BUX87

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HIGH VOLTAGE SILICON POWER TRANSISTOR

■

SGS-THOMSON PREFERRED SALESTYPE

■

NPN TRANSISTOR

■

HIGH VOLTAGE CAPABILITY (450V V

CEO

)

■

MINIMUM LOT-TO-LOT SPREAD FOR RELIABLE OPERATION

■

HIGH DC CURRENT GAIN

APPLICATIONS

■

FLYBACK AND FORWARD SINGLE

TRANSISTOR LOW POWER CONVERTERS

DESCRIPTION

The BUX87 is manufactured using High Voltage Multi Epitaxial Planar technology for high switching speeds and high voltage withstand capability.

INTERNAL SCHEMATIC DIAGRAM

ABSOLUTE MAXIMUM RATINGS

Symbol Parameter Value Unit

3 21

SOT-32

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THERMAL DATA

R

t hj-ca se

R

t hj- amb

Thermal Resistance Junction-case Max

Thermal Resistance Junction-ambient Max

3.12 100

o

C/W

o

C/W

ELECTRICAL CHARACTERISTICS (T

case

= 25

^o

C unless otherwise specified)

Symb ol Parameter Test Cond ition s Mi n. Typ . Max. Un it

I

CEV

Collect or Cut-off Current (V

BE

= -1.5V)

V

CE

= 1000 V

V

CE

= 1000 V T

j

= 125

^o

C

100 1

µA

mA I

EBO

Emitt er Cut-off Current

(I

C

= 0)

V

EB

= 5 V 1 mA

V

CEO (sus)

Collect or-Emitter Sustaining Voltage

I

C

= 100 mA 450 V

V

_BEO

Collect or-Base Sustaining Voltage

I

_C

= 10 mA 5 V

V

CE(sat )∗

Collect or-Emitter Saturat ion Voltage

I

C

= 0. 1 A I

B

= 0.01 A I

C

= 0. 2 A I

B

= 0.02 A

0.8 1

V V V

BE(s at)∗

Base-Emitt er

Saturat ion Voltage

I

C

= 0. 2 A I

B

= 0.02 A 1 V

h

FE∗

DC Current G ain I

C

= 50 mA V

CE

= 5 V

I

C

= 40 mA V

CE

= 5 V 12

50 f

T

Transit ion F requency I

C

= 50 mA V

CE

= 10 V f =1MHz 20 MHz

t

s

t

f

RESI STIVE LO AD St orage Time Fall T ime

V

CC

= 250 V I

C

= 200 mA I

B1

= 40 mA I

B2

= -80 mA

t

p

= 20

µs

4.5

0.5

µsµs

∗ Pulsed: Pulse duration = 300µs, duty cycle 1.5 %

Safe Operating Area Derating Curves

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DC Current Gain

Collector Emitter Saturation Voltage

Reverse Biased SOA

DC Current Gain

Base Emitter Saturation Voltage

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DIM. mm inch

MIN. TYP. MAX. MIN. TYP. MAX.

A 7.4 7.8 0.291 0.307

B 10.5 10.8 0.413 0.445

b 0.7 0.9 0.028 0.035

b1 0.49 0.75 0.019 0.030

C 2.4 2.7 0.040 0.106

c1 1.0 1.3 0.039 0.050

D 15.4 16.0 0.606 0.629

e 2.2 0.087

e3 4.15 4.65 0.163 0.183

F 3.8 0.150

G 3 3.2 0.118 0.126

H 2.54 0.100

H2 2.15 0.084

H2

SOT-32 (TO-126) MECHANICAL DATA

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