MRF15030 Datasheet, PDF (4/8 Pages) Motorola, Inc – RF POWER TRANSISTOR

TYPICAL CHARACTERISTICS
3
109
MTBF Limited
2.5
Tflange = 75° C
108
2
Tflange = 100°C
107
1.5
106
1
TJ = 175°C
0.5
105
0
0
4
104
8
12
16
20
24
28
100 120 140 160 180 200 220 240 260
VCE, COLLECTOR VOLTAGE (Vdc)
TJ, JUNCTION TEMPERATURE (°C)
Figure 9. DC Safe Operating Area
Figure 10. MTBF Factor versus
Junction Temperature
The above graph displays calculated MTBF in hours x ampere2
emitter current. Life tests at elevated temperatures have correlated
to better than ±10% of the theoretical prediction for metal failure.
Divide MTBF Factor by IC2 for MTBF in a particular application.
1.5 ^1.55
f = 1.6 GHz
1.4 ^1.45
Zin
ZOL*
1.5
f = 1.6 GHz
1.4
1.55 _1.45
Zo = 10 Ω
f
Zin
(GHz)
(Ω)
Z*OL
(Ω)
1.40
1.15 + j4.25
1.87 + j0.78
1.45
1.15 + j4.55
1.67 + j0.78
1.50
1.20 + j4.80
1.47 + j0.78
1.55
1.45 + j5.15
1.27 + j0.78
1.60
1.89 + j5.25
1.00 + j0.78
Z*OL = Conjugate of optimum load impedance into
which the device operates at a given output
power, voltage and frequency.
Figure 11. Input and Output Impedances with Circuit Tuned for Maximum Gain @ Pout = 30 Watts (PEP),
VCC = 26 Volts, ICQ = 125 mA, and Driven by Two Equal Amplitude Tones with Separation of 100 KHz
MRF15030
4
MOTOROLA RF DEVICE DATA