BCR400W Datasheet, PDF (4/7 Pages) Siemens Semiconductor Group – Active Bias Controller (Supplies stable bias current even at low battery voltage and extreme ambient temperature variation)

BCR400W
Collector current T_A = f (I_C)
of stabilized NPN Transistor

Parameter: R_ext.( )
10 ³
mA
2.2
10 ²
6
26
10 ¹
65
290
10 ⁰
760
4.3k
10 ^-1
-40 -20 0 20 40 60 80 100 120 ^°C 160
T_A
Control current I = f (T_A)
in current source application
Control current I = f (R_ext.)
in current source application
10 ¹
mA
10 ⁰
10
-1
10
-1
10 ⁰
10 ¹
Control current I = f (V_S)
in current source application
10 ^{2 KOhm}10 ³
R_ext.
1.5
mA
2.2
mA
1.2
1.1
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0-20
0
20 40 60 80 ^°C 110
T_A
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
00
2
4
6
8^V
11
V_S
4
Aug-07-2001