* TL431A_models.lib * Models have been edited for LTspice syntax, but are otherwise per originals * Model developed by analogspiceman ************************************************** .subckt TL431AS A K R ; Anode Kathode Reference D1 R K Dc R1 A R 1.3e6 tc1=3m G1 A 5 R 4 1 C1 5 A 1n Rpar=600 D2 7 R Dc D3 7 4 Dn R2 7 4 950k R3 6 5 600k D4 A 6 Di C2 K 6 40p Rser=5k Rpar=1e6 G2 K 7 6 A 95m D5 A 7 2V5 D6 7 A Dk C3 7 A 50p D7 A K Dc .model Dc d Ron=10 Vfwd=0.65 Vrev=36 Epsilon=50m .model Dn d Is=1p Kf=0p2 Cjo=0p3 .model Di d Ron=10m epsilon=1m .model Dk d Ron=5k7 Vfwd=0.8 Epsilon=0.5 .model 2V5 d Ron=27m Vfwd=0.6 Epsilon=10m Vrev={Vr} revEpsilon=10m .param Vr=2.5+dt*(95u-dt*2u6) dt=temp-10 .ends TL431AS * Model developed by Eugene Dvoskin ************************************************** .subckt TL431ED A K R ; Anode Kathode Reference Q1 K R 5 0 QN_ED Q7 3 3 1 0 QP_ED D1 A 4 D_ED Q8 4 3 2 0 QP_ED R4 5 9 3k28 R2 9 12 2k4 R3 9 10 7k2 R1 14 A 800 R5 6 11 4k R7 K 1 800 R8 K 2 800 R6 13 12 1k R9 8 7 150 R10 8 A 10k D2 A K D_ED C1 K 4 10p C2 10 11 20p Q2 12 12 A 0 QN_ED area=1.2 Q3 10 12 14 0 QN_ED area=2.2 Q5 11 10 A 0 QN_ED Q9 K 4 7 0 QN_ED Q10 K 8 A 0 QN_ED area=5 Q4 3 5 6 0 QN_ED Q6 4 13 A 0 QN_ED area=0.5 Q11 4 4 R 0 QN_ED .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 Cjo=4p) .ends TL431ED * Model developed by Helmut Sennewald 6/27/2004 * This TL431 model has been developed from the schematic in the datasheet. * It agrees with most of the test circuits and covers Tempco, C-load stability, * AC gain, reverse diode, noise, transient, Zout. ************************************************** .subckt TL431AH A K R ; Anode Kathode Reference Q1 3 2 1 0 NPN1 2.7 Q2 2 2 A 0 NPN1 1 R1 1 A 800 TC1=350u ; This TC1 does the trick for the total tempco R2 4 2 2k4 R3 4 3 7k2 R4 5 4 3k28 Q3 6 3 A 0 NPN1 1 R5 7 6 4k Q4 10 5 7 0 NPN1 1 Q5 K R 5 0 NPN1 1 R6 2 12 1k Q6 11 12 A 0 NPN1 0.2 Q9 K 11 13 0 NPN1 2 Q10 K 14 A 0 NPN1 10 R10 14 A 10k R9 13 14 150 R7 K 8 800 Q7 10 10 8 0 PNP1 1 Q8 11 10 9 0 PNP1 1 D2 A K D1 D1 A 11 D3 R8 K 9 800 C1 K 11 20p C2 6 3 20p D3 11 R D2 * adjust output voltage with Is .MODEL NPN1 npn(Is= 8f Bf=100 Vaf=100 Tf=0n5 IKF=10m Kf=1e-16 Af=1 Rb=50 Re=10) .MODEL PNP1 pnp(Is=10f Bf= 50 Vaf= 50 Tf=10n IKF= 2m Kf=1e-16 Af=1) .MODEL D1 d(Is=0p1 Rs=10 Cjo=20p) .MODEL D2 d(Is=0p1 Rs=10 Cjo= 2p Bv=5 Ibv=10u) .MODEL D3 d(Is=0p1 Rs=10 Cjo= 2p) .ends TL431AH * Released by: Analog eLab Design Center, Texas Instruments Inc. * Part: TL431 * Date: 12/14/2009 * Model Type: Transient and AC ************************************************** .subckt TL431A A K R ; Anode Kathode Reference V1 1 A 2.495 R1 A 2 15.6 C1 2 A 0u5 R2 2 3 100 C2 3 4 80n R3 4 A 10 GB1 A 8 Value = {if(V(3,A)<0, 1.73*V(3,A)-1u, -1u)} D1 5 8 Dclamp D2 K 8 Dclamp V4 5 A 2 G1 A 2 1 R 0.11 .model Dclamp d (Is=13n5 Rs=25m N=1.59 Cjo=45p Vj=0.75 M=302m Tt=50n4 Bv=34 Ibv=1m) .ends TL431A