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BQ25504: bq25504 output voltage

Part Number: BQ25504
Other Parts Discussed in Thread: CC1310,

Hi

My customer want to design with BQ25504, and they want to know BQ25504 collects solar energy, VSTOR is connected to CC1310, CC1310 working voltage is 3.3V.

Can CC1310 be directly connected to VSTOR?  or add a voltage regulator between BQ25504 and CC1310.

I want to know Whether the discharge of the capacitor at the VSTOR terminal can stabilize the output, the super capacitor is used as an energy storage battery.

Thanks

Star

  • Dear Star,

    The VSTOR pin is intended for the load, however you will need a regulator for the CC1310 as the VSTOR voltage is not regulated. The VSTOR voltage rises as the battery charges. Keep in mind you may need regulator that can step up and step down, as the converter turns on when VSTOR = 1.8 V.

    Thanks,

    Mike Emanuel

    Please click "Resolved" if this answers your question.