LM5122: Conductive electromagnetic interference

Alex Vasin

Part Number: LM5122

How can I investigate conductive electromagnetic interference levels with TINA-TI? I tried to test this in LTSpice, but got this error:

How to remove this error or conduct these tests in tina.

over 5 years ago

0 Youhao Xi over 5 years ago

TI__Guru* 78200 points

Hi Alex,

Thank you for considering the LM5122. Sorry we do not support LTSpice. You should be able to simulate in TINA with the model at the following link:

https://www.ti.com/lit/tsc/snvm495

You can modify the model to your own design, and simulate it by checking the input ripple current, or ripple voltage, depending on how you measure the conducted emission.

Thanks,

Youhao Xi, Applications Engineering

0 Alex Vasin over 5 years ago in reply to Youhao Xi

Prodigy 155 points

How to use a spectrum analyzer? How to use FFT? Please explain to me.

0 Richard Fu22 over 5 years ago in reply to Alex Vasin

TI__Mastermind 31085 points

Hi Alex,

In order to run the frequency analysis, you will need to use the average-model of the LM5122. Please refer to this thread for background:

https://e2e.ti.com/support/tools/sim-hw-system-design/f/234/t/709571

Thanks,

Richard

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LM5122: Conductive electromagnetic interference