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I would like to know if it is possible to have in the same package a fuel gauge ic + a protection circuit for lipo battery, or a charge management + protection circuit, in the same package.

I have a design which is size constrained, so i want to put together the 3 circuit i use for - protecting/monitoring charge/and charge - the lipo battery.

Do you know any ic like that ? (and better if cheap).

Thanks.

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  • \$\begingroup\$ Be careful not to make your question look like a shopping question or it will be closed. See Don't ask. \$\endgroup\$ – Transistor Nov 18 '17 at 2:33
  • \$\begingroup\$ Sorry, it was not my goal, i really want to know if there is package with this 3 essential IC for lipo battery. Thanks. \$\endgroup\$ – Yass Nov 18 '17 at 15:32
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Discharge rate and capacity is different for most batteries. So there is no chip that can accurately do this job.

You could use a µController with a ADC input to measure the battery voltage and calculate discharge rate.

You create a table of voltages and discharge rates from the battery's discharge characteristics curve to calculate the remaining battery life.



enter image description here

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  • \$\begingroup\$ Thanks Misunderstood for your answer, but if the discharge rate is not constant, it is really correct to simply associate the lipo battery voltage and the capacity as on the graph ? \$\endgroup\$ – Yass Nov 18 '17 at 15:36

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