LTSpice Model for UC1843A PWM IC

[rauckr]

I am an electrical engineer involved in the Power Electronics field for many years. I am new to this site. Does anyone know where I can find an LTSpice model for the UC1843A PWM IC? Any help would be greatly appreciated.

 

[alec_t]

Welcome to ETO!
You could probably use the Pspice model in this zip file .

 

[rauckr]

That looks like the unencrypted PSpice model that I had already downloaded from the TI site. I was under the impression that the syntax was different between the two simulators. Is this a model you have successfully run in LTSpice? Thanks for any help!

 

[ronsimpson]

Use LT1242 which is in the LTSPICE library.
There is a family of 8 pin swithers UC1841 through 45. The LT1241 through 45 are copies.

 

[eTech]

Hi

Here is a version of the TI UC1843A model modified for LTspice. I was downloaded from the TI website.
I only fixed the error(s) messages and didn't focus on the accuracy of the model. I would verify its behavior
before using it.

eT

 

[alec_t]

Is this a model you have successfully run in LTSpice?

No, but Etech ^^ seems to have got it working.

 

[rauckr]

eTech, thank you very much. I really appreciate the help. alec_t, I appreciate your help also!