ARF521 datasheet(3/4 Pages) MICROSEMI

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ARF521

DS, DRAIN-TO-SOURCE VOLTAGE (VOLTS)

Figure 6, Typical Output Characteristics

12V

10V

11V

SINGLE PULSE

10-5

10-4

10-3

10-2

10-1

1.0

RECTANGULAR PULSE DURATION (SECONDS)

FIGURE 7a, MAXIMUM EFFECTIVE TRANSIENT THERMAL IMPEDANCE, JUNCTION-TO-CASE vs PULSE DURATION

0.70

0.60

0.50

0.40

0.30

0.20

0.10

0.5

0.1

0.3

0.7

0.05

D = 0.9

C, CASE TEMPERATURE (°C)

Figure 5, Typical Threshold Voltage vs Temperature

1.10

1.05

1.00

0.95

0.90

-50 -25

100 125 150

Figure 7b, TRANSIENT THERMAL IMPEDANCE MODEL

0.256

0.213

0.131

0.00496F

0.0590F

0.635F

Transient Thermal Impedance RC Model

Dissipated Power

(Watts)

J (C)

C (C)

EXT are the external thermal

impedances: Case to sink, sink to

ambient, etc. Set to zero when modeling

only the case to junction.

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

Freq. (MHz)

in (Ω)ZOL (Ω)

2.0

13.5

100

24 - j 4.5

8.3 - j 11.6

2.5 - j 7.1

1.0 - j 4.2

.30 - j 1.1

.25 + j 0.3

.35 + j 1.6

55 - j 4

45 - j 22

28.7 - j 28

17.9 - j 26

9.0 - j 20.6

5.8 - j 17

4 - j 14.2

IN - Gate shunted with 25Ω

dq = 50mA

OL - Conjugate of optimum load for 150 Watts output at Vdd=125V

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