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buv27


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                                                                                  BUV27

                                  SILICON NPN SWITCHING TRANSISTOR

n    VERY LOW SATURATION VOLTAGE
n    FAST TURN-OFF AND TURN-ON

DESCRIPTION
High speed transistor suited for low voltage
applications.
High frequency and efficiency converters
switching regulators motor control.
                                                                                  3
                                                                              2
                                                                          1


                                                                TO-220




                                                     INTERNAL SCHEMATIC DIAGRAM




ABSOLUTE MAXIMUM RATINGS
    Symb ol                       Parameter                   Valu e                  Unit
     V CBO    Collector-base Voltage (I E = 0)                 240                     V
     V CEO    Collector-Emitter Voltage (I B = 0)              120                     V
     V EBO    Emitter-Base Voltage (I C = 0)                    7                      V
       IC     Collector Current                                 12                     A
      I CM    Collector Peak Current                            20                     A
       IB     Base Current                                      4                      A
      I BM    Base Peak Current                                 6                      A
      P tot   T otal Dissipation at T c < 25 oC                 85                     W
                                            o
      P tot   T otal Dissipation at T c < 60 C                  65                     W
                                                                                      o
     T s tg   Storage Temperature                           -65 to +175                   C
                                                                                      o
       Tj     Max. O perating Junction Temperature             175                        C



October 1995                                                                                  1/4
BUV27

THERMAL DATA
                                                                                                              o
  R thj -ca se   Thermal Resistance Junction-case                                Max           1.76               C/W


ELECTRICAL CHARACTERISTICS (Tcase = 25 oC unless otherwise specified)
  Symbo l              Parameter                           T est Con ditio ns          Min .   T yp.   Max.   Unit
                                                                       o
      I CER      Collector Cut-off            V CE = 240V T c = 125 C                                   3     mA
                 Current (R BE = 50)
                                                                                  o
      I CEX      Collector Cut-off            V CE = 240V VBE = -1.5V Tc = 125 C                        1     mA
                 Current
      I EBO      Emitter Cut- off Current     V EB = 5 V                                                1     mA
                 (I C = 0)
 V CEO(sus)  Collector-Emitter                I C = 0.2mA      L = 25mH                120                        V
             Sustaining Voltage
      V EBO      Emitter-Base Voltage         I E = 50mA                                7              30         V
                 (I C = 0)
  V CE(sat)      Collector-Emitter            I C = 4A           IB = 0.4A                             0.7        V
                 Saturation Voltage           I C = 8A           IB = 0.8A                             1.5        V
  V BE(sat )     Base-Emitter                 I C = 8A           IB = 0.8A                              2         V
                 Saturation Voltage
                 RESISTIVE L OAD
       t on      Turn-on Time                 V CC = 90V          IC = 8A                       0.4     0.8       ms
        ts       Storage Time                 V BE = - 6V         I B1 = 0.8A                   0.5     1.2       



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