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TPS51116 and TPS53353 Solder Profile

ssrkvk
Prodigy 20 points

Hi,

I need several solder profiles of your items, part names are TPS51116PWP and TPS53353DQPT.

Is there a document describing the temperature profile for soldering these chips onto PCB? 

I see that they have MSL Rating/Peak Reflow Level-2-260C-1 YEAR(Moisture Level 2, Peak Reflow Temperature of 260C).  However I have not been able to find how long at soak (min duration) and at peak (max duration).

I've looked for these files, but I couldn't.

Would you send me the solder profile files? or tell me where can I find them.

Thanks in advance,

Serap

  • 0
    TI__Guru**** 191445 points

    Reflow profiles are dependent on numerous factors including package type, number of components, board layers, board size, reflow oven accuracy and process and more.

    Because of the number of variables it is not possible to provide a single reflow profile that is representative of every board using a specific package type. Typically manufacturing houses have reflow profiles in place and modify them for specific hardware.

    For optimal reflow results in achieving consistent solder joint geometries the reflow profile should be developed in cooperation with the solder paste supplier and with the equipment supplier as needed. The solder paste vendor's datasheet includes recommendation for reflow profiles based on alloy melting temperatures and flux activity. These recommendations must be followed to achieve optimal flux activity resulting in wetting of the lead surface. The flux activity in the solder paste plays an important role in facilitating solder wetting resulting in consistent solder joint geometries.

    In the event SnPb or Sn lead finish are compared to NiPdAu solder joint geometries, be aware there are distinct but acceptable different solder joint geometries for NiPdAu lead finish.

    For reference you could look at the following:

    http://www.ti.com/lit/an/szza024/szza024.pdf

    http://www.ti.com/general/docs/lit/getliterature.tsp?baseLiteratureNumber=SLUA271&fileType=pdf