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BQ27542EVM: Application issues of chips

Tonyx.wu
Genius 3915 points
Part Number: BQ27542EVM

Here, the I2C pull-up is 10k. If we do compatible design, can we pull up 2.2K here? What is the range of this resistance value? What are the main effects of choosing different resistance values? The 2C address is not limited to this power meter

  • 0
    TI__Mastermind 28450 points

    Hello,

    Can you please tell me what frequency you plan to communicate at?

    As long as your communication meets the I2C communication requirements below, then reducing the pull up resistance is fine.

    Typically, the pull up resistance is reduced when the rise time is trying to be increased to meet certain requirements.

    Regards,

    Anthony Baldino