SC701

polyfet rf devices
SC701
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.
SILICON GATE ENHANCEMENT MODE
RF POWER VDMOS TRANSISTOR
20.0 Watts Single Ended
Package Style AC
"Polyfet"TM process
HIGH EFFICIENCY, LINEAR
HIGH GAIN, LOW NOISE
ROHS COMPLIANT
features
low feedback and output capacitances,
resulting in high Ft transistors with high
input impedance and high efficiency.
o
ABSOLUTE MAXIMUM RATINGS ( T = 25 C )
Total
Device
Dissipation
60 Watts
Junction to
Case Thermal
Resistance
Maximum
Junction
Temperature
o
2.80 C/W
o
200 C
DC Drain
Current
Storage
Temperature
o
o
-65 C to 150 C
RF CHARACTERISTICS (
SYMBOL PARAMETER
MIN
Gps
Common Source Power Gain
η
Drain Efficiency
VSWR
TYP
3.5 A
Drain to
Source
Voltage
Gate to
Source
Voltage
70 V
70 V
20 V
20.0 WATTS OUTPUT )
MAX
10
55
Load Mismatch Tolerance
Drain to
Gate
Voltage
20:1
UNITS TEST CONDITIONS
dB
Idq = 0.20 A, Vds =
28.0 V, F = 500 MHz
%
Idq = 0.20 A, Vds =
28.0 V, F = 500 MHz
Relative
Idq = 0.20 A, Vds = 28.0 V, F =
500 MHz
ELECTRICAL CHARACTERISTICS ( EACH SIDE )
SYMBOL PARAMETER
MIN
TYP
MAX
UNITS TEST CONDITIONS
V
Bvdss
Drain Breakdown Voltage
Idss
Zero Bias Drain Current
1.0
mA
Vds = 28.0 V, Vgs = 0V
Igss
Gate Leakage Current
1
uA
Vds = 0V Vgs = 30V
Vgs
Gate Bias for Drain Current
5
V
gM
Forward Transconductance
65
2
Ids = 20.00 mA, Vgs = 0V
Ids = 0.10 A, Vgs = Vds
1.2
Mho
Vds = 10V, Vgs = 5V
Rdson
Saturation Resistance
0.85
Ohm
Vgs = 20V, Ids = 2.50 A
Idsat
Saturation Current
7.00
Amp
Vgs = 20V, Vds = 10V
Ciss
Common Source Input Capacitance
50.0
pF
Vds = 28.0 Vgs = 0V, F = 1 MHz
Crss
Common Source Feedback Capacitance
3.0
pF
Vds = 28.0 Vgs = 0V, F = 1 MHz
Coss
Common Source Output Capacitance
32.0
pF
Vds = 28.0 Vgs = 0V, F = 1 MHz
POLYFET RF DEVICES
REVISION 10/01/2007
1110 Avenida Acaso, Camarillo, Ca 93012 Tel:(805) 484-4210 FAX: (805) 484-3393 EMAIL:[email protected] URL:www.polyfet.com
SC701
POUT VS PIN GRAPH
CAPACITANCE VS VOLTAGE
S C 7 0 1 P in vs Pout F re q= 5 0 0 M H z , V D S = 2 8 V ,
I dq= .2 A
S1A 1 DIE CAPACITANCE
30
12.5
25
12
CAPACITANCE IN PFS
1000
Coss
100
P out
20
11.5
15
11
10
10.5
Gain
E ffic ienc y @ 20W = 55%
5
Ciss
10
10
Crss
0
9.5
0
0.5
1
1.5
P in in W a tts
2
2.5
1
3
0
4
8
12
16
20
24
28
VDS IN VOLTS
IV CURVE
ID & GM VS VGS
S1A 1 DIE IV
S1A 1 DIE ID & GM Vs VG
10.00
Id in amps; Gm in mhos
8
7
ID IN AMPS
6
5
4
3
2
Id
1.00
gM
1
0.10
0
0
2
vg=2v
4
6
Vg=4v
8
10
12
14
VDS
IN VOLTS vg=8v
Vg=6v
16
0
18
20
0
2
vg=12v
Zin Zout
4
6
8
10
Vgs in Volts
12
14
16
18
PACKAGE DIMENSIONS IN INCHES
Tolerance .XX +/-0.01
POLYFET RF DEVICES
.XXX +/-.005 inches
REVISION 10/01/2007
1110 Avenida Acaso, Camarillo, Ca 93012 Tel:(805) 484-4210 FAX: (805) 484-3393 EMAIL:[email protected] URL:www.polyfet.com