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[FAQ] BQ25618: Why does ICHG reduce during the input current DPM (Dynamic Power Management) or the input voltage DPM for the chargers BQ25618, BQ25618E, BQ25619, BQ25611D, BQ25616, BQ25600, BQ25600D, BQ25601, BQ25601D, BQ25606?

Part Number: BQ25618
  • When the input source is over-loaded, it is either from the current reaching the IINDPM (Input Current Limit) or from the voltage dropping to the VINDPM (Input Voltage Limit).
    • For the current to cause the input source to be overloaded: either IINLIM (Input Current Limit set by Pin or Register) has to be reached.
    • For the voltage to cause the input source to be overloaded: the input voltage falls to the VINDPM threshold.
  • The device reduces the charge current in the dynamic process to prevent the input current from rising above the input current limit or to prevent the input voltage from dropping below the input voltage limit.

For more information about the operation of IINDPM or VINDMP operation, please refer to the short video: Current and voltage dynamic power management of multi-cell charges