TIP42C データシートの表示（PDF） - Motorola => Freescale
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TIP42C Datasheet PDF : 6 Pages
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1.0
0.7 D = 0.5
0.5
0.3
0.2
0.2
0.1
0.1
0.07 0.05
0.05
0.02
0.03
0.02 0.01
SINGLE PULSE
0.01
0.01 0.02
0.05 1.0 0.2
TIP41A TIP41B TIP41C TIP42A TIP42B TIP42C
ZθJC(t) = r(t) RθJC
RθJC = 1.92°C/W MAX
D CURVES APPLY FOR POWER
PULSE TRAIN SHOWN
READ TIME AT t1
TJ(pk) – TC = P(pk) ZθJC(t)
P(pk)
t1
t2
DUTY CYCLE, D = t1/t2
0.5 1.0 2.0
5.0 10 20
t, TIME (ms)
50 100 200
500 1.0 k
Figure 4. Thermal Response
10
0.5 ms
5.0
3.0
TJ = 150°C
2.0
1.0 ms
SECONDARY BREAKDOWN LTD
5.0 ms
1.0
BONDING WIRE LTD
THERMAL LIMITATION @ TC = 25°C
0.5
(SINGLE PULSE)
0.3 CURVES APPLY BELOW RATED VCEO
0.2
TIP41A, TIP42A
TIP41B, TIP42B
TIP41C, TIP42C
0.1
5.0
10
20
40
60
VCE, COLLECTOR–EMITTER VOLTAGE (VOLTS)
80 100
Figure 5. Active–Region Safe Operating Area
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 5 is based on TJ(pk) = 150_C; TC is
variable depending on conditions. Second breakdown pulse
vlimits are valid for duty cycles to 10% provided TJ(pk)
150 _C. TJ(pk) may be calculated from the data in
Figure 4. At high case temperatures, thermal limitations will
reduce the power that can be handled to values less than the
limitations imposed by second breakdown.
5.0
3.0
2.0
1.0
0.7
0.5
0.3
0.2
0.1
0.07
0.05
0.06 0.1
TJ = 25°C
VCC = 30 V
ts
IC/IB = 10
IB1 = IB2
tf
0.2
0.4 0.6 1.0
2.0
IC, COLLECTOR CURRENT (AMP)
Figure 6. Turn–Off Time
4.0 6.0
300
TJ = 25°C
200
Cib
100
70
Cob
50
30
0.5
1.0
2.0 3.0 5.0
10
20 30 50
VR, REVERSE VOLTAGE (VOLTS)
Figure 7. Capacitance
Motorola Bipolar Power Transistor Device Data
3
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