www.delorie.com/archives/browse.cgi   search  
Mail Archives: geda-user/2015/06/29/03:07:46

X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f
X-Recipient: geda-user AT delorie DOT com
X-Envelope-From: paubert AT iram DOT es
Date: Mon, 29 Jun 2015 09:06:33 +0200
From: "Gabriel Paubert (paubert AT iram DOT es)" <geda-user AT delorie DOT com>
To: "Dave McGuire (mcguire AT neurotica DOT com)" <geda-user AT delorie DOT com>
Subject: Re: [geda-user] PCB footprint for rectangular QFN?
Message-ID: <20150629070633.GA7678@visitor2.iram.es>
References: <558F8A49 DOT 5040002 AT neurotica DOT com>
MIME-Version: 1.0
In-Reply-To: <558F8A49.5040002@neurotica.com>
User-Agent: Mutt/1.5.21 (2010-09-15)
X-Spamina-Bogosity: Unsure
X-Spamina-Spam-Score: -1.0 (-)
X-Spamina-Spam-Report: Content analysis details: (-1.0 points)
pts rule name description
---- ---------------------- --------------------------------------------------
-1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP
0.0 URIBL_BLOCKED ADMINISTRATOR NOTICE: The query to URIBL was blocked.
See
http://wiki.apache.org/spamassassin/DnsBlocklists#dnsbl-block
for more information.
[URIs: neurotica.com]
-0.0 BAYES_20 BODY: Bayes spam probability is 5 to 20%
[score: 0.1622]
Reply-To: geda-user AT delorie DOT com
Errors-To: nobody AT delorie DOT com
X-Mailing-List: geda-user AT delorie DOT com
X-Unsubscribes-To: listserv AT delorie DOT com

    Hi,

On Sun, Jun 28, 2015 at 01:46:49AM -0400, Dave McGuire (mcguire AT neurotica DOT com) wrote:
> 
>   Hey folks!  I'm thinking of using Linear Technology's LTC4099 chip
> which comes in a rectangular 20-pad QFN, with four pads on two sides and
> six pads on the other two.
> 
>   Has anyone done up a footprint for this somewhat unusual package?

Not me, but I used gfootgen to get the starting point for Linear
Technology's LTC6950, which comes in a 48 pin rectangular QFN (16 pads
on the long sides, 8 no the short ones).

I had to add the center pad by hand in an editor, however.

    Gabriel

- Raw text -


  webmaster     delorie software   privacy  
  Copyright © 2019   by DJ Delorie     Updated Jul 2019