Seme LAB DMD1028 Rohs compliant metal gate rf silicon fet Datasheet

TetraFET
DMD1028
DMD1028-A
ROHS COMPLIANT METAL GATE RF SILICON FET
MECHANICAL DATA
B
C
(2 pls)
2
G
(typ)
3
1
H
P
(2 pls) A
D
5
4
E
(4 pls)
GOLD METALLISED
MULTI-PURPOSE SILICON
DMOS RF FET
300W – 28V – 175MHz
PUSH–PULL
F
I
FEATURES
• SUITABLE FOR BROAD BAND APPLICATIONS
N
PIN 1
PIN 3
PIN 5
M
O
SOURCE (COMMON)
DRAIN 2
GATE 1
DIM
A
B
C
D
E
F
G
H
I
J
K
M
N
O
P
J
D1
Millimetres
15.24
10.80
45°
9.78
8.38
27.94
1.52R
10.16
21.84
0.10
1.96
1.02
4.45
34.04
1.63R
PD
BVDSS
BVGSS
ID(sat)
Tstg
Tj
PIN 2
PIN 4
K
DRAIN 1
GATE 2
• SIMPLE BIAS CIRCUITS
• ULTRA-LOW THERMAL RESISTANCE
• BeO FREE
Tol.
0.50
0.13
5°
0.13
0.13
0.13
0.13
0.15
0.23
0.02
0.13
0.13
0.38
0.13
0.13
Inches
0.600
0.425
45°
0.385
0.330
1.100
0.060R
0.400
0.860
0.004
0.077
0.040
0.175
1.340
0.064R
Tol.
0.020
0.005
5°
0.005
0.005
0.005
0.005
0.006
0.009
0.001
0.005
0.005
0.015
0.005
0.005
• LOW Crss
• HIGH GAIN – 16 dB MINIMUM
APPLICATIONS
• VHF/UHF COMMUNICATIONS
from 1 MHz to 400 MHz
Power Dissipation
Drain – Source Breakdown Voltage *
Gate – Source Breakdown Voltage*
Drain Current*
Storage Temperature
Maximum Operating Junction Temperature
875W (438W -A Version)
70V
±20V
30A
–65 to 150°C
200°C
* Per Side
Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed
to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use.
Semelab encourages customers to verify that datasheets are current before placing orders.
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
Website: http://www.semelab.co.uk
E-mail: [email protected]
Document Number 6509
Issue 3
DMD1028
DMD1028-A
ELECTRICAL CHARACTERISTICS (Tcase = 25°C unless otherwise stated)
Parameter
Test Conditions
Min.
Typ.
Max. Unit
PER SIDE
BVDSS
IDSS
Drain–Source Breakdown
Voltage
Zero Gate Voltage
Drain Current
ID = 100mA
VDS = 28V
VGS = 0
6
mA
1
μA
7
V
IGSS
Gate Leakage Current
VGS = 20V
VDS = 0
VGS(th)
Gate Threshold Voltage*
ID = 10mA
VDS = VGS
gfs
Forward Transconductance*
VDS = 10V
ID = 6A
ID = 10mA
VDS = VGS
VGS(th)match
Gate Threshold Voltage
Matching Between Sides
V
VGS = 0
70
1
mhos
4.8
0.1
V
TOTAL DEVICE
GPS
Common Source Power Gain
PO = 300W
η
Drain Efficiency
VDS = 28V
VSWR
Load Mismatch Tolerance
f = 175MHz
Ciss
Input Capacitance
VDS = 28V
VGS = –5V f = 1MHz
360
pF
Coss
Output Capacitance
VDS = 28V
VGS = 0
f = 1MHz
180
pF
Crss
Reverse Transfer Capacitance VDS = 28V
VGS = 0
f = 1MHz
15
pF
IDQ = 2A
16
dB
60
%
20:1
—
PER SIDE
* Pulse Test:
Pulse Duration = 300 μs , Duty Cycle ≤ 2%
THERMAL DATA
RTHj–case
Thermal Resistance Junction – Case
Max. 0.2°C / W
0.4 °C / W -A Version
Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed
to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use.
Semelab encourages customers to verify that datasheets are current before placing orders.
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
Website: http://www.semelab.co.uk
E-mail: [email protected]
Document Number 6509
Issue 3
DMD1028
DMD1028-A
90
25
80
20
%
60
Efficiency
70
50
15
Gain
dB
Vds = 28V
Idq = 2A
f =175MHz
10
5
40
Vds = 28V
Idq = 2A
f =175MHz
30
20
10
0
0
50
100
150
200
Pout W
250
300
350
Gain (dB)
0
0
50
100
150
200
Pout W
Figure 1 – Gain vs. Power Output.
250
300
350
Efficiency (%)
Figure 2 – Efficiency vs. Power Output.
-10
-20
IMD3 -30
dBc
f1 = 175 MHz
f2 = 175.1 MHz
Vds = 28V
Idq = 2A
-40
-50
-60
0
50
100
150
200
Pout W PEP
250
300
350
IMD3 (dBc)
Figure 3 – IMD vs. Power Output
Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed
to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use.
Semelab encourages customers to verify that datasheets are current before placing orders.
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
Website: http://www.semelab.co.uk
E-mail: [email protected]
Document Number 6509
Issue 3
DMD1028
DMD1028-A
40
35
Vg=13 V
Vg=12 V
Vg=11 V
Vg=10 V
Vg=9V
Vg=8 V
Vg=7 V
Vg=6 V
Vg=5 V
30
25
IDS (A)
20
15
10
5
0
0.00
5.00
10.00
15.00
20.00
25.00
30.00
35.00
VDS (V)
Figure 4 – Typical IV Characteristics.
Capacitance pF
1000
100
Output capacitance
Input Capacitance
Reverse transfer capacitance
10
1
0
5
10
15
20
25
30
Vds V
Figure 5 – Typical CV Characteristics.
Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed
to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use.
Semelab encourages customers to verify that datasheets are current before placing orders.
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
Website: http://www.semelab.co.uk
E-mail: [email protected]
Document Number 6509
Issue 3
DMD1028
DMD1028-A
L2
10k
Gate-Bias
100n
1n
1n
100k
L1
T2
28V
100n
12
1n
1000u
T4
DMD1028
680pF
T6
1u
T1
2-18 pF
90pF
47pF
2-18 pF
680pF
1u
T5
T3
DMD1028
DMD1028 175MHz TEST FIXTURE
Substrate 1.6mm PTFE/glass, Er=2.5
All microstrip lines W=4.4mm
T1,2,3
T4,5
T6
L1
L2
7cm Storm Products EXE18 19/30 S1TW coaxial cable on Siemens
B62152A1X1 2-hole core.
14cm Storm Products EXE18 19/30 S1TW coaxial cable.
11cm Storm Products EXE18 19/30 S1TW coaxial cable
6 turns 1.2mm dia wire, 5mm internal diameter
1.5 turns 0.9mm dia wire on Siemens A1 x 1 2 hole core
Semelab Plc reserves the right to change test conditions, parameter limits and package dimensions without notice. Information furnished by Semelab is believed
to be both accurate and reliable at the time of going to press. However Semelab assumes no responsibility for any errors or omissions discovered in its use.
Semelab encourages customers to verify that datasheets are current before placing orders.
Semelab plc.
Telephone +44(0)1455 556565. Fax +44(0)1455 552612.
Website: http://www.semelab.co.uk
E-mail: [email protected]
Document Number 6509
Issue 3
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