Communication Concepts MPS2222 - Manual (Page 4)

MPS2222, MPS2222A
http://onsemi.com
4
V CE
, COLLECT
OR−EMITTER VOL
TAGE (VOL
TS) 1.0
0.8
0.6
0.4
0.2
0
0.005 0.01 0.02 0.03 0.05 0.1 0.2 0.3 0.5 1.0 2.0 3.0 5.0 10 20 30 50
I
B
, BASE CURRENT (mA)
Figure 4. Collector Saturation Region
T
J
= 25°C
I
C
= 1.0 mA 10 mA 150 mA 500 mA
Figure 5. Turn −On Time
I
C
, COLLECTOR CURRENT (mA)
70
100
200
50
t, TIME
(ns)
10 20 70
5.0
100 5.0 7.0 30 50 200
10
30
7.0
20
I
C
/I
B
= 10
T
J
= 25°C
t
r
@ V
CC
= 30 V
t
d
@ V
EB(off)
= 2.0 V
t
d
@ V
EB(off)
= 0
3.0
2.0
300 500
500
t, TIME
(ns)
5.0
7.0
10
20
30
50
70
100
200
300
Figure 6. Turn −Off Time
I
C
, COLLECTOR CURRENT (mA)
10 20 70 100 5.0 7.0 30 50 200 300 500
V
CC
= 30 V
I
C
/I
B
= 10
I
B1
= I
B2
T
J
= 25°C
t′
s
= t
s
− 1/8 t
f
t
f
Figure 7. Frequency Effects
f, FREQUENCY (kHz)
4.0
6.0
8.0
10
2.0
0.1
Figure 8. Source Resistance Effects
R
S
, SOURCE RESISTANCE (OHMS)
NF
, NOISE FIGURE (dB)
1.0 2.0 5.0 10 20 50 0.2 0.5
0
100
NF
, NOISE FIGURE (dB)
0.01 0.02 0.05
R
S
= OPTIMUM
R
S
= SOURCE
R
S
= RESISTANCE
I
C
= 1.0 mA, R
S
= 150 W
500 mA, R
S
= 200 W
100 mA, R
S
= 2.0 kW
50 mA, R
S
= 4.0 kW
f = 1.0 kHz
I
C
= 50 mA
100 mA
500 mA
1.0 mA
4.0
6.0
8.0
10
2.0
0
50 100 200 500 1.0 k 2.0 k 5.0 k 10 k 20 k 50 k 100 k