TPS40210 output variation

sakthivel s

Other Parts Discussed in Thread: TINA-TI, TL7660

hi,

15-28 VDC input and output 100 VDC with 0.1 A circuit i am getting in WEBENCH only i export simulation in to the TINA with same circuit. But, i get only 40V output. so i want same 100 V output for that what should i do.

over 9 years ago

0 JohnTucker over 9 years ago

TI__Guru**** 191445 points

I get the same results. I can see the circuit is not switching. I'll move your post to the modeling forum

Note:

Customer input the above parameters to webench. Webench exports the included TSC file. The TSC file does not seem to work properly in TINA-TI. Can you tell what is wrong?

webench_design_1225162_209.tsc

0 sakthivel s over 9 years ago in reply to JohnTucker

Intellectual 620 points

But when i increase the input voltage up to 50 V then, i can get 100 V output.

0 JohnTucker over 9 years ago in reply to sakthivel s

TI__Guru**** 191445 points

Well the TSC and webench still do not match. Let's see what the modeling team has to say about it. You probably will not hear back until after the weekend.

0 Britt Brooks - Online Design Tools over 9 years ago in reply to JohnTucker

TI__Mastermind 41310 points

I have found that the TINA-TI simulation will run correctly if you simulate for 60ms instead of the 6ms default. This simulation will take longer than the 8 minute cutoff for WEBENCH®. Switching does not start until after about 20ms. If you run the simulation in WEBENCH®, you will also see that the startup simulation only runs for 6ms and does not get to the point of switching.

0 Britt Brooks - Online Design Tools over 9 years ago in reply to Britt Brooks - Online Design Tools

TI__Mastermind 41310 points

The WEBENCH® steady state and load/line transient simulations function correctly as well.

0 sakthivel s over 9 years ago in reply to Britt Brooks - Online Design Tools

Intellectual 620 points

ya i got it simulation. now i have one more doubt. i want to make output 100VDC split into positive and negative half of that. i tried with negative voltage converter TL7660 but it can support only 10V is there any alternate.

0 JohnTucker over 9 years ago in reply to sakthivel s

TI__Guru**** 191445 points

Well, now we are into another topic. Can you post your actual requirements in a new thread? You may want to post in both isolated and non-isolated forums. Lets see if we can find the proper solution.

Simulation, hardware & system design tools

Simulation, hardware & system design tools forum

TPS40210 output variation