TO (DPAK) Thermal Tab Under Component Body

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   In the last year or so I have seen a resurgence in TO, & DPAK devices that do not have a tab (dim "L1") that protrudes beyond the body. But in the calculator you do not allow "L1" to be a negative number. So I am forced to use FP Designer for this variation on TO & DPAK's. 

So what should take me only a few minutes to calculate takes me more than 30. And even at that I am required to have supporting documentation for all parts I create, and the FP Designer output print is no where near acceptable, so I then have to spend another 30 minutes creating documentation.

Ref device: 
Manuf:TI 
PN: LMZ14201HTZ

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caclark Members Profile Send Private Message Find Members Posts Add to Buddy List Advanced User Joined: 24 Oct 2012 Location: Cincinnati, OH Status: Offline Points: 181	Post Options Post Reply Quote caclark Report Post Thanks(0) Quote Reply Topic: TO (DPAK) Thermal Tab Under Component Body Posted: 15 May 2014 at 7:46am
	In the last year or so I have seen a resurgence in TO, & DPAK devices that do not have a tab (dim "L1") that protrudes beyond the body. But in the calculator you do not allow "L1" to be a negative number. So I am forced to use FP Designer for this variation on TO & DPAK's. So what should take me only a few minutes to calculate takes me more than 30. And even at that I am required to have supporting documentation for all parts I create, and the FP Designer output print is no where near acceptable, so I then have to spend another 30 minutes creating documentation. Ref device: Manuf:TI PN: LMZ14201HTZ



chrisa_pcb Members Profile Send Private Message Find Members Posts Add to Buddy List Moderator Group Joined: 29 Jul 2012 Location: San Diego Status: Offline Points: 772	Post Options Post Reply Quote chrisa_pcb Report Post Thanks(0) Quote Reply Posted: 15 May 2014 at 10:22am
	We'll look at getting this into V2014.03, it should be an easy fix. That's scheduled for release in ~2 weeks.

Tom H Members Profile Send Private Message Find Members Posts Add to Buddy List Admin Group Joined: 05 Jan 2012 Location: San Diego, CA Status: Offline Points: 5954	Post Options Post Reply Quote Tom H Report Post Thanks(0) Quote Reply Posted: 26 Jun 2014 at 8:20am
	We updated the TO (DPAK) in V2014.05 to allow the user to enter a negative value for the tab "L1" dimension. This allows Library Expert users to create DPAK's with Thermal Tabs under the component body. http://www.ti.com/lit/ds/symlink/lmz14201h.pdf
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