SPV1040 Question

[Joseph.Paul]

I have a solar panel the generates about 5V @ 200mA, trying to use the solar panel (5V/200mA) and charge a single cell lithium battery with a capacity of 5000mA. Can the SPV1040 device handle this task? Thank you.

[Peter BENSCH]

Yes, you can do that. Please ensure that your solar panel does not deliver more than the maximum input voltage of the SPV1040 of 5.5 V.

One example could be the AN4050, which shows a high efficiency solar battery charger with embedded MPPT.

Good luck!

When your question is answered, please close this topic by choosing Select as Best.

/Peter

[Joseph.Paul]

so it needs to be combined with L6924D? 

[Peter BENSCH]

Well, you didn't specify the type of the battery yet. If we are talking about a single lithium cell rather than a lithium battery pack you should do it exactly that way, i.e. SPV1040 is supplying the constant voltage to the load plus a battery charger device such as the L6924D.

/Peter

[JulienD]

Thanks for your answer.

But section 6.3 and 6.4 deal with constant current and constant voltage which is what is needed for lipo charging.

Why is me interpretation wrong?

Regards

Julien

 

[Peter BENSCH]

Well, your assumption is not necessarily wrong, but usually not sufficient. LiIO and LiPo require more precise regulation of the current and especially the voltage, which is why a dedicated battery charger chip is connected afterwards for this case.

Regards
/Peter

[m0ss]

Do you think it would be sufficient to use the SPV1040 as the charger and then a common Li-ion protection module (for over charge, over discharge, short circuit and over current protection) to address these issues?