MOTOROLA MRF421

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by MRF421/D
SEMICONDUCTOR TECHNICAL DATA
The RF Line
Designed primarily for application as a high–power linear amplifier from 2.0 to
30 MHz.
• Specified 12.5 Volt, 30 MHz Characteristics —
Output Power = 100 W (PEP)
Minimum Gain = 10 dB
Efficiency = 40%
100 W (PEP), 30 MHz
RF POWER
TRANSISTORS
NPN SILICON
• Intermodulation Distortion @ 100 W (PEP) —
IMD = – 30 dB (Min)
• 100% Tested for Load Mismatch at all Phase Angles with 30:1 VSWR
CASE 211–11, STYLE 1
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Collector–Emitter Voltage
VCEO
20
Vdc
Collector–Base Voltage
VCBO
45
Vdc
Emitter–Base Voltage
VEBO
3.0
Vdc
Collector Current — Continuous
IC
20
Adc
Withstand Current — 10 s
—
30
Adc
Total Device Dissipation @ TC = 25°C
Derate above 25°C
PD
290
1.66
Watts
W/°C
Storage Temperature Range
Tstg
– 65 to +150
°C
Symbol
Max
Unit
RθJC
0.6
°C/W
THERMAL CHARACTERISTICS
Characteristic
Thermal Resistance, Junction to Case
ELECTRICAL CHARACTERISTICS (TC = 25°C unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
Collector–Emitter Breakdown Voltage (IC = 50 mAdc, IB = 0)
V(BR)CEO
20
—
—
Vdc
Collector–Emitter Breakdown Voltage (IC = 200 mAdc, VBE = 0)
V(BR)CES
45
—
—
Vdc
Collector–Base Breakdown Voltage (IC = 200 mAdc, IE = 0)
V(BR)CBO
45
—
—
Vdc
Emitter–Base Breakdown Voltage (IE = 10 mAdc, IC = 0)
V(BR)EBO
3.0
—
—
Vdc
ICES
—
—
10
mAdc
OFF CHARACTERISTICS
Collector Cutoff Current (VCE = 16 Vdc, VBE = 0, TC = 25°C)
(continued)
REV 1
RF DEVICE DATA
MOTOROLA
Motorola, Inc. 1997
MRF421
1
ELECTRICAL CHARACTERISTICS – continued (TC = 25°C unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
hFE
10
70
—
—
Cob
—
550
800
pF
Common–Emitter Amplifier Power Gain
(VCC = 12.5 Vdc, Pout = 100 W, IC(max) = 10 Adc,
ICQ = 150 mAdc, f = 30, 30.001 MHz)
GPE
10
12
—
dB
Collector Efficiency
(VCC = 12.5 Vdc, Pout = 100 W, IC(max) = 10 Adc,
ICQ = 150 mA, f = 30, 30.001 MHz)
η
40
—
—
%
IMD
—
– 33
– 30
dB
ON CHARACTERISTICS
DC Current Gain
(IC = 5.0 Adc, VCE = 5.0 Vdc)
DYNAMIC CHARACTERISTICS
Output Capacitance
(VCB = 12.5 Vdc, IE = 0, f = 1.0 MHz)
FUNCTIONAL TESTS
Intermodulation Distortion (1)
(VCE = 12.5 Vdc, Pout = 100 W, IC = 10 Adc,
ICQ = 150 mA, f = 30, 30.001 MHz)
NOTE:
1. To proposed EIA method of measurement. Reference peak envelope power.
R1
+
BIAS
+
L5
CR1
C5
C6
–
C7
L4
C8
C9
C10
L2
–
C4
RF
INPUT
C2
12.5 Vdc
RF
OUTPUT
L1
D.U.T.
C1
R2
C1, C2, C4 — 170 – 780 pF, ARCO 469
C3 — 80 – 480 pF, ARCO 466
C5, C7, C10 — ERIE 0.1 µF, 100 V
C6 — MALLORY 500 µF @ 15 V Electrolytic
C9 — 100 µF, 15 V Electrolytic
C8 — 1000 pF, 350 V UNDERWOOD
R1 — 10 Ω, 25 Watt Wirewound
C3
L3
R2 — 10 Ω, 1.0 Watt Carbon
CR1 — 1N4997
L1 — 3 Turns, #16 Wire, 5/16″ I.D., 5/16″ Long
L2 — 12 Turns, #16 Enameled Wire Closewound, 1/4″ I.D.
L3 — 1–3/4 Turns, 1/8″ Tubing, 3/8″ I.D., 3/8″ Long
L4 — 10 µH Molded Choke
L5 — 10 Ferrite Beads — FERROXCUBE #56–590–65/3B
Figure 1. 30 MHz Test Circuit Schematic
MRF421
2
MOTOROLA RF DEVICE DATA
160
VCC = 12.5 V
ICQ = 150 mA
TWO TONE TEST:
f = 30, 30.001 MHz
120
Pout , OUTPUT POWER (WATTS PEP)
Pout , OUTPUT POWER (WATTS PEP)
160
80
40
0
0
4
8
12
Pin, INPUT POWER (WATTS PEP)
120
80
40
0
16
IMD = – 30 dB
ICQ = 150 mA
f = 30, 30.001 MHz
8
Figure 2. Output Power versus Input Power
16
Figure 3. Output Power versus Supply Voltage
– 20
IMD, INTERMODULATION DISTORTION (dB)
25
20
G PE , POWER GAIN (dB)
10
12
14
VCC, SUPPLY VOLTAGE (VOLTS)
15
10
VCC = 12.5 V
ICQ = 150 mA
Pout = 100 W PEP
5
0
1.5
2
3
5
7
10
f, FREQUENCY (MHz)
15
20
30
Figure 4. Power Gain versus Frequency
VCC = 12.5 V
ICQ = 150 mA
f = 30, 30.001 MHz
– 25
– 30
– 35
3RD ORDER
– 40
5TH ORDER
– 45
0
20
40
60
80
100
Pout, OUTPUT POWER (WATTS PEP)
120
140
Figure 5. Intermodulation Distortion
versus Output Power
IC, COLLECTOR CURRENT (AMP)
40
20
30
8
TC = 25°C
4
15
Zin
2
7.5
0.8
0.4
1
2
5
10
20
50
VCE, COLLECTOR–EMITTER VOLTAGE (VOLTS)
Figure 6. DC Safe Operating Area
MOTOROLA RF DEVICE DATA
100
VCC = 12.5 V
ICQ = 150 mA
Pout = 100 W PEP
FREQUENCY
MHz
Zin
Ohms
2.0
7.5
15
30
5.35 – j2.2
2.8 – j1.9
1.39 – j1.1
0.7 – j0.5
f = 2 MHz
Figure 7. Series Equivalent Impedance
MRF421
3
2.5
Rout , PARALLEL EQUIVALENT OUTPUT
RESISTANCE (OHMS)
Cout , PARALLEL EQUIVALENT OUTPUT
CAPACITANCE (pF)
20,000
VCC = 12.5 V
ICQ = 150 mA
Pout = 100 W (PEP)
16,000
12,000
8000
4000
0
1.5
2
3
5
7
10
f, FREQUENCY (MHz)
15
20
30
VCC = 12.5 V
ICQ = 150 mA
Pout = 100 W (PEP)
2
1.5
1
0.5
0
1.5
Figure 8. Output Capacitance versus Frequency
2
3
5
7
10
f, FREQUENCY (MHz)
15
20
30
Figure 9. Output Resistance versus Frequency
PACKAGE DIMENSIONS
A
U
NOTES:
1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
2. CONTROLLING DIMENSION: INCH.
M
1
M
Q
DIM
A
B
C
D
E
H
J
K
M
Q
R
U
4
R
2
B
3
D
K
J
C
H
E
SEATING
PLANE
STYLE 1:
PIN 1.
2.
3.
4.
INCHES
MIN
MAX
0.960
0.990
0.465
0.510
0.229
0.275
0.216
0.235
0.084
0.110
0.144
0.178
0.003
0.007
0.435
–––
45 _NOM
0.115
0.130
0.246
0.255
0.720
0.730
MILLIMETERS
MIN
MAX
24.39
25.14
11.82
12.95
5.82
6.98
5.49
5.96
2.14
2.79
3.66
4.52
0.08
0.17
11.05
–––
45 _NOM
2.93
3.30
6.25
6.47
18.29
18.54
EMITTER
BASE
EMITTER
COLLECTOR
CASE 211–11
ISSUE N
Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding
the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit,
and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters can and do vary in different
applications. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. Motorola does
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associated with such unintended or unauthorized use, even if such claim alleges that Motorola was negligent regarding the design or manufacture of the part.
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MRF421
4
◊
*MRF421/D*
MRF421/D
MOTOROLA RF DEVICE
DATA