BQ76930: DSG/CHG signal falls down during activation

Part Number:BQ76930

Hi Team,

I I'm evaluating a BMS design constisting of bq76930+bq76200 for 10s battery.

Here the schematic of the AFE and powerstage:

During activation of a capacitive load (680µF caps of an engine controller) the DSG and CHG signals of the AFE get low. I also see a short communication failure via bqstudio during the activation process.

So it looks like the AFE will reset for a short time (after 360ms).

I already checked the voltage at VC10X, VC5X, REGSRC, VDDCP at the moment, when DSG falls down, but all of them are stable.

At the beginning of the activation the voltage at VC1 falls down to 1.88V. Is this the reason for the reset? Will increasing the input caps for the filter (C14 - C24) helps? 

The voltage at VC5X and VC10X looks stable for me:

VC10X                                                                                VC5X

Any other signals I should capture for research?

BR, Patrick.