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Device Modeling Report



COMPONENTS:
DIODE/ GENERAL PURPOSE RECTIFIER / STANDARD
PART NUMBER: 1SR139-400
MANUFACTURER: ROHM
REMARK: TC=80 C




                   Bee Technologies Inc.



     All Rights Reserved Copyright (C) Bee Technologies Inc. 2004
SPICE MODEL

*$
* PART NUMBER: 1SR139-400
* MANUFACTURER: ROHM
* VRM=400,TC=80C ,IO=1A,IFSM=40A
* All Rights Reserved Copyright (C) Bee Technologies Inc. 2004
.MODEL 1SR139-400_80C D
+ IS=25.199E-9
+ N=1.8602
+ RS=27.552E-3
+ ISR=0
+ IKF=38.914
+ ISR=0
+ CJO=23.128E-12
+ M=.38251
+ VJ=.3905
+ BV=400
+ IBV=10.000E-6
+ TT=7.4712E-6
*$



PSpice model
                                     Model description
 parameter
     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




               All Rights Reserved Copyright (C) Bee Technologies Inc. 2004
Forward Current Characteristic
Circuit Simulation Result




Evaluation Circuit


                                                 R1


                                                   0.01m


                                         V1                       D1
                                  0Vdc




                                              1SR139-400_80C


                                                      0




                     All Rights Reserved Copyright (C) Bee Technologies Inc. 2004
Forward Current Characteristic                                              Reference




             All Rights Reserved Copyright (C) Bee Technologies Inc. 2004
Comparison Graph

Circuit Simulation Result




Simulation Result

                                 Vfwd(V)              Vfwd(V)
             Ifwd(A)                                                        %Error
                               Measurement           Simulation
                       0.01           0.620                 0.620                   0.00
                       0.02           0.652                 0.654                  -0.31
                       0.05           0.700                 0.699                   0.14
                        0.1           0.740                 0.733                   0.95
                        0.2           0.768                 0.770                  -0.26
                        0.5           0.818                 0.822                  -0.49
                          1           0.872                 0.871                   0.11




                    All Rights Reserved Copyright (C) Bee Technologies Inc. 2004
Capacitance Characteristic

Circuit Simulation Result




Evaluation Circuit


                                                  V2


                                                       0Vdc

                                V2 = 400V    V1
                                V1 = 0                             D1
                                TD = 0
                                TR = 10ns
                                TF = 10ns
                                PW = 5us
                                PER = 10us        1SR139-400_80C



                                                       0




                     All Rights Reserved Copyright (C) Bee Technologies Inc. 2004
Comparison Graph

Circuit Simulation Result




Simulation Result

                                  Cj(pF)               Cj(pF)
             Vrev(V)                                                        %Error
                               Measurement           Simulation
                           0          23.314               23.314                   0.00
                         0.1          21.207               21.739                  -2.51
                         0.2          19.708               20.421                  -3.62
                         0.5          16.663               17.106                  -2.66
                           1          14.088               14.333                  -1.74
                           2          11.544               11.639                  -0.82
                           5           8.577                8.477                   1.17
                          10           6.704                6.607                   1.45
                          20           5.166                5.094                   1.39
                          50           3.616                3.605                   0.30
                        100            2.754                2.766                  -0.44




                    All Rights Reserved Copyright (C) Bee Technologies Inc. 2004
Reverse Recovery Characteristic

Circuit Simulation Result




Evaluation Circuit


                                                      R1

                                                      50

                                V2 = 10.8V   V1                      D1
                                V1 = -9.2V
                                TD = 0
                                TR = 10ns
                                TF = 10ns
                                PW = 20us
                                PER = 50us        1SR139-400_80C



                                                           0




Compare Measurement vs. Simulation

                              Measurement                      Simulation       %Error
              trr                   5.04 us                        4.97 us          1.388




                     All Rights Reserved Copyright (C) Bee Technologies Inc. 2004
Reverse Recovery Characteristic                          Reference




                                                       Measurement




Trj =2.16(us)
Trb=2.88(us)
Conditions: Ifwd=Irev=0.2(A), Rl=50




                                                           Example




                                Relation between trj and trb




                All Rights Reserved Copyright (C) Bee Technologies Inc. 2004