ARF444 데이터 시트보기 (PDF) - Advanced Power Technology
부품명
상세내역
제조사
ARF444 Datasheet PDF : 4 Pages
| |||
DYNAMIC CHARACTERISTICS
Symbol Characteristic
Ciss
Coss
Crss
Input Capacitance
Output Capacitance
Reverse Transfer Capacitance
Test Conditions
VGS = 0V
VDS = 300V
f = 1 MHz
ARF444/445
MIN TYP MAX UNIT
1500 1800
90 130 pF
28
50
FUNCTIONAL CHARACTERISTICS
Symbol Characteristic
Test Conditions
MIN TYP MAX UNIT
GPS Common Source Amplifier Power Gain
η
Drain Efficiency
ψ
Electrical Ruggedness VSWR 30:1
VDD = 300V
VGS = 0V
Pout = 300W
f = 13.56MHz
17 18.7
dB
83
%
No Degradation in Output Power
1 Pulse Test: Pulse width < 380 µS, Duty Cycle < 2%
APT Reserves the right to change, without notice, the specifications and information contained herein.
TYPICAL 13.56 MHz, 1000 WATT PUSH-PULL CLASS 'C' POWER AMPLIFIER CIRCUIT
Circuit Characteristics
Pout = 1000W
Gain = 16.5dB
Efficiency = 80%
J1
RF INPUT
R1-R4
R5-R8
T1
C1
R9-R12
R13-R16
Q1
L1
Q2
BFC1
J2
RF OUTPUT
Q3
L2
T2
RFC1
J3
300VDC
Q4 C2 C3 C4 C5
C6
C7
C8
Parts List
R1-R16 = 4.7Ω 1W
C1 = 200pF Chip Capacitor
C2-C6 = 0.1µF Disk Ceramic
C7, C8 = 0.01 Disk Ceramic
Q1, Q3 = ARF444
Q2, Q4 = ARF445
L1, L2 = 0.37µH: 6T, #18AWG, ID=0.438
RFC1 = 2T, #14 PTFE coated twisted pair on a Fair-Rite #2643665702 shield bead, µi=850
T1 = 9:1 (Z) conventional transformer; 3:1 (T), #18 stranded PTFE coated wire on two Fair-Rite #2643540002, µi=850
T2 = 1:1 (Z) conventional transformer; 2:2 (T), #14 stranded PTFE coated wire on two stacks of three
Fair-Rite #2643102002 shielded bead, µi=850
BFC1 = 6T, #18 Twisted pair stranded PTFE coated wire on three stacked Indiana General Toroid #F624-19-Q1 µi=125
Share Link: 