Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Spice model for TL431

Status
Not open for further replies.

amtalan

Junior Member level 3
Joined
Jul 24, 2001
Messages
31
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,286
Activity points
176
tl431 spice model

Does someone have a SPICE model for the TL431/LM431/KA431 shunt regulator?

Thanks.
 

lm431 spice model

h*tp://w8w.fairchildsemi.com/models/spice/

try here
 

tl431 spice

this is how i got it


i open a new browser

go to google.com

and type lm431 spice model

sometimes caps and space between lm and the number etc make a big dif too what reply you get from an engine

google is the best
the rest use it as an engine hehehe
 

tl431 pspice

Hi, I found it in a library I discharged form TI ages ago (and now not available, I'm thinking to crate a public depository for those libraries, maybe on the FM...).

Thanks for your effort.

P.S. I agre in your opinion on Google.
 

lm431 spice

Hi,I need the TL431 Spice model too.
can you please post in FM or send to me as PM.

Thanks a lot!

Sonic
 

tl431 pspice model

hi guys,here's the model for TL431 from Intusoft:

*SRC=TL431;TL431;Voltage Ref.;;
*SYM=TL431
.SUBCKT TL431 7 6 11
* K A FDBK
.MODEL DCLAMP D (IS=13.5N RS=25M N=1.59
+ CJO=45P VJ=.75 M=.302 TT=50.4N BV=34V IBV=1MA)
V1 1 6 2.495
R1 6 2 15.6
C1 2 6 .5U
R2 2 3 100
C2 3 4 .08U
R3 4 6 10
G2 6 8 3 6 1.73
D1 5 8 DCLAMP
D2 7 8 DCLAMP
V4 5 6 2
G1 6 2 1 11 0.11
.ENDS
 

Re: tl431 pspice model

I find this post because I was researching a spice model for TL431. The model's Javier from Intusoft, it's not a good model because it can't simulate a shunt regulator for example.
But I find here a good spice model developed by Eugene Dvoskin.

I simulated a shunt regulator in LTspice with Eugene Dvoskin's Model. And it was in harmony with the theory (VZ = VREF (1 + R1/R2) + IREF*R1).

I give you the .spice
Code:
.subckt TL431ED K A ADJ
Q1 K ADJ N005 0 QN_ED
Q7 N003 N003 N001 0 QP_ED
D1 A N004 D_ED
Q8 N004 N003 N002 0 QP_ED
R4 N005 N009 3.28k
R2 N009 N012 2.4k
R3 N009 N010 7.2k
R1 N014 A 800
R5 N006 N011 4k
R7 K N001 800
R8 K N002 800
R6 N013 N012 1k
R9 N008 N007 150
R10 N008 A 10k
D2 A K D_ED
C1 K N004 10p
C2 N010 N011 20p
Q2 N012 N012 A 0 QN_ED area=1.2
Q3 N010 N012 N014 0 QN_ED area=2.2
Q5 N011 N010 A 0 QN_ED
Q9 K N004 N007 0 QN_ED
Q10 K N008 A 0 QN_ED area=5
Q4 N003 N005 N006 0 QN_ED
Q6 N004 N013 A 0 QN_ED area=0.5
Q11 N004 N004 ADJ 0 QN_ED
.model D D
.lib C:\PROGRA~1\LTC\LTSPIC~1\lib\cmp\standard.dio
.model NPN NPN
.model PNP PNP
.lib C:\PROGRA~1\LTC\LTSPIC~1\lib\cmp\standard.bjt
.model QN_ED NPN(BF=140 Cje=1p Cjc=2p Rb=40 VAF=80 VAR=50 KF=3.2e-16 AF=1)
.model QP_ED PNP(BF=60 Cje=1p Cjc=3p Rb=80 VAF=70 VAR=40)
.MODEL D_ED D(Rs=5 CJ0=4.0p)
* Model developed by Eugene Dvoskin --> "http://www.audio-perfection.com"  02/05/2012\nThis TL431 model has been developed from schematic in the datasheet\nhttp://www.ti.com/lit/ds/symlink/tl431.pdf\nIt matches most of DC, AC, Transient, Stability and Noise performance of TI TL431\nNo attempts were made to cover Temperature dependences
.backanno
.end
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top