BQ24232: bq24232 / Large pulse charge current during supplement mode to charging

Part Number: BQ24232


My customer found that the large pulse charge current is occurred when the operation is changed from supplement mode to charging. This may not be issue for battery because the duration of this pulse current is very short, but this may be issue when the system load will be change periodically and high frequency. Actually they tested with continuous pulse load as attached and then they could see over charge protection at by protection at battery. I believe that this pulse current is occurred at Deglitch time between supplement mode to charging, so I'd like to know how to reduce the peak of this pulse current to the battery.

I took this waveform by using EVM. I just changed ILIM to 200mA and ISET to 30mA. And then connect pulse load by electrical load from Vout.

Best Regards,

Satoshi / Japan Disty