LM2903-Q1: PSpice file not compiling

Neha Wankhade

Part Number: LM2903-Q1

Tool/software:

Hello Team,

we were trying to use below PSpice model for our simulation but enable to use due to error while importing in Ansys version 2024 R2 (Build : 2024-05-23 02:23:50)

"[error] Unable to find model '_4ORGATE'. Please check your libraries."

www.ti.com/.../LM2903-Q1

7 months ago

0 HO SIU 7 months ago

TI__Genius 11775 points

Hi Neha,

I'm not too familiar with the process of importing a PSpice model into Ansys, but the 4ORGATE is a subcircuit defined in the .lib file of the LM2903-Q1 model:

*$
.SUBCKT 4ORGATE 1 2 3 4 5 VDD VSS
E1 6 0 VALUE = { IF( ((V(1)> (V(VDD)+V(VSS))/2 ) | (V(2)> (V(VDD)+V(VSS))/2 ) | (V(3)> (V(VDD)+V(VSS))/2 ) | (V(4)> (V(VDD)+V(VSS))/2 )), V(VDD), V(VSS) ) }
R1 5 6 1
.ENDS
*$

It's possible that something changed the reference to that subcircuit to '_4ORGATE' instead of '4ORGATE' during the import.

0 Neha Wankhade 7 months ago in reply to HO SIU

Prodigy 10 points

Dear Sir,

'_4ORGATE' instead of '4ORGATE' Still not working .

Please find the generated error in below line while simulating PSpice .

Kindly help to resolve this issue.

X_U8 POR IN_RANGE EN EN CONTROL_HIZ 1V 0 4ORGATE

0 HO SIU 7 months ago in reply to Neha Wankhade

TI__Genius 11775 points

Hi Neha,

Is that all that was provided in the error? That line is just part of the netlist in the output stage subcircuit.

I was able to simulate the PSpice file from the LM2903-Q1 product page with ORCAD Capture CIS 23.1.0:

Could you make sure the .lib file is part of the configured library for your simulator?

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LM2903-Q1: PSpice file not compiling