Add footprints for Cyntec DC/DC modules MUN12AD0x-SH

[rleh]

• QFN-8-1EP footprint for Cyntec power module MUN12AD01-SH
  • Datasheet: http://www.cyntec.com/upfile/products/download/Cyntec%20MUN12AD01-SH_Datasheet.pdf
  • 
• QFN-8-3EP footprint for Cyntec power module MUN12AD03-SH
  • Datasheet: http://www.cyntec.com/upfile/products/download/Cyntec%20MUN12AD03-SH_Datasheet.pdf
  • 

[poeschlr]

The generic library dfn/qfn library is only allowed to hold generic footprints created with the ipc generators found here https://github.com/pointhi/kicad-footprint-generator/tree/master/scripts/Packages/Package_NoLead__DFN_QFN_LGA_SON (suggested footprint is to be ignored)

Specialized footprints should go into more specialized libraries.

And as this really does not look like a DFN package but more like a pcb that happens to emulate a similar land pattern to a no lead package. Which means i would place it into the DC/DC converter lib.

Edit: which means i am not even sure i would mention DFN in the footprint name. it definetly is not a QFN!

[poeschlr]

The fab outline must represent the nominal body size, the courtyard clearance must be 0.25mm all around.

[rleh]

Thanks for reviewing!

I would move the footprints to Converter_DCDC.pretty/Converter_DCDC_Cyntec_MUN12AD0{1,3}-SH.kicad_mod, ok?

[rleh]

Here are drawings of the fixed Fab-layer outline and courtyard clearances:

[rleh]

The 3D model reference for both footprints is ${KISYS3DMOD}/Converter_DCDC.3dshapes/Converter_DCDC_Cyntec_MUN12AD0x-SH.wrl, because the 3D models are identical.

[poeschlr]

I would suggest moving silk a bit closer to the part outline such that it is more useful for aligning the part.

[rleh]

Ok.

[poeschlr]

thanks