Pspice model for TL431/KA431

Discussion in 'Electronics Resources' started by sudharshan.panduranga, Sep 6, 2008.

  1. sudharshan.panduranga

    Thread Starter Active Member

    Apr 10, 2008
    61
    1
    Hi.... to everybody

    Is TL431 pspice model available to simulate???

    can anybody give the suggestion???
     
  2. nanovate

    Distinguished Member

    May 7, 2007
    665
    1
    Use a zener model
     
  3. AchMED

    Active Member

    Aug 5, 2008
    41
    0
    Code ( (Unknown Language)):
    1. http://www.onsemi.com/PowerSolutions/supportDoc.do?type=models&category=687
     
  4. SgtWookie

    Expert

    Jul 17, 2007
    22,182
    1,728
    Here's Texas Instruments' model for a TL431:
    Code ( (Unknown Language)):
    1.  
    2. *****************************************************************************
    3. * TL431 MACROMODEL ***************3-26-92************************************
    4. * REV N/A ****************************************************************DBB
    5. *****************************************************************************
    6. *              REFERENCE
    7. *              |  ANODE
    8. *              |  |  CATHODE
    9. *              |  |  |
    10. .SUBCKT  TL431 1  2  3
    11. V1  6  7  DC  1.4V
    12. I1  2  4  1E-3
    13. R1  1  2  1.2E6
    14. R2  4  2  RMOD 2.495E3
    15. R3  5  7  .2
    16. D1  3  6  DMOD1
    17. D2  2  3  DMOD1
    18. D3  2  7  DMOD2
    19. E1  5  2  POLY(2)  (4,2)  (1,2)  0  710  -710
    20. .MODEL RMOD RES (TC1=1.4E-5 TC2=-1E-6)
    21. .MODEL DMOD1 D (RS=.3)
    22. .MODEL DMOD2 D (RS=1E-6)
    23. .ENDS
    24.  
    Source:
    http://focus.ti.com/analog/docs/gencontent.tsp?familyId=2&genContentId=884
    From that page, ti_spice_models.zip, 55Mb
    Source contained in subfile: sloj174.zip
     
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