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LMG3425R050: Output Discharge

Kuramochi Tadahiko
Guru 28715 points
Part Number: LMG3425R050

Hi,

We are trying to evaluate LMG3425R050 on the EVM.

I think that the load discharge is necessary when the evaluation system turns off because the remaining charge on output is dangerous.

How do you discharge the output when evaluation? Did you use resistance or anything else?

Best Regards,

Kuramochi 

  • 0
    TI__Intellectual 1341 points

    Hi Kuramochi,

    Thank you for your question. What kind of evaluation circuit are you using? The load on the EVM should consume the charge on the output capacitor when the converter is shut down.

    Thanks,

    Noah

  • 0 in reply to Noah Rodriguez
    Guru 28715 points

    Hi Noah-san,

    Thank you for your reply.

    >What kind of evaluation circuit are you using?

    I will use the EVM and electric load.

    >The load on the EVM should consume the charge on the output capacitor when the converter is shut down.

    Does it mean that you(TI) do not prepare the discharge circuit when evaluating?

    Best Regards,

    Kuramochi

  • 0 in reply to Kuramochi Tadahiko
    TI__Intellectual 1341 points

    Hi Tadahiko-san,

    Are you using the EVM in buck mode? Or is the configuration being changed for something like a double pulse test?

    In regards to your second question, you don't need a discharge circuit for the output. Because of the load, the output voltage will naturally drop really fast when shutting down. Is this what you were asking?

    Thanks,

    Noah

  • 0 in reply to Noah Rodriguez
    Guru 28715 points

    Hi Noah-san,

    >Are you using the EVM in buck mode? Or is the configuration being changed for something like a double pulse test?

    In buck mode.

    >In regards to your second question, you don't need a discharge circuit for the output.

    >Because of the load, the output voltage will naturally drop really fast when shutting down. Is this what you were asking?

    What does it mean shutting down?

    I think that LMG does not have the shutting down function except for the protection function.

    Best Regards,

    Kuramochi

  • +1 in reply to Kuramochi Tadahiko
    TI__Intellectual 1341 points

    Hi Tadahiko-san,

    By shutting down I mean end the testing, turning off the DC source.

    Thanks,

    Noah