I have been trying to use this vendor spice file, but when I try to run my simulation I get an undefined subcircuit error (see attached screenshot). However, unlike the other threads I've seen on this error, I'm not getting any information on what/where the error is occurring, so I'm at a loss as to where I should be looking for any issues. If anyone has any idea what might be going on here, it would be greatly appreciated!

 

Can we have the full schematic?

 

I've included the schematic and the other files I used here. Let me know if there's anything missing.

 

hi

Don't feel bad...the model file was badly mangled....

Try the attached model and symbol file.

 

Thanks a ton! That does appear to have fixed it. Out of curiosity, would you be able to explain the significance of the changes you made?
The main differences I'm noticing are that:

• the gen_switch subckt has been moved out of the main subckt
• each line in the main subckt using the gen_switch subckt has "params" inserted
• the "pin names" block in each line using gen_switch has been removed

Was something in the spice file fundamentally set up wrong, or is this an issue of LTspice compatibility? I'm an LTspice novice, so just trying to learn all that I can

 

Thanks a ton! That does appear to have fixed it. Out of curiosity, would you be able to explain the significance of the changes you made?
The main differences I'm noticing are that:

• the gen_switch subckt has been moved out of the main subckt
• each line in the main subckt using the gen_switch subckt has "params" inserted
• the "pin names" block in each line using gen_switch has been removed

Was something in the spice file fundamentally set up wrong, or is this an issue of LTspice compatibility? I'm an LTspice novice, so just trying to learn all that I can

That was one of the worst files i've seen...its basically unusable as downloaded. I can't believe a manufacturer would post a file like that for customers to use.

Anyway, all of the things you mentioned i changed because of mis-formatting or located in the wrong place of the file.

 

Ah I see. That's a real bummer, I'm a big fan of their parts, and haven't had any issues with the spice files for their simpler parts (FETs and diodes). I may steer away from their ICs on future projects that I need to simulate. In any case, thanks again for your help!