Actions
Forum Thread Details
  • Replies 12 replies
  • Subscribers 176 subscribers
  • Views 884 views
  • Users 0 members are here
Related

Newbee: howto make device with 2 GND pins

Former Member

Like SOT223 a device having 2 pins internally connected in the device.

Sot224 pin 2 and 4(cooling pad) are the same.

I supposed that connecting  one pin it is also connected to the other.

However, on the board a airwire still remains. This is also true for a

sot223 device from the library.

I tried the mailto:GND@1 etc. naming, but seems not to work.

What am I doing wrong?

 

 

--

Web access to CadSoft support forums at www.eaglecentral.ca.  Where the CadSoft EAGLE community meets.

 

Parents

  •  

    "Rens" <rens.kessener@onsbrabantnet.nl> wrote in message

    news:hr22dk$oue$1@cheetah.cadsoft.de...

    Like SOT223 a device having 2 pins internally connected in the device.

    Sot224 pin 2 and 4(cooling pad) are the same.

    I supposed that connecting  one pin it is also connected to the other.

    However, on the board a airwire still remains. This is also true for a

    sot223 device from the library.

    I tried the mailto:GND@1 etc. naming, but seems not to work.

    What am I doing wrong?

     

     

     

        I was in a hurry with previous answer.

     

    I now see your problem: You defined the pads in the right way, but you are

    bothered by the fact that Eagle wants you to connect those 2 pads with a

    wire on board.

     

        From all I know, it's not possible to have 2 pins on the same signal,

    and tell Eagle that those pins are connected together IN the IC. So just

    ignore that airwire. (This is the way I would do.)

     

     

     

Reply

  •  

    "Rens" <rens.kessener@onsbrabantnet.nl> wrote in message

    news:hr22dk$oue$1@cheetah.cadsoft.de...

    Like SOT223 a device having 2 pins internally connected in the device.

    Sot224 pin 2 and 4(cooling pad) are the same.

    I supposed that connecting  one pin it is also connected to the other.

    However, on the board a airwire still remains. This is also true for a

    sot223 device from the library.

    I tried the mailto:GND@1 etc. naming, but seems not to work.

    What am I doing wrong?

     

     

     

        I was in a hurry with previous answer.

     

    I now see your problem: You defined the pads in the right way, but you are

    bothered by the fact that Eagle wants you to connect those 2 pads with a

    wire on board.

     

        From all I know, it's not possible to have 2 pins on the same signal,

    and tell Eagle that those pins are connected together IN the IC. So just

    ignore that airwire. (This is the way I would do.)

     

     

     

Children