BUL44 データシートの表示（PDF） - Motorola => Freescale
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BUL44 Datasheet PDF : 10 Pages
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TYPICAL THERMAL RESPONSE
BUL44 BUL44F
1.0
0.5
0.2
0.01
0.1
0.05
0.01
0.02
SINGLE PULSE
0.01
0.01
P(pk)
t1
t2
DUTY CYCLE, D = t1/t2
RθJC(t) = r(t) RθJC
D CURVES APPLY FOR
POWER PULSE TRAIN
SHOWN READ TIME AT t1
TJ(pk) – TC = P(pk) RθJC1(t)
0.1
1.0
10
t, TIME (ms)
100
1000
Figure 20. Typical Thermal Response (ZθJC(t)) for BUL44
1.0
0.5
0.2
0.1
0.1 0.05
SINGLE PULSE
0.01
0.01
0.1
P(pk)
t1
t2
DUTY CYCLE, D = t1/t2
RθJC(t) = r(t) RθJC
D CURVES APPLY FOR
POWER PULSE TRAIN
SHOWN READ TIME AT t1
TJ(pk) – TC = P(pk) RθJC1(t)
1.0
10
t, TIME (ms)
100
1000
Figure 21. Typical Thermal Response (ZθJC(t)) for BUL44F
Motorola Bipolar Power Transistor Device Data
7
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