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TLV9002: pspice model error

Toshiro Imi
Expert 6260 points
Part Number: TLV9002
Other Parts Discussed in Thread: TINA-TI

hello,

While I have ran pspice simulation by using TLV9002S -Rev A model, the simulation was stopped by following Error message.

"ERROR(ORPSIM-15141): Less than 2 connections at node X_U2.XU2.N4."

I have checked the model file and found out N4 node in a sub-circuit CNTL_0 seems opened.

Please help me out how to run the pspice simulation. 

.SUBCKT CNTL_0 EN_IN VCC VEE MID OUT

.PARAM VSMAX = 6

.PARAM VSMIN = 1.7

.PARAM ENLH = 0.8

E1 N1 MID VALUE = {IF(V(VCC,VEE)<=VSMAX & V(VCC,VEE)>=VSMIN & V(EN_IN,VEE)>=ENLH, 1, 0)}

RS1 N1 N2 10K

RS2 N1 N3 600

D1 N2 N3 DD

C1 N2 MID 10N

VREF NR MID 0.5

GCOMP MID OUT VALUE = {0.5*(SGN(V(N2,NR)) - ABS(SGN(V(N2,NR))) + 2)}

R1 N4 OUT 1M

C2 OUT MID 1P

.MODEL DD D RS=0.001 N = 0.001

.ENDS CNTL_0

best regards,

  • 0
    Guru 140200 points

    Hi Toshiro,

    what simulator do you use?

    Kai

  • Former Member
    0 Former Member

    Hello Toshiro-san,

    I am sorry to hear about your problem.  Unfortunately, this is an issue with the TLV9002S model that we uncovered very recently.  I agree with your assessment.  Though I do not think it is critical to the model, it is difficult to determine the full intent of this portion of the model based off the limited information in it.  I am reaching out to those most closely involved in the model's development to figure out why this is in the model and how to best deal with this.

    In the meantime, I would recommend the following potential work around solutions:

    1.  Use the TLV9002 model in PSPICE.  The parts are essentially the same with the same specifications.

    2.  Use the TLV9002S model in TINA-TI, where the model seems to work fine for whatever reason.

    3.  Comment out the problematic line in the TLV9002S model and run the simulation in PSPICE.  I do not think this portion of the model is critical, but I need to verify.

    Thank you for bringing this to our attention.  I will continue to work on this in the meantime.

    Regards,

    Daniel

  • 0 in reply to Former Member
    TI__Expert 6260 points

    Thank you very much for your help. I have ran a pspice simulation by using TLV9002 model and it works correctly. I will use TLV9002 model instead of TLV9002S, so my issue is resolved.

    Best regards,

  • Former Member
    0 Former Member in reply to Toshiro Imi

    Hello Imi-san,

    I am happy to hear that.  I am working on fixing the model in PSPICE in the meantime.

    Regards,

    Daniel