BCR400W Datasheet, PDF (5/7 Pages) Siemens Semiconductor Group – Active Bias Controller (Supplies stable bias current even at low battery voltage and extreme ambient temperature variation)

BCR 400W
Total power dissipation P_tot = f (T_A*;T_S)
* Package mounted on epoxy
400
mW
P_tot
300
250
T_S
T_A
200
150
100
50
0
0 20 40 60 80 100 120 °C 150
T_A,T_S
Note that up to T_S = 130°C
it is not possible to exceed P_tot
respecting the maximum
ratings of V_S and I_Contr.
The collector or drain
current (respectively) of
the stabilized RF transistor
does not affect BCR 400
directly, as it provides just the
base current.
Typical application for GaAs FET
with active bias controller
Semiconductor Group
5
Nov-27-1996