Help with PSPICE data and Multisim needed

Thread Starter

hunterage2000

Joined May 2, 2010
487
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:
THERM_PREAMP.CIR - THERMISTOR WITH PREAMP GAIN AND OFFSET
*
* TEMPERATURE
VTEMP    20    0    PWL(0MS 0DEG    100MS 40DEG)
RD1    10    0    1MEG
*
* SENSOR BRIDGE
VBIAS    12    0    DC    5V
XTH1    12 1  20 0   NTC_10K
RBIAS    1    0    10K
RA    12    2    10K
RB    2    0    10K
*
* 3 OPAMP INSTRUMENTATION AMPLIFIER
* GAIN STAGE
XOP1    2 4    6    OPAMP1
R1    4    6    10K
R2    4    5    17.883K
R3    5    7    10K
XOP2    1 5    7    OPAMP1
* DIFF AMP
R4    6    8    10K
R5    8    10    10K
R6    7    9    10K
R7    9    11    10K
XOP3    9 8    10    OPAMP1
VOFF    11    0    DC    2.569V
*
* MEASUREMENT ERROR
E_ERR    21    0    VALUE = { V(10)*10-V(20)}
RD2    21    0    1MEG

* THERMISTOR SUBCIRCUIT ****************************************
* thermistor terminals        :  1,2
* temperature (deg C) input+,-:    4,5
*
.SUBCKT NTC_10K   1  2  4  5
ETHERM    1 3     VALUE = {i(VSENSE)*10K*EXP( 3450/(V(4,5)+273.15)-3450/(25+273.15))}
VSENSE    3    2    DC    0
.ENDS
*
* OPAMP MACRO MODEL, SINGLE-POLE *******************************
* connections:      non-inverting input
*                   |   inverting input
*                   |   |   output
*                   |   |   |
.SUBCKT OPAMP1      1   2   6
* INPUT IMPEDANCE
RIN    1    2    10MEG
* GAIN BANDWIDTH PRODUCT = 10MHZ
* DC GAIN (100K) AND POLE 1 (100HZ)
EGAIN    3 0    1 2    100K
RP1    3    4    1K
CP1    4    0    1.5915UF
* OUTPUT BUFFER AND RESISTANCE
EBUFFER    5 0    4 0    1
ROUT    5    6    10
.ENDS
*
*
* ANALYSIS
.TRAN     1MS  100MS
*
* VIEW RESULTS
.PRINT TRAN V(1) V(10)
.PROBE
.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?
 

crutschow

Joined Mar 14, 2008
24,093
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.
 

eetech00

Joined Jun 8, 2013
1,785
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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