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I need Pspice model for UC1844A & TLV3011? Please can you support.

Other Parts Discussed in Thread: TLV3011, UC1844A, UC3844

I need Pspice model for UC1844A & TLV3011? Please can you support.

  • Hi,

    We do not provide the model for UCC1844A/2844A/3844A on website.

    I just googled and found maybe this page can help you.

    http://cbasso.pagesperso-orange.fr/Spice.htm

    Regards

  • Hi.

    Thank you for the prompt reply.

    Can you suggest the nearest part for which Spice model would be available ?

    -Bala

  • Hi Bala,

    What software are you using?

    I found UC3844's model in simetrix which is also a spice model.

    The code are:

    .subckt UC3844-%REF% Vout Osc Vp Comp Sense Vfb Ref Gnd
    A$U2 [U6_OUT U5_IN4] U2_OUT nand
    A$U3 [U2_OUT U7_OUT] U5_IN4 nand
    X$ARB1 R1_P Sense ARB1_OUT $$arbsourceARB1 pinnames: N1 N2 OUT
    .subckt $$arbsourceARB1 N1 N2 OUT
    B1 OUT 0 V=tanh(v(n1,n2)*1000)*2.5+2.5
    .ends
    A$U16 U12_OUT U16_OUT DA
    X$U1 Vfb Ref Vp Comp Gnd R5_N $$error_amp_2 pinnames: VINN BIAS VP VOUT VN VINP
    A$U17 U9_OUT U17_OUT DA
    A$U6 U12_OUT U6_OUT inv
    V1 S2_P 0 5V
    A$U7 U15_OUT U7_OUT delay1
    A$U15 ARB1_OUT U15_OUT AD
    A$U4 Vp U4_OUT schmitt
    A$U5 [U10_OUT U12_OUT U8_QP U5_IN4] U11_IN1 or
    A$U12 Osc U12_OUT schmitt_osc
    I2 R1_N Comp 10u
    A$U13 U11_OUT U13_OUT DA
    A$U10 U4_OUT U10_OUT inv
    A$U11 U11_IN1 U11_OUT inv_dead
    I1 Gnd I1_N 40m
    A$U18 U4_OUT U18_OUT DA
    A$VCC2 VCC2_P DIG_VCC
    D1 Comp D1_N Diode
    D2 D1_N R1_N Diode
    D3 R1_P I1_N Diode
    Q2 Vp S1_N Vout 0 N1 20
    R4 S1_N Gnd 1K
    R5 Ref R5_N 10k
    X$S4 Osc 0 U16_OUT 0 gen_switch : RON=250 ROFF=100Meg VON=3 VOFF=2 pinnames: P N CP CN
    A$U8 VCC2_P U12_OUT U8_SET U8_SET U8_QP U8_QN Toggle
    A$GND2 U8_SET DIG_GND
    R6 R5_N Gnd 10k
    A$U9 U11_IN1 U9_OUT dead
    Q1 Vout U17_OUT Gnd 0 N1 20
    X$S2 S2_P Ref U18_OUT 0 gen_switch : RON=1 ROFF=100Meg VON=3 VOFF=2 pinnames: P N CP CN
    R1 R1_P R1_N 20k
    X$S3 Vp 0 U18_OUT 0 gen_switch : RON=1.36k ROFF=30k VON=3 VOFF=2 pinnames: P N CP CN
    R2 Gnd R1_P 10k
    .ic Osc 0
    R3 I1_N Gnd 10
    X$S1 Vp S1_N U13_OUT Gnd gen_switch : RON=1 ROFF=1Meg VON=3 VOFF=2 pinnames: P N CP CN
    .model inv d_inverter
    .model or d_or
    .model DIG_GND d_pulldown strong=true out_family="FORCE5"
    .model DIG_VCC d_pullup strong=true out_family="FORCE5"
    .model toggle d_tff
    .model delay1 d_buffer rise_delay=150n fall_delay=150n
    .model dead d_buffer rise_delay=20n fall_delay=1n
    .model inv_dead d_inverter rise_delay=20n fall_delay=1n
    .model nand d_nand
    .model and d_and
    .model Diode D(IS=1.6f CJO=0.3p M=0.3 VJ=0.75 ISR=2.6n)
    .model N1 NPN BF=300 TF=0.5n CJC=0.3p VAF=100
    .model P1 PNP BF=150 TF=2n CJC=0.3p VAF=150
    .model D1 D
    .model schmitt_osc adc_schmitt in_low=1 in_high=3
    * 842/4
    .model schmitt adc_schmitt in_low=10 in_high=16
    * 843/5
    *.model schmitt adc_schmitt in_low=7.6 in_high=8.4
    .subckt gen_switch 1 2 3 4
    S1 1 2 3 4 SW
    .model SW VSWITCH RON={ron} ROFF={roff} VON={von} VOFF={voff}
    .ends
    .model AD adc_bridge in_low=2.1 in_high=2.2 rise_delay=1e-12 fall_delay=1e-12 out_family = "UNIV" out_low = 0 out_high = 5 clamp_bias=0.5 clamp_res=10
    .model DA dac_bridge out_high=5 input_load=-31p t_rise=2n t_fall=2n g_pullup=0.024 g_pulldown=0.034 g_hiz=1e-9 knee_low = 2.0 knee_high =2.75 v_smooth = 0.5 in_family="UNIV"
    .subckt $$error_amp_2 VINN BIAS VP VOUT VN VINP
    Q8 Q6_C Q6_C VN 0 N1
    Q9 Q10_B Q6_C VN 0 N1
    V1 D2_N VN 5.5
    Q10 VOUT Q10_B Q10_E 0 N1
    C1 C1_P Q10_B 270p
    D1 Q10_E VN D1
    D2 VOUT D2_N D1
    E1 C1_P 0 VOUT 0 1
    G2 VP G2_N BIAS VN 20u
    Q6 Q6_C R2_P G2_N 0 P1
    Q7 Q10_B R3_P G2_N 0 P1
    R2 R2_P VINN 2.7k
    X$S1 VP VOUT BIAS 0 gen_switch : RON=30k ROFF=1G VON=3 VOFF=2 pinnames: P N CP CN
    R3 R3_P VINP 2.7k
    .subckt gen_switch 1 2 3 4
    S1 1 2 3 4 SW
    .model SW VSWITCH RON={ron} ROFF={roff} VON={von} VOFF={voff}
    .ends
    .model N1 NPN BF=200 TF=0.15n CJC=0.3p VAF=100
    .model P1 PNP BF=150 TF=5n CJC=30p VAF=150 RB=100
    .model D1 D
    .ends
    .ends

  • Hi.

    I am using Cadence Pspice for Simulation. I think this model would help. This looks a bit helpful. I can create PSpice model from this. Let me see what I can do at.

    Thank you for the data.

    -bala