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參數(shù)資料
| 型號： | 2N6497BUBU |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 功率晶體管 |
| 英文描述： | 5 A, 250 V, NPN, Si, POWER TRANSISTOR |
| 封裝： | TO-220AB, 3 PIN |
| 文件頁數(shù)： | 23/61頁 |
| 文件大?。?/td> | 366K |
| 代理商： | 2N6497BUBU |
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2N6497 2N6498
3–138
Motorola Bipolar Power Transistor Device Data
Figure 3. Thermal Response
t, TIME OR PULSE WIDTH (ms)
1.0
0.01
0.7
0.5
0.3
0.2
0.1
0.07
0.05
0.03
0.02
r(t)
EFFECTIVE
TRANSIENT
THERMAL
RESIST
ANCE
(NORMALIZED)
0.05
0.1
0.2
0.5
1.0
2.0
5.0
10
20
50
100
200
1000
500
R
θJC(max) = 1.56°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
THERMAL LIMIT (SINGLE PULSE)
SECOND BREAKDOWN LIMIT
20
Figure 4. Active–Region Safe Operating Area
2.0
10
20
500
TC = 25°C
0.2
5.0
0.5
VCE, COLLECTOR–EMITTER VOLTAGE (VOLTS)
10
70
1.0
0.02
dc
5.0
100
7.0
2N6497
2N6498
CURVES APPLY BELOW RATED VCEO
5.0 ms
1.0 ms
100
s
I C
,COLLECT
OR
CURRENT
(AMP)
0.1
0.05
30
50
300
200
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 4 is based on TC = 25_C; TJ(pk) is
variable depending on power level. 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 Figure 3.
At high case temperatures, thermal limitations will reduce the
power that can be handled to values less than the limitations
imposed by second breakdown. Second breakdown limita-
tions do not derate the same as thermal limitations. Allow-
able current at the voltage shown on Figure 4 may be found
at any case temperature by using the appropriate curve on
Figure 6.
Figure 5. Turn–Off Time
IC, COLLECTOR CURRENT (AMP)
VCC = 125 V
IC/IB = 5.0
TJ = 25°C
ts
tf
t,TIME
(
s)
10
7.0
5.0
3.0
2.0
1.0
0.7
0.5
0.1
0.3
0.2
0.05
5.0
1.0
0.1
2.0
0.07
3.0
0.3
0.2
0.5 0.7
100
80
60
20
0
20
40
60
80
100
120
140
160
Figure 6. Power Derating
TC, CASE TEMPERATURE (°C)
POWER
DERA
TING
FACT
OR
(%)
THERMAL DERATING
SECOND BREAKDOWN DERATING
40
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