UCC27322 model to run on TINA

Hi,

Thanks for that. what sort of time frame I'm looking at for that TINA-TI model to come through?

Also, would that TINA-TI model (or PSpice model) work on a TINA industrial version8?

Thanks,

Abdul Nilar

Hi Britt,

I have built a circuit on the TINA-TI downloaded from TI.com and having trouble running a simulation. Basically the LED should pulse.The file is attached and I used the macro model uccx7325 as it is the closest to the ucc37322P family from my knowledge on TINA-TI.

The power mosfet in the circuit is supposed to simulate an IRFB3206 mosfet from IR.com.

I selected IRFBC32 from "model" and "tyoe"  under the component "properties". Is this correct or as close ?

ERC checks fine.AC and DC nodal analysis runs,

however running simulation gives this:

Cannot create file "". The filename, directory name, or volume label syntax is incorrect

Any advice? And how do I access tutorials on using the function generator and oscilloscope?

File attached below.

thanks

Abdul

8765.First Run.TSC

Hi Britt,

Thank you for the advice and the effort.

I am unclear as to why i left the source fault state. But running the file you attached taught me alot in a very short time.

I have another question and request: I read on the support forum, on how to import a .spi file from another manufacturer. The instructions you gave made sense and i followed them through.

-downloaded irfbsl3206pbf.spi from the ir website.

-changed the file extension to .lib and opened it in "New Macro"

-i can successfully view the spice text file generated

-Question: i am asked to select one component as more than one is detected. i selected the first option as the second option is with a 't' at the end of it and the text file that shows with it is much shorter. Is the first option sufficient?

-Question:Once it is successfully created the symbol suggested automatically is a PMOS however the component IS an NMOS as i have the datasheet to confirm. I scrolled to the NMOSE symbol and completed the macro generation. Is that ok to select the NMOSE symbol as i know it IS an NMOS even though the suggested symbol is a PMOS?

-Question: What is the difference in the symbol designation NMOSE and NMOSD? (i selected NMOSE)

I have attached the file AFTER changing the extension to .lib as i cant attach .spi files on this site.

4111.irfbsl3206pbf.lib

Thanks

Abdul

Hi Britt,

Running the circuit and viewing the waveforms have led me to a few more questions on developing this model to improve some of the key features that i am trying to accomplish.My initial circuit design that you fixed my errors on has been slightly modified further. The purpose of this drive circuit as I explained previously is to pulse the LED. That being achieved, I need to get some advice on a few things regarding my goals for this design.

I have almost all the components correctly modeled in the circuit design except for the LED. Which is this case is manufactured by Luminus devices (PT-121 Blue). It is a high power LED with basic specs being:

Forward Current 30A & Forward Voltage 4V

Now my questions to be specific relate to the LED and capacitors in my design:

1)Is there a possibility to have electrolytic capacitors in TINA-TI? If so , how do i do that.

2)Any advice on what i could do to atleast simulate a LED (high power LED) with the same ratings? Such as change settings on the LED already on the circuit maybe? If so.. what do i do about some settings that don't apply to my LED, can i leave them as is or do i make them zero?

3)The change in circuit design was to obtain faster rise times at higher currents. The change involved having multiple MOSFETs instead of one to pulse the LED. As the MOSFET driver is used to drive a NMOS MOSFET which has the final MOSFET connected to its source. The current flowing through the first MOSFET can be controlled by a source voltage and a higher current can be achieved at the gate of the second MOSFET in which the LED is connected to its drain.

The question relating to (3) above is , why is that my current through the LED cant be increased inspite of my design changes? Is there something that you could suggest ? In theory increasing the supply voltage to the first MOSFET makes no changes to the LED current.

The waveform is smoother now in operation across the LED after the modification as you can see from the TINA diagram files attached. I have attached the circuit file as well to this post for you to look at. I hope this all makes sense.

Summarizing:

Using electrolytic capacitors on TINA-TI

I need higher current through the LED and was hoping to achieve this with my design change.

How could i model a similar LED on TINA TI

Thanks

A Nilar

5466.TOTEM First Run With IRFB model & QRL Diode.TSC

RUN WITHOUT MODIFICATION TO CIRCUIT (initial circuit design)

RUN WITH THE MODIFIED CIRCUIT ATTACHED (showing lower draw at LED however a smoother pulse of the LED operation)

http://au.mouser.com/ProductDetail/Luminus-Devices/PT-121-B-C11-EPA/?qs=%2fha2pyFadug1EinW1SN%2fcQuk7wSda8GhKiuc2NcycYmI%252b%252b3WhpLznQ%3d%3d

Hi Abdul,

The below LED model might help for your design, to be able to use in TINA, you may have to delete the last two parameters mfg & Type

I got the model from below site  ( ** i don't know if it is authorized site )

http://ltwiki.org/?title=Standard.dio

Thanks & Regards

Suresh C

Hi Suresh,

Thanks for that. I took at look at the original text on the link provided. Strangley and luckily for me the only Luminus LED available on the site is the PT 121! I shall check the datasheet values for the LED and compare with the file on LTwiki.

I am not too familiar with creation of subcircuit files.. Im presuming it is with the netlist editor. Could I paste your text into the netlist editor and then follow through with a symbol creation?

Using netlist editor i got an error for your text file on TINA-TI as follows: (says .ENDS is the reason for error..)

I am new to the spice text file syntax, however good with code in general. Tp help me understand if u could answer my queries please:

Is the designation "AK" referring to the nodes of the LED ?

Is DLED A K PT_121_B the body of the subcircuit file or is the ".model... " the body of the file?

Thanks

A Nilar

Hi Nilar,

Please find the attached .TSM file (LED.TSM), you can directly place this part in your design.

Also attaching ID vss Vd graph obtain using model, it might help you.

To answer your questions:

1. You are correct A & K are LED two nodes

2. The line DLED A K PT_121 says it is diode, whose model is defined as PT_121 ( if you want to use the default diode model replace PT_121 with D )

3. .model PT_121 is the model definitions for the LED

4846.LED.TSM

Thanks & Regards

Suresh

Hi Abdul,

Its been awhile since you posted this and looks like you have already had followup conversations with Britt. In case you are still interested in this, we recently completed the translation of the UCC27322 PSpice model into TINA-TI. It is attached for your reference. It will also be released to the product folder in a few days.

UCC27322_DELAY_CHAR.TSC

Thanks,