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All Rights Reserved Copyright (C) Bee Technologies Inc. 2004
COMPONENTS:
DIODE/ GENERAL PURPOSE RECTIFIER/ STANDARD
PART NUMBER: 1S1887
MANUFACTURER: TOSHIBA
REMARK: TC=25C
Device Modeling Report
Bee Technologies Inc.
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: 1S1887
* MANUFACTURER: TOSHIBA
* All Rights Reserved Copyright (C) Bee Technologies Inc. 2004
.MODEL 1S1887 D
+ IS=4.6505E-9
+ N=1.6665
+ RS=17.901E-3
+ IKF=2.2411
+ ISR=0
+ CJO=55.707E-12
+ M=.38303
+ VJ=.45192
+ BV=400
+ IBV=10.000E-6
+ TT=3.7222E-6
*$
All Rights Reserved Copyright (C) Bee Technologies Inc. 2004
R1
0.01m
V1
0Vdc
D1
1S1887
0
Forward Current Characteristic
Circuit Simulation Result
Evaluation Circuit
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 0.626 0.629 -0.399
0.02 0.658 0.657 0.137
0.05 0.701 0.701 -0.014
0.1 0.735 0.736 -0.082
0.2 0.765 0.764 0.092
0.5 0.810 0.810 -0.037
1 0.850 0.851 -0.165
2 0.910 0.911 -0.132
5 1.030 1.026 0.408
10 1.171 1.171 -0.034
All Rights Reserved Copyright (C) Bee Technologies Inc. 2004
V1
TD = 0
TF = 50n
PW = 5u
PER = 10u
V1 = 0
TR = 10n
V2 = 400
D1
1S1887
V2
0Vdc
0
Junction Capacitance Characteristic
Circuit Simulation Result
Evaluation Circuit
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 55.832 55.832 0.000
0.1 51.537 50.127 2.736
0.2 48.403 50.617 -4.574
0.5 41.632 42.862 -2.954
1 35.607 36.107 -1.404
2 29.252 29.375 -0.420
5 21.729 21.492 1.091
10 16.895 16.773 0.722
20 12.887 12.950 -0.489
50 8.986 9.158 -1.912
100 6.778 7.034 -3.769
All Rights Reserved Copyright (C) Bee Technologies Inc. 2004
D1
1S1887
R1
50
0
V1
TD = 0
TF = 10ns
PW = 20us
PER = 50us
V1 = -9.19V
TR = 10ns
V2 = 10.7V
Reverse Recovery Characteristic
Circuit Simulation Result
Evaluation Circuit
Compare Measurement vs. Simulation
Measurement Simulation %Error
trr 2.58 us 2.58 us 0.19
All Rights Reserved Copyright (C) Bee Technologies Inc. 2004
Reverse Recovery Characteristic Reference
Trj =1.24(us)
Trb=1.34(us)
Conditions: Ifwd=Irev=0.2(A), Rl=50
Example
Relation between trj and trb
Measurement

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1S1887 LTspice Model (Free SPICE Model)

  • 1. All Rights Reserved Copyright (C) Bee Technologies Inc. 2004 COMPONENTS: DIODE/ GENERAL PURPOSE RECTIFIER/ STANDARD PART NUMBER: 1S1887 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: 1S1887 * MANUFACTURER: TOSHIBA * All Rights Reserved Copyright (C) Bee Technologies Inc. 2004 .MODEL 1S1887 D + IS=4.6505E-9 + N=1.6665 + RS=17.901E-3 + IKF=2.2411 + ISR=0 + CJO=55.707E-12 + M=.38303 + VJ=.45192 + BV=400 + IBV=10.000E-6 + TT=3.7222E-6 *$
  • 3. All Rights Reserved Copyright (C) Bee Technologies Inc. 2004 R1 0.01m V1 0Vdc D1 1S1887 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 0.626 0.629 -0.399 0.02 0.658 0.657 0.137 0.05 0.701 0.701 -0.014 0.1 0.735 0.736 -0.082 0.2 0.765 0.764 0.092 0.5 0.810 0.810 -0.037 1 0.850 0.851 -0.165 2 0.910 0.911 -0.132 5 1.030 1.026 0.408 10 1.171 1.171 -0.034
  • 5. All Rights Reserved Copyright (C) Bee Technologies Inc. 2004 V1 TD = 0 TF = 50n PW = 5u PER = 10u V1 = 0 TR = 10n V2 = 400 D1 1S1887 V2 0Vdc 0 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 55.832 55.832 0.000 0.1 51.537 50.127 2.736 0.2 48.403 50.617 -4.574 0.5 41.632 42.862 -2.954 1 35.607 36.107 -1.404 2 29.252 29.375 -0.420 5 21.729 21.492 1.091 10 16.895 16.773 0.722 20 12.887 12.950 -0.489 50 8.986 9.158 -1.912 100 6.778 7.034 -3.769
  • 7. All Rights Reserved Copyright (C) Bee Technologies Inc. 2004 D1 1S1887 R1 50 0 V1 TD = 0 TF = 10ns PW = 20us PER = 50us V1 = -9.19V TR = 10ns V2 = 10.7V Reverse Recovery Characteristic Circuit Simulation Result Evaluation Circuit Compare Measurement vs. Simulation Measurement Simulation %Error trr 2.58 us 2.58 us 0.19
  • 8. All Rights Reserved Copyright (C) Bee Technologies Inc. 2004 Reverse Recovery Characteristic Reference Trj =1.24(us) Trb=1.34(us) Conditions: Ifwd=Irev=0.2(A), Rl=50 Example Relation between trj and trb Measurement