
Item
Drain Current
Transconductance
Pinch-Off Voltage
Gate-Source Breakdown Voltage
Output Power at 1 dB G.C.P.
Power Gain at 1 dB G.C.P.
Power-Added Efficiency
Output Power at 1 dB G.C.P.
Thermal Resistance
Symbol
I
DSS
V
GSO
-
6000
-
-
12
16
-1.0
-2.0
-3.5
-5
-
-
44.5
45.5
-
9.0
10.0
-
-
44
-
-
-
1.0
1.4
V
DS
= 5V, V
GS
=0V
V
DS
= 5V, I
DS
=7.2A
V
DS
= 5V, I
DS
=720mA
I
GS
= -720
μ
A
Channel to Case
V
DS
= 12V
f=1.96GHz
I
DS
= 2A
V
DS
= 10V
f=1.96GHz
I
DS
= 2A
A
mS
V
dB
dBm
V
°
C/W
%
gm
V
p
P
1dB
G
1dB
Power Gain at 1 dB G.C.P.
-
44.5
-
10.0
-
dB
dBm
P
1dB
G
1dB
η
add
Drain Current
-
6.0
8.0
A
I
DSR
R
th
Conditions
Unit
Limits
Typ.
Max.
Min.
ELECTRICAL CHARACTERISTICS (Ambient Temperature Ta=25
°
C)
G.C.P.: Gain Compression Point
CASE STYLE: IP
Parameter
Drain-Source Voltage
Gate-Source Voltage
Total Power Dissipation
Storage Temperature
Channel Temperature
Symbol
V
DS
V
GS
P
T
T
stg
Tc = 25
°
C
V
V
W
°
C
°
C
T
ch
Condition
107
-65 to +175
+175
-5
15
Rating
Unit
ABSOLUTE MAXIMUM RATINGS (Ambient Temperature Ta=25
°
C)
Fujitsu recommends the following conditions for the reliable operation of GaAs FETs:
1. The drain-source operating voltage (VDS) should not exceed 12 volts.
2. The forward and reverse gate currents should not exceed 54.4 and -17.4 mA respectively with
gate resistance of 25
.
3. The operating channel temperature (Tch) should not exceed 145
°
C.
1
APPLICATIONS
Solid State Base-Station Power Amplifier.
PCS/PCN Communication Systems.
Edition 1.6
December 1999
FLL400IP-2
L-Band Medium & High Power GaAs FET
DESCRIPTION
The FLL400IP-2 is a 35 Watt GaAs FET that employs a push-pull design which
offers ease of matching, greater consistency and a broader bandwidth for high
power L-band amplifiers. This product is targeted to reduce the size and complexity
of highly linear, high power base station transmitting amplifiers. This new product is
uniquely suited for use in PCS/PCN base station amplifiers as it offers high gain,
long term reliability and ease of use.
FEATURES
Push-Pull Configuration
High Power Output: 35W (Typ.)
High PAE: 44% (Typ.)
Broad Frequency Range: 800 to 2000 MHz.
Suitable for class A operation at 10V
and class AB operation at 12V