Help with PSPICE data and Multisim needed

Discussion in 'Electronics Resources' started by hunterage2000, Aug 8, 2015.

  1. hunterage2000

    Thread Starter Active Member

    May 2, 2010
    400
    0
    Has anyone made a component in Multisim using the component wizard? I want to simulate the LM25011 buck regulator so I downloaded the PSPICE files from the Texas Instruments website but none of the files have similar data to an example I used to create the THS7001 shown below.

    Code (Text):
    1. THERM_PREAMP.CIR - THERMISTOR WITH PREAMP GAIN AND OFFSET
    2. *
    3. * TEMPERATURE
    4. VTEMP    20    0    PWL(0MS 0DEG    100MS 40DEG)
    5. RD1    10    0    1MEG
    6. *
    7. * SENSOR BRIDGE
    8. VBIAS    12    0    DC    5V
    9. XTH1    12 1  20 0   NTC_10K
    10. RBIAS    1    0    10K
    11. RA    12    2    10K
    12. RB    2    0    10K
    13. *
    14. * 3 OPAMP INSTRUMENTATION AMPLIFIER
    15. * GAIN STAGE
    16. XOP1    2 4    6    OPAMP1
    17. R1    4    6    10K
    18. R2    4    5    17.883K
    19. R3    5    7    10K
    20. XOP2    1 5    7    OPAMP1
    21. * DIFF AMP
    22. R4    6    8    10K
    23. R5    8    10    10K
    24. R6    7    9    10K
    25. R7    9    11    10K
    26. XOP3    9 8    10    OPAMP1
    27. VOFF    11    0    DC    2.569V
    28. *
    29. * MEASUREMENT ERROR
    30. E_ERR    21    0    VALUE = { V(10)*10-V(20)}
    31. RD2    21    0    1MEG
    32.  
    33. * THERMISTOR SUBCIRCUIT ****************************************
    34. * thermistor terminals        :  1,2
    35. * temperature (deg C) input+,-:    4,5
    36. *
    37. .SUBCKT NTC_10K   1  2  4  5
    38. ETHERM    1 3     VALUE = {i(VSENSE)*10K*EXP( 3450/(V(4,5)+273.15)-3450/(25+273.15))}
    39. VSENSE    3    2    DC    0
    40. .ENDS
    41. *
    42. * OPAMP MACRO MODEL, SINGLE-POLE *******************************
    43. * connections:      non-inverting input
    44. *                   |   inverting input
    45. *                   |   |   output
    46. *                   |   |   |
    47. .SUBCKT OPAMP1      1   2   6
    48. * INPUT IMPEDANCE
    49. RIN    1    2    10MEG
    50. * GAIN BANDWIDTH PRODUCT = 10MHZ
    51. * DC GAIN (100K) AND POLE 1 (100HZ)
    52. EGAIN    3 0    1 2    100K
    53. RP1    3    4    1K
    54. CP1    4    0    1.5915UF
    55. * OUTPUT BUFFER AND RESISTANCE
    56. EBUFFER    5 0    4 0    1
    57. ROUT    5    6    10
    58. .ENDS
    59. *
    60. *
    61. * ANALYSIS
    62. .TRAN     1MS  100MS
    63. *
    64. * VIEW RESULTS
    65. .PRINT TRAN V(1) V(10)
    66. .PROBE
    67. .END
    The zip folder has .lib, .OLB, .DSN and .opj files but looking at the data with notepad it doesnt look like the .cir file data I used for the THS7001. Anyone know what to do?
     
  2. crutschow

    Expert

    Mar 14, 2008
    13,056
    3,245
    The two may not look similar because different levels of behavior models or abstraction were used.
    There is no "one" model for a particular device. If the model works to properly simulate the device, that's all that's needed.
     
  3. eetech00

    Active Member

    Jun 8, 2013
    652
    112
    Unfortunately, the pspice model file you need is encrypted.

    However, there is a free simulator "TINA-TI" that you can download from the TI website.
    There is also a LM25011 simulation model and reference design you can download and
    simulate in TINA-TI.
     
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