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LMZM33603: Eaglecad package soldermask defined layout

Andrew Brahim
Prodigy 30 points
Part Number: LMZM33603

Hello, 

This is my first attempt at a solder mask defined package, as I could not find an existing LMZM power module package in the eaglecad TI libraries. I have attached the land pattern supplied by the data sheet and also the package file i've been working on (see link below). It is not completed but was wondering if the negative solder mask (white) has been done correctly thus far for the pads, as from my understanding there is metal under soldermask for all the pads on this footprint. I'm also curious as to any existing packages for this power module in other pcb s/w (e.g. Kicad). I've centered the coordinate system to the package outline and based each of the pads on the coordinates in the land pattern. 

Your help is greatly appreciated.

/cfs-file/__key/communityserver-discussions-components-files/196/2045.lmzm33603.zip

  • 0
    TI__Mastermind 19891 points

    Hi Andrew,

    I don't have eaglecad and will have to install it.

    Have you tried using the TI provided bxl CAD file with the Ultra Librarian tool?

    With the tool you should be able to use the bxl file and generate/output the footprint in several different CAD formats such as Altium, Allegro, Orcad, Eagle, Ki-CAD, Pads, and others.

    See this page for details:

    www.ti.com/.../pinout-quality

    Look for the CAD/CAE symbols section on the bottom.

    Cheers,
    Denislav

  • 0 in reply to Denislav Petkov
    Prodigy 30 points

    Thanks for redirecting me to Ultra Librarian, I was able to export and then open in Eagle.

    EDIT: As of 09/17

    After using ultra librarian to export the eagle compatible script, I ran the exported script in Eagle version 9.1.3. Symbol and Device came out alright for the most part, but the actual footprint threw a dozen errors or so, I think it had to do with the Via's all having the same name, "V". I'm not overly concerned about the vias, other than on pad 18 and 8 of this module. The real issue is that the soldermask definition became distorted on some of the pads when viewing the footprint.

    I might try to dl KiCad and attempt that instead to see what I get, in the meanwhile though:

    I finished my version of the footprint, although it only has the thermal vias on pin 18 and 8 and no tcream/bcream, Eagle script attached if anyone is interested but be advised it is a wip, includes symbol and device. 

     My attempt at lmzm33603 (in the zip file linked below):

    /cfs-file/__key/communityserver-discussions-components-files/196/mylmzm33603rev0.zip