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MAX38888 capacitor management chip output voltage adjustment

Category: Hardware
Product Number: MAX38888
Software Version: NA

After the main battery is canceled, the super capacitor will provide a voltage of 4V in the reverse direction. However, according to the SPEC definition, the value of the partial voltage resistance in the FBS cannot be confirmed。

The sizes of R5 and R6 are determined by the following two formulas. When the reverse output is 4V, the resistance cannot be determined

1,charger:VFBS>0.56V2,discharger:R6 = R5 × ((VSYSMIN / 0.5) − 1)

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[edited by: GenevaCooper at 10:16 PM (GMT -5) on 2 Feb 2023]