Hi TI Teams,
We set the charge current of BQ25306 to 1A(2-cell Li-lon battery), but the actual measured charging current can reach 4A when the battery voltage is low, which have exceed the maximum charging current supported by BQ25306 (3A).
The schematic is show as below:
The input voltage is 9.5V and the battery is 2-cell Li-lon. The output current waveform of SW pin is as follows:
1) With the load
2) Without the load
Can you help to analyze the cause of this problem?
Thanks,
Kind Regards