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BQ27220: BQ27220 TRM enquiry

Part Number: BQ27220
Other Parts Discussed in Thread: GPCCEDV

Dear Sir/Madam,

I am using BQ27220 which is using CEDV technology but the TRM circle below guide me to Host system calibration method which applied to IT tech. Is this app note applicable? I am facing issue where I can update the design capacity value to 13200mAH via I2C via external MCU. However, the FCC value still remain at 3000mAH after the training cycle. Wonder which step actually go wrong.  Need some expert advise before losing this socket opp.

Best regards,
kpk