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TMP75B: pull up resister and Max sink current of SDA/SCL pin

Part Number: TMP75B

Hi Team,

My customer have two questions:

1. What's the suggested minimum pull up resister value for SDA/SCL pin?

2. What's the maximum acceptable input current of SDA/SCL pin at 1.8V supply?

Thank you.

  • Hi Lilian,

    1. TMP75B is specified to meet SDA output logic levels with up to 3mA load. This means the minimum resistor value at 1.8V would be 600 ohms. Our SCL pin is input-only and does not have this minimum requirement.

    2. There should be nearly zero input current, except in the moment where SDA acts as an output (discussed in #1 above.) Input current is specified at 1uA max.

    Thanks,
    Ren