BLF244 NXP Semiconductors, BLF244 Datasheet - Page 6

• Manufacturer Part Number: BLF244
• Description: Silicon N-channel enhancement mode vertical D-MOS transistor designed for large signal amplifier applications in the VHF frequency range
• Manufacturer: NXP Semiconductors

Philips Semiconductors
APPLICATION INFORMATION FOR CLASS-B OPERATION
T
RF performance in CW operation in a common source class-B circuit.
Note
1. R1 included.
Ruggedness in class-B operation
The BLF244 is capable of withstanding a load mismatch corresponding to VSWR = 50 through all phases under the
following conditions: T
2003 Oct 13
handbook, halfpage
MODE OF OPERATION
CW, class-B
h
VHF power MOS transistor
= 25 C; R
V
Fig.8
GS
(pF)
C rs
= 0; f = 1 MHz.
20
10
0
0
Feedback capacitance as a function of
drain-source voltage; typical values.
th mb-h
= 3 K/W; unless otherwise specified.
h
= 25 C; R
(MHz)
20
175
175
f
th mb-h
12.5
V
V DS (V)
(V)
28
DS
= 0.3 K/W; at rated load power.
(mA)
I
25
25
MGP156
DQ
40
(W)
P
15
6
L
typ. 17
typ. 15
(dB)
G
13
6
P
typ. 65
typ. 60
(%)
50
D
3.0
3.0
( )
Z
j4.0
j4.0
i
(1)
6.3
4.5
( )
Z
j9.8
j3.3
L
Product specification
BLF244
46.4//46.4
100
( )
R1