• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 37 subscribers
  • Views 2040 views
  • Users 0 members are here
Support feedback
Options
Options
Similar topics

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TINA/Spice/LM4041-N: Spice model question

Aaron Spaete
Expert 4412 points
Part Number: LM4041-N
Other Parts Discussed in Thread: TINA-TI

Tool/software: TINA-TI or Spice Models

Team,

My customer has the following issue. 

I’m having trouble with the LM4041-N-ADJ SPICE model. If I tie V- to GND & bias V+ positive it regulates at the programmed voltage (1.5V). However, if I tie V+ to GND & bias V- negative, it doesn’t regulate. Can you help?

I’ve attached my LTSpice file & symbol.

"lm4041-n-adj" should be an .asy and "adj shunt reg" should be an .asc extension, so please change.

lm4041-n-adj.datadj shunt reg.dat

BTW, what's the best way to post these files?  

Thanks,

Aaron

  • 0
    TI__Mastermind 41310 points

    Aaron,

    Unfortunately, we are not allowed to assist with LTSpice issues per the EULA of LTSpice.

    We did take a look at the device in TINA-TI and found that is does not work correctly when the V+ node is tied to ground.. The model is an older model that uses BJT devices and I have not found a way to make the model function in this configuration.