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BDX53B Datasheet(PDF) 3 Page - ON Semiconductor

Part No. BDX53B
Description  DARLINGTON 8 AMPERE COMPLEMENTARY SILICON POWER TRANSISTORS 80-100 VOLTS 65 WATTS
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Maker  ONSEMI [ON Semiconductor]
Homepage  http://www.onsemi.com
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BDX53B Datasheet(HTML) 3 Page - ON Semiconductor

   
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BDX53B BDX53C BDX54B BDX54C
3
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
SINGLE
PULSE
0.03
0.3
3.0
30
300
BONDING WIRE LIMITED
THERMALLY LIMITED @ TC = 25°C
(SINGLE PULSE)
SECOND BREAKDOWN LIMITED
1.0
Figure 5. Active–Region Safe Operating Area
20
2.0
0.05
10
20
100
TJ = 150°C
0.2
5.0
0.5
VCE, COLLECTOR–EMITTER VOLTAGE (VOLTS)
10
30
70
1.0
0.1
dc
2.0
50
3.0
5.0 7.0
5.0 ms
1.0 ms
100
µs
BDX53B, BDX54B
BDX53C, BDX54C
CURVES APPLY BELOW RATED VCEO
0.02
500
µs
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
limits are valid for duty cycles to 10% provided TJ(pk)
t 150_C. TJ(pk) may be calculated from the data in Fig-
ure 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.
10,000
1.0
Figure 6. 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
TJ = 25°C
VCE = 3.0 V
IC = 3.0 A
300
0.1
Figure 7. 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
PNP
NPN
PNP
NPN


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