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LGA Incorrect

Printed From: PCB Libraries Forum
Category: PCB Footprint Expert
Forum Name: Questions & Answers
Forum Description: issues and technical support
URL: https://www.PCBLibraries.com/forum/forum_posts.asp?TID=2691
Printed Date: 29 Nov 2024 at 4:37am


Topic: LGA Incorrect
Posted By: phil.holden
Subject: LGA Incorrect
Date Posted: 01 Oct 2020 at 3:22am
This is not possible to make with Library Expert. 


1. The lands are Rectangular. Only Square or Circle are offered. 
2. The pin count in the LGA settings isn't allowing for 4 pins x 2 sides + 3 ins x 2 sides = 14. 





Replies:
Posted By: phil.holden
Date Posted: 01 Oct 2020 at 3:30am
https://datasheet.octopart.com/LIS2DHTR-STMicroelectronics-datasheet-10837087.pdf" rel="nofollow - https://datasheet.octopart.com/LIS2DHTR-STMicroelectronics-datasheet-10837087.pdf


Posted By: Ian S
Date Posted: 01 Oct 2020 at 3:49am
Looks like a Pullback Quad Flat No-Led (PQFN) package rather than an LGA.

Ian


Posted By: Ian S
Date Posted: 01 Oct 2020 at 3:50am
*No-Lead :) 


Posted By: phil.holden
Date Posted: 01 Oct 2020 at 4:04am
I think you're right Ian S ;) Bloody manufacturers spreading mis-information.
Thanks


Posted By: Tom H
Date Posted: 01 Oct 2020 at 8:25am
Yep, it's a simple PQFN - Pullback Quad Flat No-lead component family per JEDEC and IPC. 

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Posted By: phil.holden
Date Posted: 01 Oct 2020 at 8:58am
Yes it works in the PQFN category. I was thrown by the datasheet calling it an LGA. 




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