ARF473

Note:

Duty Factor D = t1/t2

Peak TJ = PDM x ZθJC + TC

t1

t2

1.0

10

RECTANGULAR PULSE DURATION (SECONDS)

Figure 7, Maximum Effective Transient Thermal Impedance, Junction-to-Case vs. Pulse Duration

0.4

0.1

0.05

0.01

0.005

0.001

0.1

0.02

0.05

0.2

D=0.5

0.01

SINGLE PULSE

9V

Figure 5, Typical Threshold Voltage vs Temperature

Figure 6, Typical Output Characteristics

1.2

1.0

0.8

0.6

0.4

0.2

0.0

-50 -25

0

25

50

75

100 125 150

0

5

10

15

20

25

30

5.5V

4.5V

4V

5V

VGS=15 & 10V

6V

8V

25

20

15

10

5

0

Table 1 - Typical Series Equivalent Large Signal Input - Output Impedance

Freq. (MHz)

27.12

40.68

63.8

81.36

127.4

4.78 - j 14.3

1.96 - j 9

0.59 - j 4.1

0.31 - j 1.65

0.4 + j 2.66

49 - j 38.8

33.6 - j 39.5

18 - j 33.5

12.3 - j 29

5.5 - j 20.3

Zin - Gate shunted with 100Ω

Input and output impedances are measured from gate to gate and

drain to drain respectively

Zin (Ω)