Looking for a Spice model

Thread Starter

R!f@@

Joined Apr 2, 2009
9,749
I am looking for a spice model for the part ACS723LLCTR-10AU-T.
I cannot find it on Allegro site.

Does it exist ?
Is it easy to make one ?
 

Thread Starter

R!f@@

Joined Apr 2, 2009
9,749
I had run into a problem.
China and ebay does not seem to have this part ACS723LLCTR-10AU-T.
Does any one here got it for sale. I want around 5 pcs.
 

Thread Starter

R!f@@

Joined Apr 2, 2009
9,749
Since I cannot get it I had to rethink my design and I think I have a working solution.
But it does require a bit more coding for the PIC than with just two ADC's for Voltage and current. All I had to sacrifice was just one more ADC and use additional OP340 opamp instead of the current sensor, which I think is a much cheaper solution.
 

Thread Starter

R!f@@

Joined Apr 2, 2009
9,749
I might still like to use it in future. So I am interested.
Ur image shows bi-directional. What I need is uni-directional one
ACS723LLCTR-10AU-T.
Do you have it ? The spice. I need to use it for NI Multisim
 

eetech00

Joined Jun 8, 2013
2,498
Is it a home-brew model or an 'official' one from Allegro or elsewhere?
I checked with Allegro and they didn't have one so I modeled it myself.
I checked the model against the part. The output waveform and sensitivity is correct for both AU and AB devices. I didn't model the BW select pin, magnetic field coupling, or temperature characteristics. Its a behavioral model created using data sheets and bench tests.
 
Last edited:
Sure.

The attached zip file includes a test circuit sim.
I used a UniversalOpamp2 for the level shifter on the sim. but for the bench test, I used an LM358.

Have fun...
Hi! I need the spice model of ACS712, it's doesnt on the library, I will be gratefull with your help, thank you!
 
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