LMBT3904TT1 Datasheet, PDF (4/7 Pages) Leshan Radio Company – General Purpose Transistors

LESHAN RADIO COMPANY, LTD.
500
300
I C /I B = 10
200
100
70
50
30
20
10
7
5
1.0
t r @ V CC = 3.0 V
40 V
15 V
t d @ V OB = 0 V
2.0 V
2.0 3.0 5.0 7.0 10
20 30 50 70 100 200
I C , COLLECTOR CURRENT (mA)
Figure 5. Turn–On Time
500
300
200 ^{I C /I B =20}
I C /I B =10
t ’s = t s –1 /8 tf
I B1 = I B2
100
70
50
I C /I B =20
30
I C /I B =10
20
10
7
5
1.0
2.0 3.0 5.0 7.0 10
20 30 50 70 100 200
I C , COLLECTOR CURRENT (mA)
Figure 7. Storage Time
LMBT3904TT1
500
300
200
100
70
50
30
20
10
7
5
1.0
500
300
200
100
70
50
30
20
10
7
5
1.0
V CC = 40 V
I C /I B = 10
2.0 3.0 5.0 7.0 10
20 30 50 70 100 200
I C , COLLECTOR CURRENT (mA)
Figure 6. Rise Time
I C /I B = 20
V CC = 40 V
I B1 = I B2
I C /I B = 10
2.0 3.0 5.0 7.0 10
20 30 50 70 100 200
I C , COLLECTOR CURRENT (mA)
Figure 8. Fall Time
TYPICAL AUDIO SMALL–SIGNAL CHARACTERISTICS
NOISE FIGURE VARIATIONS
(V CE = 5.0 Vdc, T A = 25°C, Bandwidth = 1.0 Hz)
12
SOURCE RESISTANCE=200Ω
10
I C = 1.0 mA
8
SOURCE RESISTANCE =200Ω
I C = 0.5 mA
6
SOURCE RESISTANCE =1.0k
I C = 50µA
4
2 _{SOURCE RESISTANCE=500Ω}
I C = 100 µA
0
0.1 0.2 0.4
1.0 2.0 4.0
10 20 40
100
f, FREQUENCY (kHz)
Figure 9.
14
12 ^{f = 1.0 kHz I C = 1.0 mA}
10
I C = 0.5 mA
8
6
I C = 50 µA
I C = 100 µA
4
2
0
0.1 0.2 0.4
1.0 2.0 4.0
10 20 40
100
R S , SOURCE RESISTANCE (kΩ)
Figure 10.
LMBT3904TT1-4/7