPS1H000-Q1 , TPS1H100-Q1 , TPS1H200A-Q1 , TPS1HA08-Q1 , TPS25200-Q1 , TPS27S100 , TPS2H000-Q1 , TPS2H160-Q1 , TPS2HB16-Q1 , TPS2HB35-Q1 , TPS2HB50-Q1 , TPS4H000-Q1 , TPS4H160-Q1
Looking back at the equation for capacitor charging allows us to predict the charging profile during inrush current limiting. Rearranging Equation 16 to calculate the charging time gives us Equation 17.
Equation 17 shows that the lower the magnitude of the current limit set-point the longer it will take to charge the load capacitance. It is important to adjust this current limit set-point such that it appropriately balances between safely limiting current without significantly extending the charging time. This balance must be determined by looking at the specific application requirements such as system startup timing.