BC488B datasheet(3/6 Pages) ONSEMI

3 / 6 page

BC488B

http://onsemi.com

Figure 2. Current−Gain − Bandwidth Product

IC, COLLECTOR CURRENT (mA)

−200

−70

−50

−30

−20

−10

−7.0

−5.0

−3.0

−2.0

200

100

VCE = −2.0 V

TJ = 25°C

Figure 3. Capacitance

VR, REVERSE VOLTAGE (VOLTS)

−100

−50

−20

−10

−5.0

−2.0

−1.0

−0.5

−0.2

−0.1

100

5.0

TJ = 25°C

Cobo

Cibo

Figure 4. Switching Time

IC, COLLECTOR CURRENT (mA)

−500

−50

−30

−20

−10

−7.0

−5.0

1.0 k

VCC = −40 V

IC/IB = 10

IB1 = IB2

TJ = 25°C

700

500

300

200

100

td @ VBE(off) = −0.5 V

−100

7.0

−200

−100

−70

−300

Figure 5. Thermal Response

t, TIME (ms)

1.0

0.01

0.02

0.03

0.05

0.07

0.1

0.2

0.3

0.5

0.7

1.0

2.0

5.0

100

200

500

1.0k

2.0k

5.0k

10k

20k

50k

100

D = 0.5

0.2

0.1

0.02

0.01

SINGLE PULSE

DUTY CYCLE, D = t1/t2

D CURVES APPLY FOR POWER

PULSE TRAIN SHOWN

READ TIME AT t1 (SEE AN−469)

TJ(pk) − TC = P(pk) ZqJC(t)

TJ(pk) − TA = P(pk) ZqJA(t)

P(pk)

ZqJC(t) = r(t) • RqJC

ZqJA(t) = r(t) • RqJA

SINGLE PULSE

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