MOTOROLA MRF247

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by MRF247/D
SEMICONDUCTOR TECHNICAL DATA
The RF Line
The MRF247 is designed for 12.5 Volt VHF large–signal amplifier applications
in industrial and commercial FM equipment operating to 175 MHz.
• Specified 12.5 Volt, 175 MHz Characteristics —
Output Power = 75 Watts
Power Gain = 7.0 dB Min
Efficiency = 55% Min
75 W, 175 MHz
CONTROLLED Q
RF POWER
TRANSISTOR
NPN SILICON
• Characterized With Series Equivalent Large–Signal Impedance Parameters
• Internal Matching Network Optimized for Minimum Gain Frequency Slope
Response Over the Range 136 to 175 MHz
• Load Mismatch Capability at Rated Pout and Supply Voltage
CASE 316–01, STYLE 1
MAXIMUM RATINGS
Rating
Symbol
Value
Unit
Collector–Emitter Voltage
VCEO
18
Vdc
Collector–Base Voltage
VCBO
36
Vdc
Emitter–Base Voltage
VEBO
4.0
Vdc
Collector Current — Peak
IC
20
Adc
Total Device Dissipation @ TC = 25°C (1)
Derate above 25°C
PD
250
1.43
Watts
W/°C
Storage Temperature Range
Tstg
– 65 to +150
°C
Symbol
Max
Unit
RθJC
0.7
°C/W
THERMAL CHARACTERISTICS
Characteristic
Thermal Resistance, Junction to Case (2)
ELECTRICAL CHARACTERISTICS (TC = 25°C unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
Collector–Emitter Breakdown Voltage
(IC = 100 mAdc, IB = 0)
V(BR)CEO
18
—
—
Vdc
Collector–Emitter Breakdown Voltage
(IC = 50 mAdc, VBE = 0)
V(BR)CES
36
—
—
Vdc
Emitter–Base Breakdown Voltage
(IE = 10 mAdc, IC = 0)
V(BR)EBO
4.0
—
—
Vdc
OFF CHARACTERISTICS
(1) This device is designed for RF operation. The total device dissipation rating applies only when the device is operated as an RF amplifier.
(2) Thermal Resistance is determined under specified RF operating conditions by infrared measurement techniques.
REV 1
RF DEVICE DATA
MOTOROLA
Motorola, Inc. 1997
MRF247
1
ELECTRICAL CHARACTERISTICS (TC = 25°C unless otherwise noted.)
Characteristic
Symbol
Min
Typ
Max
Unit
hFE
10
75
150
—
Cob
—
235
300
pF
Common–Emitter Amplifier Power Gain
(VCC = 12.5 Vdc, Pout = 75 Watts, f = 175 MHz)
GPE
7.0
8.5
—
dB
Collector Efficiency
(VCC = 12.5 Vdc, Pout = 75 Watts, f = 175 MHz)
η
55
60
—
%
Load Mismatch
(VCC = 12.5 Vdc, Pout = 75 Watts, f = 175 MHz,
VSWR = 30:1 All Phase Angles)
ψ
ON CHARACTERISTICS
DC Current Gain
(IC = 5.0 Adc, VCE = 5.0 Vdc)
DYNAMIC CHARACTERISTICS
Output Capacitance
(VCB = 15 Vdc, IE = 0, f = 1.0 MHz)
FUNCTIONAL TESTS
No Degradation in Output Power
L3
L6
+
NC
+
C4
C6
C13
C16
+
12.5 V
–
L2
C3
C10
L4
C12
D.U.T.
L1
C1
C2
C1, C17
C2, C14
C3
C4, C16
C5
C6, C13
C7, C8
C9, C10
C8
L5
C7
C5
C9
330 pF ATC 100 mil Ceramic Capacitor
Johansen 1–20 pF Trimmer Capacitor
40 pF Standard Unelco Clamped Mica Capacitor
Sprague 10 µF – 35 Vdc Electrolytic Capacitor
80 pF Standard Unelco Clamped Mica Capacitor
91 pF Mini–Unelco Clamped Mica Capacitor
240 pF ATC 100 mil Ceramic Capacitor
180 pF ATC 100 mil Ceramic Capacitor
C15
C11
C12
C15
L1
L2, L4
L3, L6
L5
C11
C17
C14
150 pF Standard Unelco Clamped Mica Capacitor
33 pF Mini–Unelco Clamped Mica Capacitor
27 pF Mini–Unelco Clamped Mica Capacitor
2 Turns, 16 AWG Enameled, IDIA 0.13″
4 Turns, 18 AWG Enameled, IDIA 0.18″
VK 200 with Ferrite Bead
2 Turns, 16 AWG Enameled, IDIA 0.15″
Figure 1. Output Power versus Input Power
100
14
150 MHz
GPE , POWER GAIN (dB)
Pout , OUTPUT POWER (WATTS)
16
80
175 MHz
60
f = 136 MHz
12
10
8
6
4
VCC = 12.5 V
40
Pout = 75 W
VCC = 12.5 V
2
4
MRF247
2
6
8
10
12
14
16
18
20
22
24
0
130
140
150
160
170
Pin, INPUT POWER (WATTS)
f, FREQUENCY (MHz)
Figure 2. Output Power versus Input Power
Figure 3. Power Gain versus Frequency
180
MOTOROLA RF DEVICE DATA
Pin = 12 W
100
10 W
80
8W
60
40
10
11
12
13
14
15
16
10 W
100
8W
80
60
40
f = 136 MHz
9
Pout , OUTPUT POWER (WATTS)
Pin = 12 W
120
Pout , OUTPUT POWER (WATTS)
Pout , OUTPUT POWER (WATTS)
120
17
f = 150 MHz
9
10
11
12
13
14
15
16
VCC, SUPPLY VOLTAGE (VOLTS)
VCC, SUPPLY VOLTAGE (VOLTS)
Figure 4. Output Power versus Supply Voltage
Figure 5. Output Power versus Supply Voltage
120
Pin = 12 W
100
10 W
0
8W
17
+J1.0
80
+J2.0
150
60
1.0
40
f = 175 MHz
9
10
11
12
13
14
15
16
VCC, SUPPLY VOLTAGE (VOLTS)
Zin
f = 136 MHz
f = 136 MHz
175
+J3.0
175
150
ZOL*
17
2.0
Figure 6. Output Power versus Supply Voltage
VCC = 12.5 V, Pout = 75 W
3.0
4.0
5.0
f
MHz
Zin
Ohms
ZOL*
Ohms
136
150
175
0.57 + j1.07
0.55 + j1.13
0.57 + j1.92
1.13 + j0.65
1.13 + j0.73
0.87 + j1.13
ZOL* = Conjugate of the optimum load
ZOL* = impedance into which the device
ZOL* = operates at a given output power,
ZOL* = voltage and frequency.
6.0
Figure 7. Series Equivalent Impedances
MOTOROLA RF DEVICE DATA
MRF247
3
PACKAGE DIMENSIONS
F
D
4
R
NOTES:
1. FLANGE IS ISOLATED IN ALL STYLES.
K
3
DIM
A
B
C
D
E
F
H
J
K
L
N
Q
R
U
1
Q
2
L
B
C
J
E
N
INCHES
MIN
MAX
24.38
25.14
12.45
12.95
5.97
7.62
5.33
5.58
2.16
3.04
5.08
5.33
18.29
18.54
0.10
0.15
10.29
11.17
3.81
4.06
3.81
4.31
2.92
3.30
3.05
3.30
11.94
12.57
MILLIMETERS
MIN
MAX
0.960
0.990
0.490
0.510
0.235
0.300
0.210
0.220
0.085
0.120
0.200
0.210
0.720
0.730
0.004
0.006
0.405
0.440
0.150
0.160
0.150
0.170
0.115
0.130
0.120
0.130
0.470
0.495
H
STYLE 1:
PIN 1.
2.
3.
4.
U
A
EMITTER
COLLECTOR
EMITTER
BASE
CASE 316–01
ISSUE D
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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 which may be provided in Motorola
data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals”
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arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that
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are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal
Opportunity/Affirmative Action Employer.
Mfax is a trademark of Motorola, Inc.
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MRF247
4
◊
MRF247/D
MOTOROLA RF DEVICE
DATA