LM53635-Q1: LM53625/35 Radiated Emission Data

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

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

Hi,

Any update here, please?

Regards,

Ganesh