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irfm120a


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Advanced Power MOSFET                                                   IRFM120A
 FEATURES
                       IEEE802.3af Compatible
                                                                       BVDSS = 100 V
 ! Avalanche Rugged Technology
 ! Rugged Gate Oxide Technology
                                                                       RDS(on) = 0.2 !
 ! Lower Input Capacitance                                             ID = 2.3 A
 ! Improved Gate Charge
 ! Extended Safe Operating Area
                                                                        SOT-223
 ! Lower Leakage Current : 10 #A (Max.) @ VDS = 100V
 ! Lower RDS(ON) : 0.155 ! (Typ.)                                                       2


                                                                               1
                                                                                    3




                                                                       1. Gate 2. Drain 3. Source

 Absolute Maximum Ratings
    Symbol                   Characteristic                           Value                 Units
     VDSS       Drain-to-Source Voltage                               100                     V
                Continuous Drain Current (TA=25%)                     2.3
      ID                                                                                      A
                Continuous Drain Current (TA=70%)                     1.84
      IDM       Drain Current-Pulsed                 &                18                      A
      VGS       Gate-to-Source Voltage                                "20                     V
      EAS       Single Pulsed Avalanche Energy       '                123                    mJ
      IAR       Avalanche Current                    &                2.3                     A
      EAR       Repetitive Avalanche Energy          &                0.24                   mJ
     dv/dt      Peak Diode Recovery dv/dt            (                6.5                   V/ns

      PD        Total Power Dissipation (TA=25%) *                    2.4                    W
                Linear Derating Factor *                             0.019                  W/%
                Operating Junction and
   TJ , TSTG                                                      - 55 to +150
                Storage Temperature Range
                                                                                             %
                Maximum Lead Temp. for Soldering
      TL                                                              300
                Purposes, 1/8" from case for 5-seconds



 Thermal Resistance
    Symbol                   Characteristic                  Typ.             Max.          Units
     R$JA                  Junction-to-Ambient *              --               52           %/W

* When mounted on the minimum pad size recommended (PCB Mount).



                                                                                              Rev. C
                                                                                         N-CHANNEL
IRFM120A                                                                               POWER MOSFET

 Electrical Characteristics (TA=25% unless otherwise specified)
 Symbol                  Characteristic           Min. Typ. Max. Units            Test Condition
  BVDSS      Drain-Source Breakdown Voltage        100    --     --    V     VGS=0V,ID=250#A
.BV/.TJ      Breakdown Voltage Temp. Coeff.         --   0.12    --    V/%   ID=250#A     See Fig 7
  VGS(th)    Gate Threshold Voltage                2.0    --    4.0    V     VDS=5V,ID=250#A
             Gate-Source Leakage , Forward          --    --    100          VGS=20V
   IGSS                                                                nA
             Gate-Source Leakage , Reverse          --    --    -100         VGS=-20V
                                                    --    --     1           VDS=30V                  -
   IDSS                                                                #A    VDS=100V
             Drain-to-Source Leakage Current        --    --    10
                                                    --    --    100          VDS=80V,TA=125%

             Static Drain-Source
  RDS(on)                                           --    --    0.2    )     VGS=10V,ID=1.15A         +
             On-State Resistance
    gfs      Forward Transconductance               --   3.12    --    S     VDS=40V,ID=1.15A         +
   Ciss      Input Capacitance                      --   370    480
                                                                             VGS=0V,VDS=25V,f =1MHz
   Coss      Output Capacitance                     --    95    110    pF
                                                                                   See Fig 5
   Crss      Reverse Transfer Capacitance           --    38    45
   td(on)    Turn-On Delay Time                     --    14    40
                                                                             VDD=50V,ID=9.2A,
     tr      Rise Time                              --    14    40
                                                                       ns    RG=18)
   td(off)   Turn-Off Delay Time                    --    36    90
                                                                                  See Fig 13      +,
     tf      Fall Time                              --    28    70
    Qg       Total Gate Charge                      --    16    22           VDS=80V,VGS=10V,
   Qgs       Gate-Source Charge                     --   2.7     --    nC    ID=9.2A
   Qgd       Gate-Drain("Miller") Charge            --   7.8     --          See Fig 6 & Fig 12 + ,


 Source-Drain Diode Ratings and Characteristics
 Symbol                  Characteristic           Min. Typ. Max. Units            Test Condition
    IS       Continuous Source Current              --    --    2.3          Integral reverse pn-diode
                                                                       A
   ISM       Pulsed-Source Current            &     --    --    18           in the MOSFET
   VSD       Diode Forward Voltage            +     --    --    1.5    V     TJ=25%,IS=2.3A,VGS=0V
    trr      Reverse Recovery Time                  --    98     --    ns    TJ=25%,IF=9.2A
   Qrr       Reverse Recovery Charge                --   0.34    --    #C    diF/dt=100A/#s        +

 Notes ;
 & Repetitive Rating : Pulse Width Limited by Maximum Junction Temperature
 ' L=35mH, IAS=2.3A, VDD=25V, RG=27), Starting TJ =25%
 ( ISD*9.2A, di/dt*300A/#s, VDD*BVDSS , Starting TJ =25%
 + Pulse Test : Pulse Width = 250#s, Duty Cycle * 2%
 , Essentially Independent of Operating Temperature
 - Adjusted for Cisco
          N-CHANNEL
        POWER MOSFET                                                                                                                                                                                         IRFM120A
                                                               Fig 1. Output Characteristics                                                                                             Fig 2. Transfer Characteristics
                                                            VGS
                                                  Top :     15V
                                                            10 V
                                                           8.0 V
                                                                                                                                                                      11
                                                                                                                                                                      0
                                           11
                                            0              7.0 V
                  ID , Drain Current [A]




                                                                                                                     ID , Drain Current [A]
                                                           6.0 V
                                                           5.5V
                                                           5.0 V
                                                  Bottom : 4.5V
                                                                                                                                                                                      1 0 oC
                                                                                                                                                                                       5


                                                                                                                                                                      10
                                                                                                                                                                      0
                                           10
                                            0                                                                                                                                     2 oC
                                                                                                                                                                                   5                                    @Nts:
                                                                                                                                                                                                                          oe
                                                                                                                                                                                                                         1 V =0V
                                                                                                                                                                                                                          . GS
                                                                                  @Nts:
                                                                                    oe                                                                                                                                   2 V =4 V
                                                                                                                                                                                                                          . DS 0
                                                                                   1 20" PleTs
                                                                                    . 5 s us et
                                                                                                                                                                                                    - 5 oC
                                                                                                                                                                                                       5                 3 20" PleTs
                                                                                                                                                                                                                          . 5 s us et
                                                                                   2 T = 2 oC
                                                                                    . A 5
                                                                                                                                                                       -1
                                                                                                                                                                      10
                                            1 -1
                                             0                               10
                                                                              0                        11
                                                                                                        0                                                                   2                   4                 6               8          10
                                                                   VDS , Drain-Source Voltage [V]                                                                                              VGS , Gate-Source Voltage [V]



                                                     Fig 3. On-Resistance vs. Drain Current                                                                                     Fig 4. Source-Drain Diode Forward Voltage
                                           04
                                            .




                                                                                                                          IDR , Reverse Drain Current [A]
Drain-Source On-Resistance




                                                                                   V =1 V
                                                                                       0                                                                              11
                                                                                                                                                                      0
                                           03
                                            .                                       GS
        RDS(on) , [ #]




                                           02
                                            .

                                                                                                                                                                      10
                                                                                                                                                                      0
                                                                                             V =2 V
                                                                                              GS 0
                                           01
                                            .
                                                                                                                                                                                                                            @Nts:
                                                                                                                                                                                                                              oe
                                                                                                                                                                                  1 0 oC
                                                                                                                                                                                   5                                         1 V =0V
                                                                                                                                                                                                                              . GS
                                                                                                            o
                                                                                               @Nt :T =2 C
                                                                                                 oe J 5                                                                                 2 oC
                                                                                                                                                                                         5                                   2 20" PleTs
                                                                                                                                                                                                                              . 5 s us et
                                           00
                                            .                                                                                                                         1 -1
                                                                                                                                                                       0
                                              0                     10             20             30            40                                                       04.       06
                                                                                                                                                                                   .       .
                                                                                                                                                                                           08       .
                                                                                                                                                                                                    10       12
                                                                                                                                                                                                             .         14
                                                                                                                                                                                                                       .     .
                                                                                                                                                                                                                             16    18
                                                                                                                                                                                                                                   .    20
                                                                                                                                                                                                                                        .    22
                                                                                                                                                                                                                                             .
                                                                         ID , Drain Current [A]                                                                                            VSD , Source-Drain Voltage [V]


                                                Fig 5. Capacitance vs. Drain-Source Voltage                                                                                     Fig 6. Gate Charge vs. Gate-Source Voltage
                                           60
                                            0
                                                                                  C =C +C (C =sotd)
                                                                                   iss gs gd ds h r e
                                                                                  C =C +C                                                                                                            V =2 V
                                                                                                                                                                                                      DS 0
                                                          C iss                    oss ds gd
                                                                                  C =C                                                                                 10
                                                                                   rss gd                                                                                                           V =5 V
                                                                                                                                                                                                        0
                                                                                                                                                                                                     DS
                                                                                                                                      VGS , Gate-Source Voltage [V]
             Capacitance [pF]




                                           40
                                            0                                                                                                                                                    V =8 V
                                                                                                                                                                                                  DS 0

                                                          C oss


                                                                                                                                                                           5
                                                                                                  @Nts:
                                                                                                    oe
                                           20
                                            0                                                      1 V =0V
                                                                                                    . GS
                                                          C rss
                                                                                                   2 f=1Mz
                                                                                                    .    H


                                                                                                                                                                                                                               @Nts:I =92A
                                                                                                                                                                                                                                oe   D  .
                                            00                                                                                                                             0
                                            10                                          11
                                                                                         0                                                                                  0                   5                 10              15         20
                                                                   VDS , Drain-Source Voltage [V]                                                                                              QG , Total Gate Charge [nC]
                                                                                                                                                                                                                        N-CHANNEL
          IRFM120A                                                                                                                                                                                                    POWER MOSFET


                                            Fig 7. Breakdown Voltage vs. Temperature                                                                                                       Fig 8. On-Resistance vs. Temperature
Drain-Source Breakdown Voltage       12
                                      .                                                                                                                                         30
                                                                                                                                                                                .


                                                                                                                                                                                25
                                                                                                                                                                                .




                                                                                                                                     Drain-Source On-Resistance
      BVDSS , (Normalized)




                                                                                                                                        RDS(on) , (Normalized)
                                     11
                                      .
                                                                                                                                                                                20
                                                                                                                                                                                .


                                     10
                                      .                                                                                                                                         15
                                                                                                                                                                                .


                                                                                                                                                                                10
                                                                                                                                                                                .
                                     09
                                      .                                                                      @Nts:
                                                                                                               oe                                                                                                               @Nts:
                                                                                                                                                                                                                                  oe
                                                                                                              1 V =0V
                                                                                                               . GS                                                                                                              1 V =1 V
                                                                                                                                                                                                                                  . GS 0
                                                                                                                                                                                05
                                                                                                                                                                                .
                                                                                                              2 I =20"
                                                                                                               . D 5 A                                                                                                           2 I =46A
                                                                                                                                                                                                                                  . D .

                                     08
                                      .                                                                                                                                         00
                                                                                                                                                                                .
                                        7
                                       -5      -0
                                                5    -5
                                                      2                      0         25      50     75    10
                                                                                                             0      15
                                                                                                                     2    10
                                                                                                                           5    15
                                                                                                                                 7                                               -5
                                                                                                                                                                                  7        5
                                                                                                                                                                                           -0   -5
                                                                                                                                                                                                2          0   25    50    75   10
                                                                                                                                                                                                                                0    15
                                                                                                                                                                                                                                     2    10
                                                                                                                                                                                                                                          5    15
                                                                                                                                                                                                                                               7
                                                       TJ , Junction Temperature [oC]                                                                                                            TJ , Junction Temperature [oC]



                                                    Fig 9. Max. Safe Operating Area                                                                            Fig 10. Max. Drain Current vs. Ambient Temperature
                                                                                                                                                                                25
                                                                                                                                                                                .
                                     12
                                      0
                                                                        Oeaini Ti Ae
                                                                         prto n hs ra
                                                                        i L m t d b R DS(on)
                                                                         s iie y
                                                                                                                                                                                20
                                                                                                                                                                                .
            ID , Drain Current [A]




                                                                                                                                                       ID , Drain Current [A]
                                                                                                                            1 "
                                                                                                                             0 s
                                     11
                                      0                                                                          10"
                                                                                                                  0 s
                                                                                                              1ms                                                               15
                                                                                                                                                                                .
                                                                                                       1 m
                                                                                                        0 s
                                                                                                    10m
                                                                                                     0 s
                                     10
                                      0
                                                                                              DC                                                                                10
                                                                                                                                                                                .

                                                          @Nts:
                                                            oe
                                     1 -1
                                      0                    1 T = 2 oC
                                                            . A 5                                                                                                               05
                                                                                                                                                                                .
                                                                  2 T = 1 0 oC
                                                                   . J 5
                                                                  3 Snl Ple
                                                                   . ige us
                                     1 -2 -1
                                      0                                                                                                                                         00
                                                                                                                                                                                .
                                        10                                   10
                                                                              0                       11
                                                                                                       0                   12
                                                                                                                            0                                                     25            50             75         0
                                                                                                                                                                                                                          10         2
                                                                                                                                                                                                                                     15        5
                                                                                                                                                                                                                                               10
                                                       VDS , Drain-Source Voltage [V]                                                                                                            TA , Ambient Temperature [oC]



                                                                                                                         Fig 11. Thermal Response
                                                                                 102
                                                          Thermal Response




                                                                                            D=0.5

                                                                                 101    0.2
                                                                                                                                                                                     @ Notes :
                                                                                        0.1
                                                                                                                                                                                       1. Z! A (t)=52 o C/W Max.
                                                                                                                                                                                            J
                                                                                        0.05                                                                                           2. Duty Factor, D=t1 /t2
                                                                                                                                                                                       3. TJ M -TA =PD M *Z! A (t)
                                                                                                                                                                                                            J
                                                                                        0.02
                                                                                 100
                                                             (t) ,




                                                                                        0.01
                                                                                                                                                                                       PDM

                                                                                                                                                                                                     t1
                                                          Z JA
                                                                    !




                                                                                                       single pulse                                                                                       t2
                                                                              10- 1
                                                                                  10- 5             10- 4        10- 3      10- 2    10- 1                                           100        101            102        103
                                                                                                        t1 , Square Wave Pulse Duration                                                              [sec]
    N-CHANNEL
  POWER MOSFET                                                                                                               IRFM120A
                                                 Fig 12. Gate Charge Test Circuit & Waveform



             * Current Regulator "
                                                                                   VGS
                                                      Same Type
                                50K!                   as DUT                                                         Qg
 12V              200nF
                                        300nF                                      10V

                                                                             VDS
                                 VGS                                                            Qgs                   Qgd


                                                      DUT
       3mA
                                       R1                    R2

                           Current Sampling (IG)     Current Sampling (ID)
                                                                                                                           Charge
                                 Resistor                  Resistor




                                            Fig 13. Resistive Switching Test Circuit & Waveforms

                                                        RL
                            Vout                                                   Vout
                                                                                            90%
                          Vin                                     VDD
                                                             ( 0.5 rated VDS )
                RG
                                             DUT                                          10%
                                                                                   Vin
10V
                                                                                                 td(on)          tr                 td(off)
                                                                                                                                                      tf
                                                                                                          t on                                t off




                                   Fig 14. Unclamped Inductive Switching Test Circuit & Waveforms

                                                                                                   1                 BVDSS
                                                LL                                          EAS = ---- LL IAS2 --------------------
                          VDS                                                                      2             BVDSS -- VDD
 Vary tp to obtain                              ID                                 BVDSS
 required peak ID                                                                    IAS

                RG                                       C            VDD                                             ID (t)
                                            DUT
                                                                                     VDD                                                                          VDS (t)
10V
                     tp                                                                                                 tp                                 Time
                                                                                    N-CHANNEL
IRFM120A                                                                          POWER MOSFET


                 Fig 15. Peak Diode Recovery dv/dt Test Circuit & Waveforms



                            DUT                +

                                              VDS

                                               --

                               IS
                                                                 L


                            Driver
                 VGS
                       RG                  Same Type
                                             as DUT                               VDD

          VGS                                 



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