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Original question:

TINA/Spice/LMG1210: TINA/Spice/LMG1210 refrence design

LMG1210: Where can I get the updated reference design of LMG1210 in TINA.

YSK
Intellectual 305 points
Part Number: LMG1210

May I get the updated reference design for LMG1210 in TINA. I have tried the PSPICE model that is available butt I am not able to impot it in to TINA.

Thanks

  • 0
    TI__Genius 12990 points

    Hi Srikanth,

    Thanks for reaching out about LMG1210,

    are you able to use the link below to download the 1210 TINA model?

    Thanks,

  • 0 in reply to Jeffrey Mueller
    Intellectual 305 points

    Hello Jeff,

    Thanks for your kind attention. It worked fine. I have one more question.

    I can't zoom in the time scale in the waveform viewer below 0.1us. I tried several ways but in vain. Basically, I need to see dead time with 1ns precision. Do you have any suggestions to change the zoom settings.

    Thanks

    Srikanth

  • 0 in reply to YSK
    TI__Genius 12990 points

    Hi Srikanth,

    Thanks for letting me know about this zoom limitation.  Let me see if there is a workaround and I'll let you know asap.

    Thanks,

  • 0 in reply to Jeffrey Mueller
    Intellectual 305 points

    Hi Jeff,

    I tried using the above design file in PWM mode, but the HO and LO signals are overlapping and the shoot through periods are ~8ns. I tried varying the values of the potentiometer resistor connected at DLH and DHL terminals, but I can't see improvements to avoid shoot-through and insert dead time. Can you please help me to resolve this issue.

    Thanks

    TIDA01634_EPC8010_V1.10.TSC

  • 0 in reply to YSK
    TI__Genius 12990 points

    Hi Srikanth,

    thanks for explaining your issue,

    I investigated this issue and it seems like theres something wrong with an external component in the schematic that was added, I have not been able to nail down which component is making the issue. However I updated the original file from the web to resemble your setup.

    Attached below, I used the original and copy pasted your FETs and Potentiometer setup and everything works fine.

    V1.10-1 from snom617c.TSC

    Thanks,

  • 0 in reply to Jeffrey Mueller
    TI__Genius 12990 points

    Hi Srikanth,

    Have you been able to zoom closer than 100ns? I think I figured out a workaround. Your current simulation time is 500us, however if you can reduce that to 100us for example the amount you can zoom gets larger. After running the simulation, in the results plot window, click on the x-axis to bring up the set axis pop up window. The precision can be updated however the zoom scale is what you want to change. Say you want to view the dead-time closest to 50.5us, the scale should have a lower limit of 50.49us and an upper limit of 50.51us. This time scale should allow less than 100ns zoom precision.

    Please let me know if you have any issues with this or have any other questions.

    Thanks,