DYNAMIC CHARACTERISTICS

ARF449A/449B

Symbol

C

iss

C

oss

C

rss

t

d(on)

t

r

t

d(off)

t

f

Characteristic

Input Capacitance

Output Capacitance

Reverse Transfer Capacitance

Turn-on Delay Time

Rise Time

Turn-off Delay Time

Fall Time

Test Conditions

V

GS

= 0V

V

DS

= 150V

f = 1 MHz

V

GS

= 15V

V

DD

= 0.5 V

DSS

I

D

= I

D[Cont.]

@ 25°C

R

G

= 1.6ý

MIN

TYP

MAX

980

1200

87

120

25

40

510

3.1

7

15

25

37

UNIT

pF

ns

FUNCTIONAL CHARACTERISTICS

Symbol

G

PS

η

ψ

Test Conditions

f = 81.36 MHz

V

GS

= 0V

V

DD

= 150V

No Degradation in Output Power

Characteristic

Common Source Amplifier Power Gain

Drain Efficiency

Electrical Ruggedness VSWR 20:1

MIN

TYP

MAX

12

13

70

75

UNIT

dB

%

APT Reserves the right to change, without notice, the specifications and information contained herein.

1

5

10

50 100

500

FREQUENCY (MHz)

Figure 1, Typical Gain vs Frequency

30

25

20

15

10

5

0

30

45

60

75

90

105

120

Class C

V

DD

= 150V

P

out

= 150W

16

12

8

4

0

0

2

468

Figure 2, Typical Capacitance vs. Drain-to-Source Voltage

3000

1000

500

100

50

10

1

5

10

50

150

Figure 4, Typical Maximum Safe Operating Area

Figure 3, Typical Transfer Characteristics

VDS> ID (ON) x RDS (ON)MAX.

250µSEC. PULSE TEST

@ <0.5 % DUTY CYCLE

TJ = -55°C

TJ = -55°C

TJ = +125°C

TJ = +25°C

TC =+25°C

TJ =+150°C

SINGLE PULSE

OPERATION HERE

LIMITED BY RDS (ON)

Ciss

Coss

Crss

50

10

5

1

.5

.1

10µS

1mS

10mS

100mS

DC

100µS