BCR400 Infineon Technologies Corporation, BCR400 Datasheet - Page 2
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BCR400
Manufacturer Part Number
BCR400
Description
Application Considerations For The Integrated Bias Control Circuits
Manufacturer
Infineon Technologies Corporation
Datasheet
1.BCR400.pdf
(3 pages)
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Stability
BCR400 stabilizes bias current of transistors in an active control loop. In order to avoid
loop oscillation (hunting), time constants must be chosen adequately, i.e.
It is strongly recommended that the entire DC circuit is analyzed and optimized for
stability with one of the commercially available SPICE simulators.
Thermal considerations
The collector or drain current of a stabilized RF transistor does not directly affect
BCR400, as it must only provide the base current (or gate bias current). Even as a stand-
alone current source it is not possible to exceed
ratings of
Preliminary SPICE Parameters
*****************************************************************
.MODEL DI400 D(
+
+
+
+
* one internal Diode of BCR400
*****************************************************************
.MODEL TR400 PNP(
+
+
+
+
+
+
+
+
+
+
*****************************************************************
* internal parallel resistance Rint= 6.5 kOhm
* Rb= 75 kOhm
*****************************************************************
Application Note
XCJC= 1.00E+00
BF= 3.00E+02
CJE= 1.56E-11
IKF= 1.00E-02
ISC= 2.00E-14
MJC= 3.49E-01
VJC= 3.00E-01
IS= 6.00E-15
IBV= 1.00E-04
M= 1.00E-01
TT= 8.66E-09
NE= 1.83E+00
RB= 1.00E+02
TF= 6.05E-10
V
s
and
I
contr
are adhered to (see data sheet).
BV= 7.50E+01
CJO= 6.87E-13
VJ= 2.00E+00
BR= 3.38E+00
CJS= 0.00E+00
IKR= 0.40E-02
ISE= 0.50E-13
MJE= 4.18E-01
RBM= 1.00E+01
VJE= 8.00E-01
XTB= 0.00E+00
NF= 1.00E+00
TR= 0.00E+00
N= 1.20E+00
Bias Control Circuits BCR400R and BCR400W
Application Considerations for the Integrated
2
EG= 1.11E+00
XTI= 5.00E+00)
CJC= 2.00E-12
IRB= 0.30E-06
ITF= 0.50E-01
MJS= 3.30E-01
VAF= 5.90E+01
VJS= 7.50E-01
XTF= 5.81E+00
RS= 5.0E+01
EG= 1.11E+00
NR= 1.00E+00
RC= 5.00E+00
P
tot
(up to
T
s
= 115°C), if the maximum
PTF= 0.00E+00
VAR= 1.74E+01
VTF= 4.39E+00
XTI= 1.50E+00)
FC= 8.28E-01
IS= 0.30E-14
NC= 1.19E+00
RE= 2.00E-01
C
1
>= 10 x
2000-07-27
C
2
.