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S
D
ARF1505
S
ARF1505
BeO
1525-xx
RF POWER MOSFET
N - CHANNEL ENHANCEMENT MODE
S
G
S
300V
750W
40MHz
The ARF1505 is an RF power transistor designed for off-line 300V operation in very high power scientific, commercial,
medical and industrial RF power generator and amplifier applications up to 40 MHz.
• Specified 300 Volt, 27.12 MHz Characteristics:
•
Output Power = 750 Watts.
•
Gain = 17dB (Class C)
•
Efficiency > 75%
• High Performance Power RF Package.
• Very High Breakdown for Improved Ruggedness.
• Low Thermal Resistance.
• Nitride Passivated Die for Improved Reliability.
• RoHS Compliant
All Ratings: TC = 25°C unless otherwise specified.
MAXIMUM RATINGS
Symbol
VDSS
ID
Parameter
Drain-Source Voltage
Continuous Drain Current @ TC = 25°C
VGS
Gate-Source Voltage
PD
Total Device Dissipation @ TC = 25°C
TJ,TSTG
TL
ARF1505
UNIT
1200
Volts
25
Amps
±30
Volts
1500
Watts
-55 to 175
Operating and Storage Junction Temperature Range
°C
300
Lead Temperature: 0.063" from Case for 10 Sec.
STATIC ELECTRICAL CHARACTERISTICS
Symbol
BVDSS
VDS(ON)
IDSS
IGSS
gfs
Characteristic / Test Conditions
Drain-Source Breakdown Voltage (VGS = 0V, ID = 250 μA)
On State Drain Voltage
1
MIN
TYP
MAX
8
9.5
1200
(I D(ON) = 12.5A, VGS = 10V)
100
Zero Gate Voltage Drain Current (VDS = VDSS, VGS = 0V)
Zero Gate Voltage Drain Current (VDS = 0.8 VDSS, VGS = 0V, TC = 125°C)
1000
Gate-Source Leakage Current (VGS = ±30V, VDS = 0V)
±400
Forward Transconductance (VDS = 25V, ID = 12.5A)
Visolation
RMS Voltage (60Hz Sinewave from terminals to mounting surface for 1 minute)
VGS(TH)
Gate Threshold Voltage (VDS = VGS, ID = 50mA)
5.5
6
UNIT
Volts
μA
nA
mhos
TBD
Volts
3
5
Volts
MAX
UNIT
Symbol Characteristic (per package unless otherwise noted)
MIN
TYP
0.10
RθJC
Junction to Case
RθJHS
Junction to Sink (Use High Efficiency Thermal Joint Compound and Planar Heat Sink Surface.)
0.16
CAUTION: These Devices are Sensitive to Electrostatic Discharge. Proper Handling Procedures Should Be Followed.
Microsemi Website - http://www.microsemi.com
°C/W
050-4922 Rev F 10-2008
THERMAL CHARACTERISTICS
DYNAMIC CHARACTERISTICS
Symbol
ARF1505
Ciss
Input Capacitance
Coss
Output Capacitance
Crss
Reverse Transfer Capacitance
td(on)
Turn-on Delay Time
tr
td(off)
tf
MIN
TYP
MAX
5400
6500
VDS = 200V
f = 1 MHz
300
400
125
160
VGS = 15V
8
VDD = 0.5 VDSS
5
ID = ID[Cont.] @ 25°C
25
RG = 1.6Ω
13
Test Conditions
Characteristic
VGS = 0V
Rise Time
Turn-off Delay Time
Fall Time
UNIT
pF
ns
FUNCTIONAL CHARACTERISTICS
Symbol
GPS
η
Ψ
1
Characteristic
Common Source Amplifier Power Gain
Test Conditions
MIN
TYP
f = 27.12 MHz
15
17
dB
70
75
%
VGS = 0V
Drain Efficiency
Electrical Ruggedness VSWR 10:1
VDD = 300V
Pout = 750W
MAX
UNIT
No Degradation in Output Power
Pulse Test: Pulse width < 380 μS, Duty Cycle < 2%.
Microsemi reserves the right to change, without notice, the specifications and information contained herein.
Per transistor section unless otherwise specified.
20,000
10,000
Ciss
CAPACITANCE (pf)
5000
1000
Coss
500
Crss
100
.1
1
10
100 200
VDS, DRAIN-TO-SOURCE VOLTAGE (VOLTS)
Figure 1, Typical Capacitance vs. Drain-to-Source Voltage
100
50
VDS> ID (ON) x RDS (ON)MAX.
250μSEC. PULSE TEST
@ <0.5 % DUTY CYCLE
TJ = -55°C
40
30
20
10
0
TJ = +25°C
TJ = +125°C
DATA FOR BOTH SIDES
IN PARALLEL
ID, DRAIN CURRENT (AMPERES)
ID, DRAIN CURRENT (AMPERES)
050-4922 Rev F 10-2008
60
50
1ms
10
5
1
0
2
4
6
8
10
12
14
VGS, GATE-TO-SOURCE VOLTAGE (VOLTS)
Figure 2, Typical Transfer Characteristics
100us
OPERATION HERE
LIMITED BY R
(ON)
DS
10ms
TC =+25°C
TJ =+200°C
SINGLE PULSE
1
5 10
50 100
1200
VDS, DRAIN-TO-SOURCE VOLTAGE (VOLTS)
Figure 3, Typical Maximum Safe Operating Area
100ms
1.15
35
1.10
30
ARF1505
ID, DRAIN CURRENT (AMPERES)
VGS(th), THRESHOLD VOLTAGE
(NORMALIZED)
VGS = 10 & 9V
1.05
1.00
0.95
0.90
0.85
0.80
8V
25
7V
20
15
6V
10
5V
5
0
0.75
-50 -25
0
25 50 75 100 125 150
TC, CASE TEMPERATURE (°C)
Figure 4, Typical Threshold Voltage vs Temperature
0
5
10
15
20
25
30
VDS, DRAIN-TO-SOURCE VOLTAGE (VOLTS)
Figure 5, Typical Output Characteristics
0.10
D = 0.9
0.08
0.7
0.06
0.5
0.04
Note:
PDM
Z JC, THERMAL IMPEDANCE (°C/W)
θ
0.12
0.3
t1
t2
0.02
t
0.05
0
Duty Factor D = 1/t2
Peak TJ = PDM x ZθJC + TC
0.1
10
-5
SINGLE PULSE
10-3
10-2
10 -1
RECTANGULAR PULSE DURATION (SECONDS)
Figure 6, Maximum Effective Transient Thermal Impedance, Junction-to-Case vs. Pulse Duration
TYPICAL LARGE SIGNAL
INPUT - OUPUT
IMPEDANCE
CHARACTERISTICS
10
1.0
-4
F (MHz)
Zin (Ω)
ZOL (Ω)
2.0
13.5
27
40
5.4 - j 9.6
0.30 - j 1.2
0.26 + j .58
0.36 + j 1.6
46 - j 10.5
16.4 - j 23
4.9 - j 14.6
2.3 - j 10.3
Zin - Gate shunted with 25Ω
ZOL - Conjugate of optimum
load for 750 Watts output
IDQ = 100mA
Vdd = 300V
Clamp
1.065
.250
S
D
S
.500
Heat Sink
Thermal Considerations and Package Mounting:
The rated 1500W power dissipation is only available
when the package mounting surface is at 25°C and the
junction temperature is 175°C. The thermal resistance between junctions and case mounting surface
is 0.10°C/W. When installed, an additional thermal
impedance of 0.06°C/W between the package base and
the mounting surface is smooth and flat. Thermal joint
compound must be used to reduce the effects of small
surface irregularities. The heatsink should incorporate a
copper heat spreader to obtain best results.
1525-xx
1.065
.045
S
G
S
.207
.375
.207
.500
.005
.105 typ.
HAZARDOUS MATERIAL WARNING
D
G
S
The ceramic portion of the device between
leads and mounting surface is beryllium oxide,
BeO. Beryllium oxide dust is toxic when inhaled. Care must be taken during handling
and mounting to avoid damage to this area .
These devices must never be thrown away
with general industrial or domestic waste.
050-4922 Rev F 10-2008
The package is designed to be clamped to a heatsink. A
clamped joint maintains the required mounting pressure
while allowing for thermal expansion of both the device
and the heat sink. A simple clamp, and two 6-32 (M3.5)
screws can provide the minimum 125 lb. required
mounting force. T=4-6 in-lb. Please refer to App Note
1802 "Mounting Instructions for Flangeless Packages."
ARF15-BeO
A RF1505 -- 27.12 MHz Test Circ uit
300V
L4
C7
L3
C9
C 8 C 10
Output
C6
L2
L1
C1
C2
C 12
C5
R1
V bias
C3
RF
Input
C4
T L1
C 11
R2
R3
135-05
050-4922 Rev F 10-2008
27 MHz Amp ARF1505
A RF 1500
27 MHz Amp ARF1505
ARF 1505
B eO
J1
C1, C7, C8, C11 .047mF 500V cerami disc
C2, C12 Arco 465 75-380pF mica trimmer
C3 2x 4700pF ATC 700B
C4, C9-C10 8200pF 500V NPO ceramic
C5 200pF ATC 100E
C6 150pF ATC 700B
L1 90nH 4t # 18 0.25"d .25"I
L2 200nH - 3t # 8 1" dia 1"I
L3 6μH - 22t # 24 enam 0.5"dia
L4 500nH 2t on 850μ .5" bead
R1-R3 1KΩ 1/4W
TL1 .112" x 1" (50Ω) Stripline
201
J2
R F 11-04
R F 11-04