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BDW42 Arkusz danych(PDF) 3 Page - Motorola, Inc

Numer części BDW42
Szczegółowy opis  Darlington Complementary Silicon Power Transistors
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Producent  MOTOROLA [Motorola, Inc]
Strona internetowa  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

BDW42 Arkusz danych(HTML) 3 Page - Motorola, Inc

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BDW42 BDW46 BDW47
3–214
Motorola Bipolar Power Transistor Device Data
Figure 4. Thermal Response
t, TIME OR PULSE WIDTH (ms)
1.0
0.01
0.01
0.7
0.5
0.3
0.2
0.1
0.07
0.05
0.03
0.02
0.02
0.05
0.1
0.2
0.5
1.0
2.0
5.0
10
20
50
100
200
1000
500
R
θJC(t) = r(t) RθJC
R
θJC = 1.92°C/W
D CURVES APPLY FOR POWER
PULSE TRAIN SHOWN
READ TIME AT t1
TJ(pk) – TC = P(pk) R
θJC(t)
P(pk)
t1
t2
DUTY CYCLE, D = t1/t2
D = 0.5
SINGLE PULSE
0.2
0.05
0.1
0.02
0.01
0.03
0.3
3.0
30
300
ACTIVE–REGION SAFE OPERATING AREA
SECOND BREAKDOWN LIMIT
BONDING WIRE LIMIT
THERMAL LIMITED
@ TC = 25°C (SINGLE PULSE)
50
1.0
Figure 5. BDW42
20
2.0
0.05
10
20
100
TJ = 25°C
BDW42
1.0 ms
0.1 ms
0.2
5.0
0.5
VCE, COLLECTOR–EMITTER VOLTAGE (VOLTS)
10
30
70
1.0
0.1
0.5 ms
dc
2.0
50
3.0
5.0
7.0
Figure 6. BDW46 and BDW47
SECOND BREAKDOWN LIMIT
BONDING WIRE LIMIT
THERMAL LIMITED
@ TC = 25°C (SINGLE PULSE)
50
1.0
20
2.0
0.05
10
20
100
TJ = 25°C
BDW46
BDW47
1.0 ms
0.1 ms
0.2
5.0
0.5
VCE, COLLECTOR–EMITTER VOLTAGE (VOLTS)
10
30
70
1.0
0.1
0.5 ms
dc
2.0
50
3.0
5.0
7.0
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 dissipation than the
curves indicate. The data of Fig. 5 and 6 is based on TJ(pk) =
200
_C; TC is variable depending on conditions. Second break-
down pulse limits are valid for duty cycles to 10% provided
TJ(pk) v 200_C. TJ(pk) may be calculated from the data in
Fig. 4. At high case temperatures, thermal limitations will re-
duce the power that can be handled to values less than the li-
mitations imposed by second breakdown.
* Linear extrapolation
10,000
1.0
Figure 7. Small–Signal Current Gain
f, FREQUENCY (kHz)
10
2.0
5.0
10
20
50
100
200
1000
500
300
100
5000
20
3000
200
500
2000
1000
30
50
BDW46, 47 (PNP)
BDW42 (NPN)
TJ = 25°C
VCE = 3.0 V
IC = 3.0 A
300
0.1
Figure 8. Capacitance
VR, REVERSE VOLTAGE (VOLTS)
30
1.0
2.0
5.0
20
100
10
200
100
70
50
TJ = + 25°C
Cib
Cob
50
0.2
0.5
BDW46, 47 (PNP)
BDW42 (NPN)


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