I produce some gadget wich is powered by lithium polymer battery. The battery is very small. It is only 8 mA. I use AP9214L-AN (Diodes) as a protection for the battery. The charging current is 15 mA. The power circuit schema is attached.
If the battery voltage is less than 3.2V AP9214L-AN turns off the battery and should recover normal status from overdischarge status by charging the battery through the charger.
I have 5% warranty return. AP9214L-AN doesn't turn on by charging the battery through the charger.
AP9214L-AN has the technical capability (it is not available for consumers) to turn on by shotting S1 and S2 pins. After I shot S1S2 the gadget works properly without any trouble (I discharge and charge it repeatedly).
So the problem is that I cann't still catch the issue on my table.
Need advice.
What could it be?
Could it be fixed by changing R1, R4, C1?
If the battery voltage is less than 3.2V AP9214L-AN turns off the battery and should recover normal status from overdischarge status by charging the battery through the charger.
I have 5% warranty return. AP9214L-AN doesn't turn on by charging the battery through the charger.
AP9214L-AN has the technical capability (it is not available for consumers) to turn on by shotting S1 and S2 pins. After I shot S1S2 the gadget works properly without any trouble (I discharge and charge it repeatedly).
So the problem is that I cann't still catch the issue on my table.
Need advice.
What could it be?
Could it be fixed by changing R1, R4, C1?
