To isolate, or not

cm961 · 22nd May 2003, 02:22 PM

Hey everyone,

I was just wondering what people's opinions are of say ordering the isolated LM3886TF or the non isolated LM3886T. I expect the non isolated package allows for better heat transfer, but with the isolated one you don't need mica I suppose. What are your thoughts?

Pete

JOE DIRT® · 22nd May 2003, 03:08 PM

Pete I would study the data sheet on the difference ...one will probably have a higher dissapation spec and decide from there. I personally like the isolated chips with a little thermal compound.

Cheers!!The DIRT®

cm961 · 22nd May 2003, 07:44 PM

Thanks for the info. Looks like national has ended their freebie samples anyways, so I'll have to make due with what I got, which are isolated anyways.

I think people keep saying that their gainclones don't heat up much anyways so I'm sure the isolated package with some heatsink compound is just fine. Now to just get that S.M.P.S. built.

Pete

22nd May 2003, 02:22 PM	#1
cm961 diyAudio Member Join Date: Jun 2001 Location: Peterborough, Ontario	To isolate, or not Hey everyone, I was just wondering what people's opinions are of say ordering the isolated LM3886TF or the non isolated LM3886T. I expect the non isolated package allows for better heat transfer, but with the isolated one you don't need mica I suppose. What are your thoughts? Pete

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22nd May 2003, 03:08 PM	#2
JOE DIRT® diyAudio Member Join Date: Apr 2003 Location: Brantford, ON	Pete I would study the data sheet on the difference ...one will probably have a higher dissapation spec and decide from there. I personally like the isolated chips with a little thermal compound. Cheers!!The DIRT®

22nd May 2003, 07:44 PM	#3
cm961 diyAudio Member Join Date: Jun 2001 Location: Peterborough, Ontario	Thanks for the info. Looks like national has ended their freebie samples anyways, so I'll have to make due with what I got, which are isolated anyways. I think people keep saying that their gainclones don't heat up much anyways so I'm sure the isolated package with some heatsink compound is just fine. Now to just get that S.M.P.S. built. Pete