Figure 5, Typical Threshold Voltage vs Temperature

Figure 6, Typical Output Characteristics

0

5

10

15

20

25

30

ARF465A/B

5.5V

4.5V

5V

6V

VGS=15V, 10V, 7V

1.0

RECTANGULARPULSEDURATION(SECONDS)

Figure 9, Typical Maximum Effective Transient Thermal Impedance, Junction-To-Case vs Pulse Duration

Note:

Duty Factor D =

t1/t

2

Peak TJ = PDM x ZθJC + TC

t1

t2

6.5V

10

8

6

4

2

0

Table 1 - Typical Class AB Large Signal Input - Output Impedance

Freq. (MHz)

Zin (Ω)

Z

2.0

13.5

27

40

65

21.4 -j 8.7

2.6 -j 7.3

.54 -j 2.9

.22 -j .69

.31 +j 1.65

206 -j 45

68 -j 99

22 -j 64

10.5 -j 44

4.4 -j 27

Zin - Gate shunted with 25Ω

Z

Conjugate of optimum load for 150 Watts output at Vdd = 300V

SINGLE PULSE

0.5

0.1

0.3

0.7

0.9

0.05

1.2

1.1

1

0.9

0.8

0.7

0.6

-50

-25

0

25

50

75

100

125

0.60

0.50

0.40

0.30

0.20

0.10

0

Figure 9a, TRANSIENT THERMAL IMPEDANCE MODEL

0.0284

0.165

0.307

0.00155F

0.00934F

0.128F

Power

(Watts)

Junction

temp. ( ”C)

RC MODEL

Case temperature