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mmbta55-56


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                                                                                      MMBTA55
                                                                                      MMBTA56
Driver PNP                                                                                              3

                                                                                             1
                                                                                                   2

                                                                                             SOT-23
                                                                          MMBTA55       MMBTA56
                                                             V CEO          -60           -80
                                                                            -60           -80
                                                                            -4.0          -4.0
                                                                                 -5




 MMBTA55=2H, MMBTA56=2GM




                                        (3)             -
   MMBTA55                                                                            -60
   MMBTA56                                                                            -80
                                            -       0
   MMBTA55                                                                            -60
   MMBTA56                                                                            -80

                                        -       0                                     -4.0

                                            I B =0)                           S                  -0.1       u


          -6                                                    MMBTA55                          -0.1
                                                                                                            u
          -8                                                    MMBTA56                          -0.1



3.Pulse Test:Pulse Width < 300us, Duty Cycle < 2.0%
                            _                  _
4. f T is defined as the freguency at which hfeextrapolates to unity




      WEITRON
http://www.weitron.com.tw
          MMBTA55
          MMBTA56
    ELECTRICAL CHARACTERISTICS                                                                                  (T A = 25 C unles s otherwis e noted)
                                                                                        C harac teris tic                                                   S ymbol              Min               Max          Unit


     ON CHARACTERISTICS
        DC C urrent G ain
         (I C = -10 mAdc, VC E = -1.0 V dc)                                                                                                                      hF E            -100               -               -
         (I C = -100 mAdc, VC E = -1.0 V dc)                                                                                                                                     -100               -               -
        C ollector- E mitter S aturation Voltage                                                                                                             V C E (s at)         -            -0.25              V dc
           (I C = -100 mAdc, IB = -10 mAdc)
        B as e- E mitter On Voltage                                                                                                                          V B E (on)           -                -1.2           V dc
           (I C = -100 mAdc, VC E = -1.0 V dc)

    SMALL- SIGNAL CHARACTERISTICS
        C urrent- G ain - B andwidth P roduct (4)
                                                                                                                                                                 fT              50                  -          MHz
           (I C = -100 mA, VC E = -1.0 V f = 100 MHz)
                                       ,




                                      TURN-ON TIME                                                                                                                      TURN-OFF TIME
                                 -1.0 V                                                         VCC                                                              +VBB                   VCC
                                                                                                      +40 V                                                                                   +40 V

            5.0 u s                   100                                                             RL                                                                100                   RL
    +10 V                                                                                                          OUTPUT                                                                                   OUTPUT
                          Vin                             RB                                                                                          Vin                   RB
    0                                                                                                                -                                                                                        -
           tr = 3.0 n s
                            5.0 uF
                                                                                                                * CS - 6.0 pF
                                                                                                                                                            5.0 uF                                        * CS - 6.0 pF

                                      100                                                                                                                               100
                                                                                                                                          5.0 us

                                                                                                                                      tr = 3.0 ns


                                                                                        *Total S hunt C apacitance of Tes t J ig and C onnectors
                                                                                         F or P NP Tes t C ircuits , R evers e All Voltage P olarities


                                                                                                FIG1. Switching Time Test Circuits
                                          f T , CURRENT-GAIN - BANDWIDTH PRODUCT(MHz)




                                                                                        300
                                                                                               VCE = -2.0 V
                                                                                        200    TJ = 25 C




                                                                                        100

                                                                                        70

                                                                                        50


                                                                                        30
                                                                                         -2.0 -3.0         -5.0 -7.0 -10        -20 -30      -50 -70 -100        -200
                                                                                                                IC , COLLECTOR CURRENT (mA)

                                                                                               FIG2. Current-Gain - Bandwidth Product


     WEITRON
http://www.weitron.com.tw
                                                     MMBTA55
                                                     MMBTA56

                                                     100
                                                                                                                                                               1.0 k
                                                                                                                       TJ = 25 C
                                                     70                                                                                                         700
                                                                                                                                                                500
                                                     50                                           Cibo                                                                                                                                                                       ts
                                                                                                                                                                        300
           C, CAPACITANCE (pF)




                                                     30                                                                                                                 200




                                                                                                                                            t, TIME (ns)
                                                     20                                                                                                                 100
                                                                                                                                                                         70                                                                                                  tf
                                                                                                                                                                         50
                                                     10                                                                        Cobo                                                                             VCC = 40 V
                                                                                                                                                                                    30                          IC/IB = 10                                                   tr
                                                     7.0                                                                                                                            20                          IB1 = IB2
                                                                                                                                                                                                                TJ = 25 C              td @ V BE(off) = 0.5 V
                                                     5.0
                                                       -0.1 -0.2     -0.5    -1.0    -2.0     -5.0       -10    -20        -50 -100                                                 10
                                                                                                                                                                                     -5.0 -7.0 -10                                 -20 -30            -50 -70 -100       -200 -300     -500
                                                                          VR , REVERSE VOL TAGE (VOLTS)
                                                                                                                                                                                                                                  IC , COLLECTOR CURRENT (mA)
                                                                            FIG.3 Capacitance
                                                                                                                                                                                                                                  FIG4. Switching Time

                                                     400                                                                                                                      -1.0
                                                                                                                                                                                                                   TJ = 25 C
                                                               TJ = 125 C
                                                                                                                      VCE = -1.0 V                                            -0.8                                                  VBE(sat) @ I C/IB = 10
                                                     200
    hFE , DC CURRENT GAIN




                                                                                                                                              V, VOLTAGE (VOLTS)




                                                                          25 C
                                                                                                                                                                              -0.6
                                                                                                                                                                                                                                   VBE(on) @ V CE = -1.0 V
                                                                       -55 C
                                                     100                                                                                                                      -0.4
                                                      80

                                                      60                                                                                                                      -0.2
                                                                                                                                                                                                                       VCE(sat) @ I C/IB = 10

                                                      40                                                                                                                                                    0
                                                       -0.5 -1.0 -2.0        -5.0 -10       -20          -50    -100 -200         -500                                                                      -0.5     -1.0 -2.0        -5.0      -10     -20      -50     -100 -200     -500
                                                                          IC , COLLECTOR CURRENT (mA)                                                                                                                              IC , COLLECTOR CURRENT (mA)

                                                                          FIG.5 DC Current Gain                                                                                                                                    FIG6. "ON"Voltages
           VCE , COLLECTOR-EMITTER VOLTAGE (VOLTS)




                                                     -1.0                                                                                                                                                   -0.8
                                                                                                                                                                   R VB , TEMPERATURE COEFFICIENT (mV/ C)




                                                                                                                         TJ = 25 C

                                                     -0.8                                                                                                                                                   -1.2
                                                                     IC =              IC =           IC =          IC =
                                                                   -50 mA            -100 mA        -250 mA       -500 mA
                                                     -0.6                                                                                                                                                   -1.6


                                                     -0.4                                                                                                                                                   -2.0               R VB for VBE

                                                               IC =
                                                     -0.2    -10 mA                                                                                                                                         -2.4


                                                       0                                                                                                                                                    -2.8
                                                        -0.05 -0.1 -0.2      -0.5    -1.0    -2.0        -5.0    -10     -20          -50                                                                       -0.5     -1.0 -2.0       -5.0     -10      -20     -50     -100 -200      -500
                                                                                 IB , BASE CURRENT (mA)                                                                                                                                IC, COLLECTOR CURRENT (mA)

                                                                   FIG7. Collector Saturation Region                                                                                                                         FIG8. Base-Emitter Temperature
                                                                                                                                                                                                                                       Coefficient



          WEITRON
http://www.weitron.com.tw
       MMBTA55
       MMBTA56

SOT-23 Package Outline Dimensions                                           Unit:mm



                                    A                       Dim Min Max
                                                             A  0.35 0.51
                                                             B  1.19 1.80
                        T OP V IE W         B   C            C  2.10 3.00
                                                             D  0.85 1.05
                                                             E  0.46 1.00
                                D
                                                             G  1.70 2.10
                            G
              E                                              H  2.70 3.10
                            H                                J  0.01 0.13
                                                             K  0.89 1.60
                                            K                L  0.30 0.61
                                                             M 0.076 0.25
                                                    L
                                        J               M




      WEITRON
http://www.weitron.com.tw



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