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BQ24780S: Turbo boost mode battery discharge current

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Part Number:BQ24780S

Hi Expert

My NB ODM customer have a adapter spec that need turbo boost work in100uS otherwise will trigger Adapter OCP.( adapter OCP 6A for more then 100uS )

We use 5A system power load rise in 5uS time for test.

We had done some test and modify the reg 0x37 Fast DPM Deglitch Time bits to 50uS, boost enable time will short then 150uS but still longer then 100uS.

And I measure the battery current found after boost work, current use around 80uS from little to start large current discharge.

I don't understand why IC need this time for discharge battery boost current. Is it normal or not? 

The picture channel 4 is battery current( scaler is wrong). Please help answer.

Thanks.

BR

Bruce 


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