BCR400W Datasheet, PDF (1/7 Pages) Siemens Semiconductor Group – Active Bias Controller (Supplies stable bias current even at low battery voltage and extreme ambient temperature variation)

BCR400W
Active Bias Controller
Characteristics

Supplies stable bias current even at low battery
voltage and extreme ambient temperature variation

Low voltage drop of 0.7V
Application notes

Stabilizing bias current of NPN transistors
and FET's from less than 0.2mA up to
more than 200mA

Ideal supplement for Sieget and other transistors

also usable as current source up to 5mA
3
4
2
1
VPS05605
4
3
1
2
EHA07188
Type
Marking
Pin Configuration
Package
BCR400W W4s
1=GND/E_NPN 2=Contr/B_NPN 3V_S 4=Rext/C_NPN SOT343
(E_NPN, B_NPN, C_NPN are electrodes of a stabilized NPN transistor)
Maximum Ratings
Parameter
Source voltage
Control current
Control voltage
Reverse voltage between all terminals
Total power dissipation, T_S = 117 °C
Junction temperature
Storage temperature
Thermal Resistance
Junction - soldering point¹⁾
Symbol
V_S
I_Contr.
V_Contr.
V_R
P_tot
T_j
T_stg
R_thJS
Value
18
10
16
0.5
330
150
-65 ... 150

100
Unit
V
mA
V
mW
°C
K/W
1For _{calculation of RthJA please refer to Application Note Thermal Resistance}
1
Aug-07-2001