1S1887A PSpice Model (Free SPICE Model)
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This document summarizes the specifications and simulation results for a 1S1887A general purpose rectifier diode manufactured by Toshiba. It includes the SPICE model parameters, evaluation of the forward current and junction capacitance characteristics through circuit simulation and comparison with measurements, and simulation of the reverse recovery characteristic.
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1S1887A PSpice Model (Free SPICE Model)
- 1. All Rights Reserved Copyright (C) Bee Technologies Inc. 2004 COMPONENTS: DIODE/ GENERAL PURPOSE RECTIFIER/ STANDARD PART NUMBER: 1S1887A MANUFACTURER: TOSHIBA REMARK: TC=25C Device Modeling Report Bee Technologies Inc.
- 2. All Rights Reserved Copyright (C) Bee Technologies Inc. 2004 SPICE MODEL PSpice model parameter Model description IS Saturation Current N Emission Coefficient RS Series Resistance IKF High-injection Knee Current CJO Zero-bias Junction Capacitance M Junction Grading Coefficient VJ Junction Potential ISR Recombination Current Saturation Value BV Reverse Breakdown Voltage(a positive value) IBV Reverse Breakdown Current(a positive value) TT Transit Time EG Energy-band Gap *$ * PART NUMBER: 1S1887A * MANUFACTURER: TOSHIBA * All Rights Reserved Copyright (C) Bee Technologies Inc. 2004 .MODEL 1S1887A D + IS=17.454E-12 + N=1.2498 + RS=1.0000E-6 + IKF=8.3913 + ISR=0 + CJO=8.9093E-12 + M=.34581 + VJ=.3905 + BV=400 + IBV=10.000E-6 + TT=6.0016E-6 *$
- 3. All Rights Reserved Copyright (C) Bee Technologies Inc. 2004 V1 0Vdc D1 1S1887A R1 0.01m 0 Forward Current Characteristic Circuit Simulation Result Evaluation Circuit
- 4. All Rights Reserved Copyright (C) Bee Technologies Inc. 2004 Comparison Graph Circuit Simulation Result Simulation Result Ifwd(A) Vfwd(V) Measurement Vfwd(V) Simulation %Error 0.01 0.650 0.652 -0.277 0.02 0.674 0.674 -0.045 0.05 0.705 0.704 0.156 0.1 0.730 0.727 0.438 0.2 0.750 0.749 0.133 0.5 0.778 0.779 -0.154 1 0.798 0.803 -0.576 2 0.830 0.827 0.373 5 0.862 0.861 0.116
- 5. All Rights Reserved Copyright (C) Bee Technologies Inc. 2004 V2 0Vdc D1 1S1887A 0 V1 TD = 0 TF = 50n PW = 5u PER = 10u V1 = 0 TR = 10n V2 = 400 Junction Capacitance Characteristic Circuit Simulation Result Evaluation Circuit
- 6. All Rights Reserved Copyright (C) Bee Technologies Inc. 2004 Comparison Graph Circuit Simulation Result Simulation Result Vrev(V) Cj(pF) Measurement Cj(pF) Simulation %Error 0 8.925 8.925 0.000 0.1 8.312 8.240 0.858 0.2 7.783 7.728 0.704 0.5 6.660 6.684 -0.354 1 5.568 5.732 -2.945 2 4.681 4.777 -2.040 5 3.584 3.571 0.352 10 2.895 2.860 1.206 20 2.323 2.272 2.179 50 1.734 1.690 2.498 100 1.387 1.338 3.518
- 7. All Rights Reserved Copyright (C) Bee Technologies Inc. 2004 D1 1S1887A R1 50 V1 TD = 0 TF = 10ns PW = 20us PER = 50us V1 = -9.20V TR = 10ns V2 = 10.7V 0 Reverse Recovery Characteristic Circuit Simulation Result Evaluation Circuit Compare Measurement vs. Simulation Measurement Simulation %Error trr 4.000 us 3.92 us 1.825
- 8. All Rights Reserved Copyright (C) Bee Technologies Inc. 2004 Reverse Recovery Characteristic Reference Trj =3.12(us) Trb=0.88(us) Conditions: Ifwd=Irev=0.2(A), Rl=50 Example Relation between trj and trb Measurement