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  • TI Thinks Resolved

BQ25504: VOC sampled when MPPT Disabled

Prodigy 100 points

Replies: 1

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Part Number: BQ25504

I have a question related to the BQ25504's MPPT disablement. When you tie VOC_SAMP to VSTOR, you disable the MPPT and also the VOC sampling, or you only enable that VOC sampled is discarded but it stills to be sampled?

I have tied VOC_SAMP to VSTOR and set VREF using external voltage source and VIN stills disconnected each 16s to be sampled.

Thank you very much in advance for your time.


Albert Álvarez Carulla

http://es.linkedin.com/in/aalvarca/

 

  • Guru 70115 points
    Albert,

    VOC_SAMP, and therefore VREF, must be tied higher than VIN_DC in order for MPPT sampling to stop. If your external source is holding VREF below VIN_DC then MPPT sampling will not stop.

     

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