SNVSBY7 March 2021 TPS92390
The following equation is used to calculate the UVLO threshold for VIN rising edge:
The hysteresis of UVLO threshold can be designed and calculated with the following equation.
So the following equation can be used for UVLO threshold for VIN falling edge:
The bottom resistors, R5 of voltage divider is able to be disconnected to the GND through an additional external N-type of FET as Figure 7-17. This design is to minimize the current leakage from VIN in shutdown mode to extend the battery life.