555 timer spice model simulation

[Anonymous]

Hey Team 🙂

Been trying to simulate a NE555N IC not been able to find a spice .mdl model to use. anyone have a model 🙂

cheers

Emanuel

[kskoeld]

Having the same problem finding something for the NE555P

[thomasedwardwilk]

Same.

I am considering just modeling it from the subcomponents, but it seems a .mdl file should be available.

[ray.jenson]

A year on, and still no .mdl file for any 555 timers that I can see. Are they really that complicated? (Legit question, no snark.)

[holger.vogt]

mdl files are spice model files. So search for a spice model of the 555 and rename it to Timer555.mdl.

See for example the model parameter page http://ngspice.sourceforge.net/modelparams.html .

A spice model used with ngspice can be found in the example file https://sourceforge.net/p/ngspice/ngspice/ci/master/tree/examples/p-to-n-examples/555-timer-2.cir. You need to copy the subcircuit beginning from

* https://www.electro-tech-o....

until and including

.ends,

put it into file Timer555.mdl, and that's it.