This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

  • TI Thinks Resolved

LM53635-Q1: LM53625/35 Radiated Emission Data

Part Number: LM53635-Q1

Hi,

We also would like to have RE data of LM53635LQRNLTQ1. 

And is there any way to go Spread Spectrum Mode with 24V Input Supply, since sometimes we are seeing RE failing in lower Frequencies around 30 to 50MHz

Regards,

Ganesh

  • Ganesh,

    I've forwarded this to the expert. He will get back to you shortly.

    -Sam
  • Ganesh,
    Is there a specific data set for radiated emissions you are looking for?
    Please let me know and we can provide data as this device has been tested in certified UL lab.

    Regarding spread spectrum operation at high input voltages, this is unfortunately not possible. See datasheet section 8.5 that describes in details conditions under which spread spectrum is not operational.

    regards
    Brani
  • In reply to Brani Dubocanin:

    Thanks, Brani for your reply.

    We are using the same part as part of the design. When we are doing RE compliance Testing for IEC-61000-6-3 we getting some peaks at 30.64MHz, 43.8MHz, around 47MHz. We do not have any clock source for this lower frequency in our board. We are suspecting the power supply on this,

    We have tried Fixed PWM and Light load efficiency mode. But in both mode, we were able to see the similar radiations.

    1) Please share us the RE report of LM53635-Q1

    2) Share us the way how we can reduce the peaks at the lower frequency when using LM53635-Q1 in design

    Regards,

    Ganesh

  • In reply to Chithambara Ganesh57:

    Hi,

    Any update here, please?

    Regards,

    Ganesh

  • In reply to Chithambara Ganesh57:

    Hi Ganesh,
    We have complete radiated emission report for this device.
    Please contact me at
    branislav.dubocanin_at_ti_com
    so i can share it with you.
    Please provide also your schematic.
    Best regards
    Brani
  • In reply to Brani Dubocanin:

    Hello,
    Since there is no activity on this thread I will go ahead and close it.
    Regards
    Brani

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.