F1280 Datasheet, PDF (1/2 Pages) Polyfet RF Devices – PATENTED GOLD METALIZED SILICON GATE ENHANCEMENT MODE RF POWER VDMOS TRANSISTOR

polyfet rf devices
F1280
General Description
Silicon VDMOS and LDMOS
transistors designed specifically
for broadband RF applications.
Suitable for Military Radios,
Cellular and Paging Amplifier Base
Stations, Broadcast FM/AM, MRI,
Laser Driver and others.
"Polyfet" ^TMprocess features
gold metal for greatly extended
lifetime. Low output capacitance
and high F_t enhance broadband
performance
PATENTED GOLD METALIZED
SILICON GATE ENHANCEMENT MODE
RF POWER VDMOS TRANSISTOR
80 Watts Single Ended
Package Style AT
HIGH EFFICIENCY, LINEAR,
HIGH GAIN, LOW NOISE
ABSOLUTE MAXIMUM RATINGS (TC = 25 C^o )
Total
Device
Dissipation
Junction to
Case Thermal
Resistance
Maximum
Junction
Temperature
Storage
Temperature
DC Drain
Current
Drain to
Gate
Voltage
Drain to
Source
Voltage
Gate to
Source
Voltage
190 Watts
0.9 ^oC/W
200 ^oC
-65 ^oC to 150^oC
12 A
50 V
50 V
30V
RF CHARACTERISTICS ( 80WATTS OUTPUT )
SYMBOL PARAMETER
MIN
TYP MAX UNITS TEST CONDITIONS
Gps
Common Source Power Gai
10
dB Idq = 2.4 A, Vds = 12.5 V, F = 175 MHz
η
Drain Efficiency
60
% Idq = 2.4 A, Vds = 12.5 V, F = 175 MHz
VSWR Load Mismatch Toleranc
20:1 Relative Idq = 2.4 A, Vds = 12.5 V, F = 175 MHz
ELECTRICAL CHARACTERISTICS (EACH SIDE)
SYMBOL PARAMETER
MIN
TYP MAX UNITS TEST CONDITIONS
Bvdss Drain Breakdown Voltag
40
V
Ids = 0.3 A, Vgs = 0V
Idss
Zero Bias Drain Curren
6
mA
Vds = 12.5 V, Vgs = 0V
Igss
Gate Leakage Curren
1
uA
Vds = 0 V, Vgs = 30V
Vgs
Gate Bias for Drain Curren
1
7
V
Ids = 0.6 A, Vgs = Vds
gM
Forward Transconductanc
4.8
Mho
Vds = 10V, Vgs = 5V
Rdson Saturation Resistanc
0.15
Ohm
Vgs = 20V, Ids = 48 A
Idsat
Saturation Curren
45
Amp
Vgs = 20V, Vds = 10V
Ciss
Common Source Input Capacitanc
240
pF
Vds = 12.5 V, Vgs = 0V, F = 1 MHz
Crss
Common Source Feedback Capacitanc
36
pF
Vds = 12.5 V, Vgs = 0V, F = 1 MHz
Coss
Common Source Output Capacitanc
180
pF
Vds = 12.5 V, Vgs = 0V, F = 1 MHz
POLYFET RF DEVICES
REVISION 8/1/97
1110 Avenida Acaso, Camarillo, CA 93012 TEL:[phone] FAX:[phone] EMAIL:[e-mail] URL:www.polyfet.com