LM5050-1: LM5050-1 in the EMC test, the pulse group have a drop of about 1v.

Cris Qi

Part Number: LM5050-1
Other Parts Discussed in Thread: LM5050-2,

Dear all，

24V output isolation power project, in the EMC test, the pulse group, 24V will have a drop of about 1v. What might be the cause?

Any other IC recommendations as LM5050-2 ? More protection measures,especially more decoupling measures. High voltage MOS drive.

many thanks；

over 6 years ago

0 Karikalan Selvaraj over 6 years ago

TI__Genius 16305 points

Hello Cris,

If i understand your question correctly, do you mean output of LM5050-1 is having 1V drop compared to Input?

Regards
Kari.

0 Cris Qi over 6 years ago in reply to Karikalan Selvaraj

Intellectual 835 points

Hi Kari，

It is thatoutput of LM5050-1 is having 1v drop compared to output（24v output）；

0 Karikalan Selvaraj over 6 years ago in reply to Cris Qi

TI__Genius 16305 points

Hi Chris,

Can you show as test results capturing input voltage, current and output voltage during the EMC testing.
Could you please share more info on the exact test done?

LM5050-1 could have been off during the entire test, this is a possibility based on your response.

Regards,
Kari.

Power management

Power management forum

LM5050-1: LM5050-1 in the EMC test, the pulse group have a drop of about 1v.