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Hot!Connection of thermal pad on PIC12F1571

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jrebetez
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2019/02/27 08:03:09 (permalink)
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Connection of thermal pad on PIC12F1571

Hi all,
 
I'm currently starting a new design based on a PIC12F1571. Unfortunately, I'm not able to find any information regarding the connection of the thermal pad. Is there any information available?
 
Thank you in advance for your support!
 
Regards,
 
Julien
#1

7 Replies Related Threads

    Howard Long
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    Re: Connection of thermal pad on PIC12F1571 2019/02/27 08:38:17 (permalink)
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    Typically these are Vss or occasionally not connected. Can you measure the resistance between the pad and the Vss pin? That might give you a very strong indication. I don't know about this device in particular, but other Microchip PIC QFNs I've used have the pad tied to Vss.
    #2
    Howard Long
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    Re: Connection of thermal pad on PIC12F1571 2019/02/27 08:48:43 (permalink)
    +1 (1)
    There are two interesting, but differing, accounts from Microchip documented here: http://www.picbasic.co.uk/forum/showthread.php?t=19477
     
     
     
    #3
    coffee critic
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    Re: Connection of thermal pad on PIC12F1571 2019/02/27 10:08:04 (permalink)
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    The thermal pad in this device is not electrically connected.  It only connects to the back side of the die. 

    n_*$
    #4
    Bob White
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    Re: Connection of thermal pad on PIC12F1571 2019/02/27 11:30:13 (permalink)
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    coffee critic
    The thermal pad in this device is not electrically connected.  It only connects to the back side of the die. 


    Those two statements seem to contradict each other.
    #5
    jack@kksound
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    Re: Connection of thermal pad on PIC12F1571 2019/02/27 12:37:52 (permalink)
    +1 (1)
    robertvwhite
    coffee critic
    The thermal pad in this device is not electrically connected.  It only connects to the back side of the die. 


    Those two statements seem to contradict each other.


    Only if you assume the "back side of the die" is electrically connected to the circuitry of the chip, which it may not be.
    #6
    mlp
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    Re: Connection of thermal pad on PIC12F1571 2019/02/27 12:42:56 (permalink)
    +1 (1)
    [deleted]
    post edited by mlp - 2019/02/27 12:45:23
    #7
    crosland
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    Re: Connection of thermal pad on PIC12F1571 2019/02/27 12:46:28 (permalink)
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    robertvwhite
    coffee critic
    The thermal pad in this device is not electrically connected.  It only connects to the back side of the die. 


    Those two statements seem to contradict each other.


     
    Seem fine to me.
    #8
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