Problem about Lm5010

Gao Long

I use LM5010SD/NOPB for application 48V in and 5V out .

The problem is I can't detect any signal from the IC,except VIN and RON/SD pin have 48V,and SW have a pulse when power on.

And the VCC is also not have any signal out.

Thank you!

over 11 years ago

0 Gao Long over 11 years ago

Prodigy 20 points

And I also experiment the circuit from Webench. It has the same result.

0 Vijay86929 over 11 years ago in reply to Gao Long

TI__Genius 11490 points

Hi Gao,

From the description, I can't tell what the problem might be. I will try swapping the part or ensuring it is soldered properly. Atleast VCC should come up before we talk about other signals.

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Problem about Lm5010