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BQ500511A:Meaning of FOD_CAL

Masanori Yoshida
Prodigy 30 points
Part Number: BQ500511A


There are two equations that describe the FOD of the bq500511A. What if we put the equations together to better understand FOD_CAL?
FOD_threshold = FOD_THR × 400
FOD_correction = –1000 + FOD_CAL× 800

  • 0
    TI__Guru* 76506 points

    Hello

    The two resistors, R-FOD_threshold and R-FOD_correction are independent values. 

    FOD_THR is a flat threshold across the load range, will set fault trip point.

    FOD_correction will change the shape of the loss curve by changing the internal calculation for conversion, not necessarily flat.