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BQ77908A: Input Current at VCx pins

Yoshinobu Kagawa
Expert 1860 points
Part Number: BQ77908A
Other Parts Discussed in Thread: BQ77915, BQ76930

Please tell me the value of the input current of VCx pin of bq77908A.
The data sheet of bq77908A did not contain the value of the input current of VCx pin.

Best regards,
Kagawa

  • 0
    TI__Guru* 78033 points

    Hi Kagawa-san,

    You are right, it doesn't look like the input current of the VCx pins is specified in the datasheet. You should be able to measure this current by measuring the voltage across the input filter resistors. For many devices like the BQ77915, it is within +/-100nA, but I am not 100% sure about this device. 

    I do not see this device used in many new applications. Do you think the BQ76930 or the BQ77915 might be a better fit?

    Best regards,

    Matt