I NEED SUBCIRCUIT MODEL FOR : TL494(PWM OSCILLATOR) AND TC4421/TC4422(MOSFET DRIVERS)

[MR. MIRANDA]

I NEED THE SUBCIRCUIT MODEL FOR THE COMPONENTS: TL494(PWM OSCILLATOR) AND TC4421/TC4422(MOSFET DRIVERS) TO SIMULATE IT IN MULTISIM, DOES ANYONE KNOWS WHERE I CAN FIND IT?

TL494 IS MANUFACTURED BY TEXAS INSTRUMENTS(THEY DO NOT HAVE IT MODEL)

TC4421/TC4422 ARE MANUFACTURED BY MICROCHIP(THEY DO NOT HAVE IT MODEL)

I'M TIRED OF LOOKING IN THE INTERNET WITHOUT RESULTS

THANKS SO LOT

My email: mario.miranda@alcoa.com.br

[lacy]

Unfortunately I don't have any of these. I do have a suggestion. You could use the Virtual Mosfet and insert the paramaters of your part. Don't know if this will help or not, but I thought I would try.

[lacy]

O.K. I just looked up the datasheet and the Mosfet driver isn't what I thought. I apologize for that. What i did find was an internakl schematic. You can take this schematic, enter it, and create your own component from that schematic. I will post it as soon as I find out how.

[lacy]

I couldn't find a way to get the image to post. If you Google for the datasheet you will find the internal schematic there. From this you could create your own component model. There is another thread in the forum that explains the procedure on how to do this.

I hope I was of some help to you.

[MR. MIRANDA]

Thanks for the help Lacy.

I have already the datasheets for its parts but i do not have much experience making models(or changing existing models)

Anyway costs me nothing to try.

thanks again

[ackirisik]

Well, i am also looking for TL494 Multisim model. I find Pspice model, LTSpice model, Proteus model and even a Electronic Workbench v5 model(which is not successfully converted) but there is no multisim model. I tried Component Wizard with no success, i changed OrCAD's TL493 pspice model a bit and tried it in component wizard and i get netlist error : Unable to interpret 'd1'.

Any suggestions?

Thanks.

*I am adding EWB 5 file and Pspice model in case of anyone wants to see. Because of ewb extension is not allowed i changed EWB 5 file's extension to ms7.

[ilja172]

Maybe it is what you are looking for

http://kazus.ru/nuke/users_files/16062009/8627364.rar

refined model tl494 for multisim

Уточненная модель tl494 для Multisim  (Ru)

[ilja172]

Also

[ackirisik]

Thank you ilja172, this seems to be what i am looking for :).

[ilja172]

It really works

http://img801.imageshack.us/f/clip2j.jpg/

http://img812.imageshack.us/f/clipo.jpg/