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DPAK with 9 pins? |
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BennsPCB 
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Joined: 30 Jan 2013 Location: Sweden Status: Offline Points: 98 |
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 Topic: DPAK with 9 pins?Posted: 29 Apr 2022 at 1:32am |
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I wonder how to build a 9 pin DPAK like Infineons PG-HSOG-8-1? The parameters are already entered in Surface Mount Calculator, but i cannot choose 9 pins. In an earlier version of Lib Expert you could export to the Designer Calculator, but that seems to be removed in Enterprise Edition 2022.3 Cheers,... /Benn
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Tom H
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Joined: 05 Jan 2012 Location: San Diego, CA Status: Offline Points: 5719 |
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Posted: 29 Apr 2022 at 8:37am |
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The Infineon PG-HSOG-8-1 Case Code cannot be created in Footprint Expert due to the irregular shaped pattern in the paste mask stencil.
 But we'll add a 9-pin version. |
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gvellet
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Joined: 26 Jun 2021 Status: Offline Points: 46 |
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Posted: 01 May 2022 at 3:18pm |
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Hi Tom,
I thought we could move any part from the calculator to the designer. Is there a reason why the DPAK cannot be moved in the designer? Are there other parts that have the same limitation? Thanks,
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Tom H
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Posted: 01 May 2022 at 3:33pm |
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If a calculator part cannot be moved to FP Designer, the best alternative is to create that footprint from scratch in FP Designer. Or open up 2 copies of the program and get x/y coordinate data from the calculator and copy to FP Designer.
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BennsPCB
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Posted: 02 May 2022 at 10:23pm |
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OK Tom. I had similar problem earlier with 7 pin DPAK and that I built in my ECAD tool, but our Library Expert Professional should never restrict us building footprints. This tool should be ahead of trends. Is there anything that says that IPC "std"-shape for paste mask won't work? Infineon's recommended paste pattern, as I see it, is just a recommendation. Cheers,... /Benn
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Tom H
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Posted: 03 May 2022 at 8:57am |
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Infineon's Paste Mask recommendation follows the irregular shape of the Thermal Pad.
That's the number 1 problem with IPC. They do not have any guidelines for irregular shaped terminal leads. They only provide data when the Terminal Leads are symmetrical. |
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Tom H
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Posted: 06 May 2022 at 8:18am |
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We added more pin configurations to the DPAK package.
Note: we count the Thermal Pad as a pin, so to create a 9-terminal DPAK you would use the 10-pin option. |
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