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TMAG5173-Q1: I2C out of specification issues

Ryan Fang
Prodigy 10 points
Part Number: TMAG5173-Q1

Tool/software:

Dear Sirs,

Recently,our engineers encountered an issue while designing actuator using the TMAG5173-Q1. 

During I2C measurements, it was observed that the SCL frequency generated by the FPGA was 340KHz and could not be adjusted to 400KHz.

Additionally, the data hold time exceeded the specified 900 ns. Could you please explain what kind of impact this might have on the TMAG5173-Q1?

Please contact me via the following email.

ryan.fang@coretronic.com

Thanks,

  • +1
    TI__Genius 13900 points

    Hi Ryan,

    Thank you for posting to the Sensors forum!

    Using an I2C frequency of 340KHz when communicating to the TMAG5173 is fine. The TMAG5173 is capable of communicating when the frequency is as low as 1kHz (which is the minimum frequency required to communicate to the device). Exceeding the the max data hold time for fast mode just means that you won't be communicating in fast mode.

    Best,

    ~Alicia