MJD243

2

Motorola Bipolar Power Transistor Device Data

Characteristic

Symbol

Min

Max

Unit

OFF CHARACTERISTICS

Collector–Emitter Sustaining Voltage (1) (IC = 10 mAdc, IB = 0)

VCEO(sus)

100

—

Vdc

Collector Cutoff Current (VCB = 100 Vdc, IE = 0)

ICBO

—

—

100

100

nAdc

µAdc

Emitter Cutoff Current (VBE = 7 Vdc, IC = 0)

IEBO

—

100

nAdc

DC Current Gain (1) (IC = 200 mAdc, VCE = 1 Vdc)

hFE

40

15

180

—

—

Collector–Emitter Saturation Voltage (1)

(IC = 500 mAdc, IB = 50 mAdc)

(IC = 1 Adc, IB = 100 mAdc)

VCE(sat)

—

—

0.3

0.6

Vdc

Base–Emitter Saturation Voltage (1) (IC = 2 Adc, IB = 200 mAdc)

VBE(sat)

—

1.8

Vdc

Base–Emitter On Voltage (1) (IC = 500 mAdc, VCE = 1 Vdc)

VBE(on)

—

1.5

Vdc

DYNAMIC CHARACTERISTICS

Current–Gain — Bandwidth Product (2) (IC = 100 mAdc, VCE = 10 Vdc, ftest = 10 MHz)

fT

40

—

MHz

Output Capacitance (VCB = 10 Vdc, IE = 0, f = 0.1 MHz)

Cob

—

50

pF

(1) Pulse Test: Pulse Width = 300

µs, Duty Cycle [ 2%.

(2) fT = hFE• ftest.

Figure 2. Active Region Maximum Safe

Operating Area

10

VCE, COLLECTOR–EMITTER VOLTAGE (VOLTS)

0.01

100

2

5

0.1

BONDING WIRE LIMITED

THERMALLY LIMITED @ TC = 25°C

(SINGLE PULSE)

SECOND BREAKDOWN LIMITED

CURVES APPLY BELOW

RATED VCEO

500

µs

dc

1

1 ms

50

20

10

5

2

1

100

µs

0.02

0.05

0.2

0.5

5 ms

There are two limitations on the power handling ability of a

transistor: average junction temperature and second break-

down. Safe operating area curves indicate IC – VCE limits of

the transistor that must be observed for reliable operation;

i.e., the transistor must not be subjected to greater dissipa-

tion than the curves indicate.

The data of Figure 2 is based on TJ(pk) = 150_C; TC is

variable depending on conditions. Second breakdown pulse

limits are valid for duty cycles to 10% provided TJ(pk)

v 150_C. TJ(pk) may be calculated from the data in Fig-

ure 3. At high case temperatures, thermal limitations will re-

duce the power that can be handled to values less than the

limitations imposed by second breakdown.

t, TIME (ms)

0.01

0.02

0.05

1

2

5

10

20

50

100

200

0.1

0.5

0.2

1

0.2

0.1

0.05

R

θJC(t) = r(t) θJC

R

θJC = 10°C/W MAX

D CURVES APPLY FOR POWER

PULSE TRAIN SHOWN

READ TIME AT t1

TJ(pk) – TC = P(pk) θJC(t)

P(pk)

t1

t2

DUTY CYCLE, D = t1/t2

0.2

0.5

D = 0.5

0.05

0.3

0.7

0.07

0.03

0.02

0 (SINGLE PULSE)

Figure 3. Thermal Response

0.1

0.02

0.01