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LMG1210EVM-012: LMG1210EVM-012

Adrian Macam
Prodigy 10 points
Part Number: LMG1210EVM-012
Other Parts Discussed in Thread: LMG1210

We are having difficulty testing the LMG1210EVM-012, we are using a 10 Volt power supply for the input bias supply, 20 volt for the input DC supply while PWM signal within a range of 10KHz-2MHz.  We are trying to operate the LMG1210EVM-012 to switch between 0 volt to 50 volts. Does anyone has an idea of a precise procedure for testing the LMG1210EVM-012.

  • 0
    TI__Mastermind 20950 points

    Hello Adrian,

    Thank you for the interest in the LMG1210 EVM. I am an applications engineer with the High Power Drivers team and will address your questions.

    I see the EVM users guide specifies an operating frequency range with the typical shown of 1MHz. Since there is the output filter inductor on board, the inductor value is dependent on the operating frequency. Since there is test data or scope plots at 1MHz and 10MHz I would expect the installed inductor to be chosen for the 1MHz low range operating frequency.

    Confirm the board operating with 1MHz tested operating frequency. Confirm the function generator pulse width and amplitude settings for HI or LI. If you want to use single input PWM confirm the input mode described in Section 7.1 of the Users Guide. The Users Guide can be found here:

    http://www.ti.com/lit/ug/snvu572/snvu572.pdf

     The inductor selection is covered in section 7.3.2.2 and should be chosen for the lowest operating frequency.

    Please confirm if this resolves your concerns, or you can post additional questions on this thread

    Regards

  • 0
    TI__Genius 12990 points

    Hi Adrian,

    thanks for reaching out about LMG1210 and welcome to e2e! I work with Richard and would like to also help with this issue.

    Let me know if you have any questions about any of the test procedures in the EVM User's Guide.

    What issue are you having while testing the EVM exactly?

    thanks,