BCR400R 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)

BCR 400R
Collector current T_A = f(I_C)
of stabilized NPN Transistor
Parameter: R_ext.(Ω)
10 ³
mA
I_C
10 ²
Control current I = f(R_ext.)
in current source application
10 ¹
2.2
I_{Contr. mA}
6
26
10 ¹
10 ⁰
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
10 ^-1
10 ^-1
10 ⁰
10 ¹
Control current I = f(V_S)
in current source application
10 ² KOhm
R_ext.
1.5
mA
1.3
I_Contr. 1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
-20
0
20
40
60
°C 100
T_A
2.0
mA
I_Contr. ^1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
0 1 2 3 4 5 6 7 8 V 10
V_S
Semiconductor Group
4
Nov-27-1996