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STEVAL-ISV020V1 - total resistance

Associate II

Hi @Peter BENSCH 

I hope all is well with you,

As mentioned in a separate subject, I use my solar panel connected to the STEVAL-ISV020V1 to charge my LiPo battery. I wonder if you can help me figure out the total resistance of the STEVAL-ISV020V1 board when it operates in my project. Attached below is the connection




Thank you and hoping to hear from you soon!

Best regards.

Associate II

In addition, the output voltage of my PV is around 4V which means that it meets the required input PV voltage to operate the STEVAL-ISV020V1 board which must range from 2.6V to 9V. My concern is when I connect the output of my solar panel to the STEVAL-ISV020V1 board (same connection as attached),


why does the voltage measured suddenly decreased below 1V?

Also since what happens if the battery is already below 3.7V, will the STEVAL-ISV020V1 board to which I connect my 4V PV still charge the battery?

Sorry to have so many queries. This is related to my last question, what if my battery measures 7 V which is beyond the EOC threshold 4.2 V, how will the STEVAL-ISV020V1 board respond to this? Will it let the battery drain until it reaches the range 3.7 V to 4.2 V to operate the UVP and EOC correctly?