Simulation and Models Forum - Recent Threads

LM26001Q model

guillaume Vigneau — Wed, 22 May 2013 12:48:58 GMT

Hello,

I'm looking for a PSPICE model of the LM26001Q. I saw there is a model for the LM26001 but when I download it and import on PSpice, the model component has only 5 pins (instead of 17pins, according to the datasheet). Furthermore, the LM26001 model i have download is called "Average model"; does anyone can light me on this designation?

Can you help me to find a model of this component please?

Thank you very much, have a nice day!

Guillaume.

AC analysis simulation

Nitzan Oz — Mon, 20 May 2013 14:31:41 GMT

Can anyone tell me how to plot the AC transfer characteristics with two voltage generators (as input) having same frequency and Amp but different phase in TINA ?
When ever i try to simulate it shows an error : " only one input is allowed" .

Problem simulating TPS61170 at tina-ti

Yiannis Kazas — Wed, 22 May 2013 13:36:56 GMT

Hello, i tried to perform a transient analysis but an error occured associated with tps61170 model.
The error was : "TLD pin: pwpd does not match any pin of the macro component".(Please visit the site to view this file)
I uploaded the schematic, any help would be appreciated.

Exporting the webench generated simulation data

Hw47343 — Fri, 17 May 2013 13:52:16 GMT

Hi,

Might be this question would have come before, but is it possible to export webench data (after simulating the VRM) to a text file.

Kind regards,

Varindra

TINA Models for LM2623, TL4242 & MSP430G2102

Utpal — Mon, 20 May 2013 11:48:12 GMT

Hello,

Currently I need to use LM2623, TL4242 and MSP430G2102.

How and where would get the models?

if not available, can one create the required models?

Best regards,

--Utpal

Error when trying to import TPS61085 Spice model into TINA-TI

Ryan Thompson — Mon, 06 Feb 2012 19:07:30 GMT

Hi,

I have attempted to import the TPS51085 Spice model into TINA-TI, and I got the following error.

Invalid device: $CDNENCSTART. Line: #41.

$CDNENCSTART

followed by:

The circuit cannot be opened or cannote be converted to a macro.

I am running version 9 of TINA-TI. I used the New Macro Wizard, and I selected TPS61085 as the subcircuit since the wizard found more than one subcircuit in the .lib file.

Please help.

LM5010A Macromodel

Hw47343 — Tue, 14 May 2013 13:31:42 GMT

Hi,

I am looking for LM5010A macromodel to simulate my power circuit, can anybody tell how can I get this.

Kind regards,

Varindra

Tina (designsoft): small signal model, bode plot....

Bishnu Ban — Wed, 15 May 2013 12:20:40 GMT

John recommend me to use TPS54218 as a substitute simulation for TPs57112Q1.

This design is just to step down 5V to 3.3V/500mA.

problem No.1: if I use the battery as input voltage 5V start to calculate DC nodal voltage, it results a warning, operating point not be found, related mistake on switching controller (Component: U1.X_U8_U296.D_D11). I could go around this problem by replacing battery with voltage generator and defining a voltage piecewise linear.

refer the schmatics (attached file)

(Please visit the site to view this file)

Problem2 No. 2 (main problem): I like to do small signal analysis. I have to add a voltage generator (sinusoidal ) at feed back loop to calculate the ac transfer function.

response from Tina: two signals source can not be used (because there is one already on input side & second in feed back loop).

As suggested there is a slope compensation therefore simple/ideal condition is not enough for loop compensation.

Perhaps I have to buy Tina-Ti instead of free version from designsoft.

TINA TPS40055 Transient Reference Design

soo lee84680 — Thu, 16 May 2013 14:51:31 GMT

Hi, I downloaded the TINA file from the web site and simulated it.

I want to see how current limit works in the circuit, but the circuit never go current limit even if using a small resistor between Vin and ILIM pin like 1k.

Would you please tell me why it is? Thank you.

Tina spice model for LM21215A

Bishnu Ban — Wed, 15 May 2013 09:51:01 GMT

my college is looking for TINA pspice model of LM21215A or a recommendation for similar one.

I think this is from national semiconductor. It is most possible that there is no such tina model.

I am writing this on behalf of my college, because he is not on this community.

substitute model for TPS43351Q1

Bishnu Ban — Tue, 14 May 2013 08:30:12 GMT

I like to use TPS43351q1 dual outputs Step down converter/automotive applications

i.e. 6-16V input to 3.3V and 5V (e.g).

I could not find the spice model in Tina (desingsoft).

Which model can be used as a substitute ?

thanx

Bishnu

Device libraries for Altium Designer

Paul Buckman — Mon, 16 Jan 2012 21:58:42 GMT

I am having extreme difficulty in locating schematic & pcb models/ simulation models for TPS40210 & TPS61175 devices. They are pmp dc-dc converters.

Can anyone enlighten me please, do they exist? or do I have to invent them?

Regards

Paul Buckman

TPS84610 CAD Model Incorrect

Brian White — Tue, 14 May 2013 19:38:55 GMT

Hello

I am starting a project that uses the TPS84610 integrated power solution IC, and need the schematic file and footprint for use in Altium.

I used the CAD file (.bxl) from the product page and converted it for use in Altium. The resulting footprint does not match the device. Is there a possibility that the file is incorrectly labeled? Or would there be an error in the translation that I did from the CAD to Altium file?

Thanks,

Brian

NODESET – Initial bias point guess // available in TINA-TI ?!

jc maillet — Sun, 12 May 2013 00:34:44 GMT

I have a log-based Triode model that converges reasonably well at startup when running single-stage class-A sims ... when several such stages are AC-coupled together the simulator fails to find a stable OP from start ... what can I do to give the simulator a guess at startup (ie., when running a "table of DC results" sim) ?

TIA

W- bench tool functioning

anjali chugh — Thu, 02 May 2013 10:38:05 GMT

I have to use a synchronous dc-dc converter module with specifications

Min i/p V - 6V

Max i/p V- 24V

Output Voltage - 12V

Nominal input voltage - 12 V

Output current - 3A

I had tried to simulate the same using W-bench s/w , to check the efficiency at diff - diff input voltages level , but simulation not completed , most of the time error message , this component has nor range appears or in other case if i put min volateg as 9 and max as 24 then results appear and if i change input like 6 - 12 then message appears to select some other components . Please resolve my query and if my procedure is wrong somewhere then guide about that .

LP2953 pspice model

Florencio Gonz��lez — Fri, 10 May 2013 10:44:40 GMT

I'm looking for a pspice model of voltage regulator LP2953. I suppose it's difficult to find, so... Anyone can provide me with a reliable home made model or any advice to create a simplified one?

bq2004pn spice model

Gaspard Twagirayezu — Fri, 07 Oct 2011 03:50:44 GMT

I need to used the bq2004pn in my design and I cant find a PSPICE model for it. I couldnt find the Tina model either. I would appreciate any help.

Thanks,

LME49724 Pspice model - unencrypted avail??

bill kolofa — Thu, 09 May 2013 18:08:40 GMT

I downloaded the Pspice .zip folder and extracted all the files. The file where I expected the Pspice model (LME49724.lib) to reside was encrypted - not plain text. I understand that the TINA model are encrypted. Why is the Pspice model encrypted as well?? Is there an unencrypted model for this opamp??

Import the SM74611 PSPICE model into TINA-TI

higa daisuke — Thu, 18 Apr 2013 05:42:16 GMT

Hello

I cannot import the SM74611 PSPICE model into TINA.

How do you import it?

TINA TI, Can I read back emf?

Peter .L — Tue, 07 May 2013 11:19:49 GMT

Hello,

Is it possible to read the back emf of an inductor in TINA TI?

How to use the post-processor with tina?

xiaoguang zhou — Sun, 12 Aug 2012 03:56:01 GMT

I want calculate an average value and effective value and plot them on the picture, how to edit the formula about the average value and effective value with the post-processor tools? thank you for your help.

LM3409 PSpice model for Tina-TI

Ivano Bonesana — Sat, 13 Apr 2013 12:02:53 GMT

Hello,

I'm trying to import the PSpice model downloaded from the page of the component LM3409 into Tina-TI using the "New Macro Wizard".

I got this error: "Invalide device: $CDNENCSTART. Line #42."

After searching in the forum, it seems to be a problem related to the encryption of the PSpice file. Is it possible to have a Tina-TI model for this component?

Thanks.

Ivano.

LM3481 EVA board in TINA TI doesn't behave as expected

Steffen Frensch — Fri, 26 Apr 2013 18:31:14 GMT

Hi,

I've designed a TINA TI schematic for a DC/DC step-up converter based on the LM3481. Basically, it is the LM3481EVAL board with just a few minor changes.

I just can't get it working properly. Drain-Source/Gate-Source voltages seem to be correct, but all the current curves don't make sense. Also, the basic function (to create constant 12V output) doesn't work. If the input voltage is changed, the output voltage does so as well.

I would appreciate if someone could have a quick look over the project and give me a tip what the problem might be.

Thank you

Best regards,

Steffen Frensch

(Please visit the site to view this file)

Simulation models for TPS73130 and TPS79330

Go — Wed, 24 Apr 2013 07:59:30 GMT

Hi,

I got the request from my customer about simulation models for TPS73130 and TPS79330.

but I couldn't find PSPICE and TINA-TI models for them in Website.

Is there any plan to prepare them?

Or if can prepare them , How long will it take?

Regards,

LMP91000EVM Standalone Sinking Current off Arduino Uno

Bradley Feest — Mon, 15 Apr 2013 18:57:47 GMT

Hello all, this is my first time posting here, so I'm sorry if it's in the wrong location.

I"m setting up a LMP91000EVM to be controlled by an Arduino Uno (power, setup as well as providing VRef). I've gotten everything to be setup correctly, but when I connect the output from my Arduino to the VRef pin, it drops by 2 volts. I.e. If I measure the output from the Arduino without the VRef pin connected, I see 4 volts. When I connect the VRef pin and measure again, I see around 2 volts. I'm really unsure where this issue could be stemming from. Looking at the current going into the VRef pin, it's only a few mA which, according to Arduino, should be able to be sourced/sunk by the Arduino pin without any problems.

I'm fairly certain the LMP91000 is functioning correctly because if I setup a 3v power supply and connect it, I get the correct outputs. I've taken off both R6 and R7 in order to enable standalone operation, but otherwise the board is normal.

Let me know if there's any information I've left out!

Thanks for any help,

Bradley