2 What is Dynamic Power Management?

The key to extracting the most power possible from a solar panel is to stay at the MPP. When charging near the MPP, the battery charger has the potential to crash the panel voltage to the short circuit condition. One way to prevent this crash is to regulate the input voltage of the battery charger. If the MPP is known and the battery charger holds the input voltage at this limit, maximum power transfer can be achieved.

TI makes use of VINDPM and Input Current Dynamic Power Management (IINPDM) to regulate the input of a battery charger. With VINDPM and IINDPM, the battery charger keeps the input voltage and input current at the set point to prevent browning out the adapter. In this mode, the battery charger also prioritizes system current over battery current to continue supporting the load. In cases of extreme load while overloading the adapter, the battery charger can supplement current from the battery to the load. The key here is in all of these cases, the input voltage and/or input current is being regulated to keep the adapter from collapsing.