參數(shù)資料
型號(hào): BLF543
廠商: NXP SEMICONDUCTORS
元件分類: 功率晶體管
英文描述: UHF power MOS transistor
中文描述: UHF BAND, Si, N-CHANNEL, RF POWER, MOSFET
封裝: SOT-171A, 6 PIN
文件頁數(shù): 6/14頁
文件大?。?/td> 96K
代理商: BLF543
October 1992
6
Philips Semiconductors
Product specification
UHF power MOS transistor
BLF543
APPLICATION INFORMATION FOR CLASS-B OPERATION
T
h
= 25
°
C; R
th
mb-h
= 0.4 K/W, unless otherwise specified.
RF performance in a common source class-B circuit.
MODE OF OPERATION
f
(MHz)
V
DS
(V)
I
DQ
(mA)
P
L
(W)
G
p
(dB)
>
12
typ. 15
typ. 8
typ. 8
η
D
(%)
>
50
typ. 60
typ. 50
typ. 50
CW class-B
500
28
20
10
CW class-B
CW class-B
960
960
28
24
20
20
10
7.5
Ruggedness in class-B operation
The BLF543 is capable of withstanding a full load
mismatch corresponding to VSWR = 50 through all phases
under the following conditions:
V
DS
= 28 V; f = 500 MHz at rated output power.
Fig.9
Power gain and efficiency as functions of
load power, typical values.
Class-B operation; V
= 28 V; I
DQ
= 20 mA;
Z
L
= 8.4
+
j14.3
; f = 500 MHz.
handbook, halfpage
0
Gp
η
D
20
10
0
5
Gp
(dB)
80
60
40
20
η
D
(%)
PL (W)
10
15
MDA490
Fig.10 Load power as a function of input power,
typical values.
Class-B operation; V
= 28 V; I
DQ
= 20 mA;
Z
L
= 8.4
+
j14.3
; f = 500 MHz.
handbook, halfpage
0
10
5
0
0.5
PL
(W)
PIN (W)
1
1.5
MDA489
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