TLV758P: Pspice error - Expecting Keyword STIMULUS, saw VDC

Hi Carlene, 

Thank you for reaching out. 

What is the Vout you are trying to achieve? Also, can you share your schematics? 

Here is how to set Vout: 

Best, 

Edgar Acosta

Looks like the files I tried to attach, didn't attach. Yes I used the Typical application notes to build my circuit. 

Hi Carlene, 

I see from your schematic that R1 and R2 are 0 ohms: 

Can you make R1=50kOhms and R2=10kOhms? This should provide a Vout~3.3V

Best, 

Edgar Acosta

The Zero Ohm Resistors, was just something I did to trouble shoot the circuit. I tried 50K and 10K just to verify an output initially and i still only got mV and that weird error. I need a stable 4.4V output.

Hi Carlene, 

Thank you for the clarification. I just downloaded the model from the product page and no issues running the simulation: 

Are you using the unencrypted model, and have you made any changes to the files, besides the schematics? 

Best, 

Edgar Acosta

I don’t think so. I typically use ADS for most of my modeling at work. But I really wanted to simulate with the TI defined part so decided to do it in Pspice.  I would say I am still a beginner as far as pspice is concerned and I am not sure how I would make changes to the file. One difference I see right away is the third resistor in your model.

Also I downloaded the Pspice for TI and used the model that was available in that instance. Should I download it from the product page website?

Hi Carlene, 

The 3rd resistor is mainly to set a Load. Also, after running the simulation, a separate window should open showing the simulation results. Don't rely on the displayed values shown on the schematic. 

Lastly:

Carlene Goodbody said:

Should I download it from the product page website?

Yes, it is recommended to download the model directly from the product page. You can download both, encrypted and unencrypted models here : TLV758P data sheet, product information and support | TI.com

After you download the unencrypted version, simply copy and paste the .LIB file to replace the one inside the encrypted version. 

Best, 

Edgar Acosta