SLUAAZ6 October   2024 BQ25638

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2What is Dynamic Power Management?
  6. 3How to Achieve Solar Battery Charging with VINDPM
  7. 4Using the BQ25638 and BQ2562x for Solar Battery Charging
  8. 5Other Key Takeaways
  9. 6Summary
  10. 7References

Abstract

For single-cell batteries, there is an increasing application need to charge with a solar panel. To charge the battery from a solar panel with the most charge current, the charger needs to operate at the Maximum Power Point (MPP). If the charger input voltage is not held at the MPP, then the charger attempts to pull as much power as possible from the panel, potentially collapsing the input voltage. A feature of TI Battery Chargers called Input Voltage Dynamic Power Management (VINDPM) can be used to hold the input voltage of the battery charger at the MPP.