ARF446 Datasheet, PDF (3/4 Pages) Advanced Power Technology – N-CHANNEL ENHANCEMENT MODE

ARF446/447
1.2
1.1
1.0
0.9
0.8
0.7
0.6
-50 -25 0 25 50 75 100 125 150
T_C, CASE TEMPERATURE (°C)
Figure 5, Typical Threshold Voltage vs Temperature
300
Class C
250
V_DD = 250V
f = 40.68 MHz
200
150
100
50
0
0
2
4
6
8
10
P_IN, POWER IN (WATTS)
Figure 7, Typical Power Out vs Power In
16
VGS=6.5, 8, 10 & 15V
12
6V
8
5.5V
4
5V
4.5V
0
1
5
10 15 20 25 30
V_DS, DRAIN-TO-SOURCE VOLTAGE (VOLTS)
Figure 6, Typical Output Characteristics
18
Class C
V_DD = 250V
16 f = 40.68 MHz
14
12
10
8
0
50 100 150 200 250 300
P_OUT, POWER OUT (WATTS)
Figure 8, Typical Common Source Amplifier Gain vs Power Out
0.6
0.1
0.05
0.01
0.005
0.001
10^-5
D=0.5
0.2
0.1
0.05
0.02
0.01
SINGLE PULSE
Note:
t1
t2
Duty Factor D = ^t1/t2
Peak TJ = PDM x Z_θJC + TC
10^-4
10^-3
10^-2
10^-1
1.0
10
RECTANGULAR PULSE DURATION (SECONDS)
Figure 9, Typical Maximum Effective Transient Thermal Impedance, Junction-To-Case vs Pulse Duration
Table 1 - Typical Class C Large Signal Input-Output Impedance
Freq. (MHz)
Z_in (Ω)
Z_OL (Ω)
2.0
20.40 - j 9.6
142.0 - j 20
13.5
2.10 - j 6.4
73.0 - j 71
27.0
0.50 - j 2.3
30.0 - j 57
40.0
0.30 - j 0.4
15.0 - j 42
65.0
0.46 + j 2.0
6.2 - j 25
Z_in - gate shunted by 25Ω
Z_OL - conjugate of optimum load impedance for 250W at 250V