max reflow temperature of TL4051

Timothy Starr

Hello-

We had designed in the LM4051 into our boards but then noticed that this part has a maximum reflow temperature of 220 degrees C. This is inconsistent with our lead free solder profiles which require a nominal 245 degrees C.

We noticed the TL4051 has the same package and pin out, but there is no specification of the max. reflow temperature in the data sheet. Could you please provide this information? Thanks and Best Regards,

-Tim Starr on behalf of TI@LT

over 9 years ago

0 JohnTucker over 9 years ago

TI__Guru**** 191445 points

I think the re-flow information is in the packaging or label. it is level 1 260c unlim reflow profile.

0 Timothy Starr over 9 years ago in reply to JohnTucker

Expert 2445 points

Hi John-e2e.ti.com/.../479119

I need to be sure. Please check, OK? Or are you sure about the temperature rating, just not sure where it's published?

-Tim

0 LeonardEllis over 9 years ago in reply to Timothy Starr

TI__Guru 71526 points

Hi Tim,

From the datasheet page 16 note (3) references JEDEC for peak solder temperature. From the wiki: http://processors.wiki.ti.com/index.php/Package_Reflow_Profiles Maximum Reflow Temperature

www.jedec.org/DOWNLOAD/search/JSTD020D.pdf (but this link does not work, STD is now Rev E) attached.

J-STD-020E.pdf

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max reflow temperature of TL4051