3-119
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207
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Copyright
Intersil Corporation 1999
June 1998
FSF450D, FSF450R
9A, 500V, 0.600 Ohm, Rad Hard,
SEGR Resistant, N-Channel Power MOSFETs
Features
9A, 500V, r
DS(ON)
= 0.600
Total Dose
- Meets Pre-RAD Specifications to 100K RAD (Si)
Single Event
- Safe Operating Area Curve for Single Event Effects
- SEE Immunity for LET of 36MeV/mg/cm
2
with
V
DS
up to 80% of Rated Breakdown and
V
GS
of 10V Off-Bias
Dose Rate
- Typically Survives 3E9 RAD (Si)/s at 80% BV
DSS
- Typically Survives 2E12 if Current Limited to I
DM
Photo Current
- 30nA Per-RAD(Si)/s Typically
Neutron
- Maintain Pre-RAD Specifications
for 3E12 Neutrons/cm
2
- Usable to 3E13 Neutrons/cm
2
Formerly available as type TA17659.
Description
The Discrete Products Operation of Intersil Corporation has
developed a series of Radiation Hardened MOSFETs specif-
ically designed for commercial and military space applica-
tions. Enhanced Power MOSFET immunity to Single Event
Effects (SEE), Single Event Gate Rupture (SEGR) in particu-
lar, is combined with 100K RADS of total dose hardness to
provide devices which are ideally suited to harsh space envi-
ronments. The dose rate and neutron tolerance necessary
for military applications have not been sacrificed.
The Intersil portfolio of SEGR resistant radiation hardened
MOSFETs includes N-Channel and P-Channel devices in a
variety of voltage, current and on-resistance ratings.
umerous packaging options are also available.
This MOSFET is an enhancement-mode silicon-gate power
field-effect transistor of the vertical DMOS (VDMOS) struc-
ture. It is specially designed and processed to be radiation
tolerant. The MOSFET is well suited for applications
exposed to radiation environments such as switching regula-
tion, switching converters, motor drives, relay drivers and
drivers for high-power bipolar switching transistors requiring
high speed and low gate drive power. This type can be
operated directly from integrated circuits.
Reliability screening is available as either commercial, TXV
equivalent of MIL-S-19500, or Space equivalent of
MIL-S-19500. Contact Intersil for any desired deviations
from the data sheet.
Symbol
Package
TO-254AA
Ordering Information
RAD LEVEL
SCREENING LEVEL
PART NUMBER/BRAND
10K
Commercial
FSF450D1
10K
TXV
FSF450D3
100K
Commercial
FSF450R1
100K
TXV
FSF450R3
100K
Space
FSF450R4
D
G
S
CAUTION: Beryllia Warning per MIL-S-19500
refer to package specifications.
D
S
G
File Number
3970.3
3-120
Absolute Maximum Ratings
T
C
= 25
o
C, Unless Otherwise Specified
FSF450D, FSF450R
UNITS
Drain to Source Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .V
DS
500
V
Drain to Gate Voltage (R
GS
= 20k
) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
DGR
500
V
Continuous Drain Current
T
C
= 25
o
C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I
D
9
A
T
C
= 100
o
C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I
D
6
A
Pulsed Drain Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I
DM
27
A
Gate to Source Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .V
GS
20
V
Maximum Power Dissipation
T
C
= 25
o
C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P
T
125
W
T
C
= 100
o
C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . P
T
50
W
Linear Derating Factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.00
W/
o
C
Single Pulsed Avalanche Current, L = 100
H, (See Test Figure). . . . . . . . . . . . . . . . . . . . . . I
AS
27
A
Continuous Source Current (Body Diode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I
S
9
A
Pulsed Source Current (Body Diode) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I
SM
27
A
Operating and Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T
J
, T
STG
-55 to 150
o
C
Lead Temperature (During Soldering) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T
L
(Distance >0.063in (1.6mm) from Case, 10s Max)
300
o
C
CAUTION: Stresses above those listed in "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
Electrical Specifications
T
C
= 25
o
C, Unless Otherwise Specified
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Drain to Source Breakdown Voltage
BV
DSS
I
D
= 1mA, V
GS
= 0V
500
-
-
V
Gate Threshold Voltage
V
GS(TH)
V
GS
= V
DS
,
I
D
= 1mA
T
C
= -55
o
C
-
-
5.0
V
T
C
= 25
o
C
1.5
-
4.0
V
T
C
= 125
o
C
0.5
-
-
V
Zero Gate Voltage Drain Current
I
DSS
V
DS
= 400V,
V
GS
= 0V
T
C
= 25
o
C
-
-
25
A
T
C
= 125
o
C
-
-
250
A
Gate to Source Leakage Current
I
GSS
V
GS
=
20V
T
C
= 25
o
C
-
-
100
nA
T
C
= 125
o
C
200
nA
Drain to Source On-State Voltage
V
DS(ON)
V
GS
= 12V, I
D
= 9A
5.67
V
Drain to Source On Resistance
r
DS(ON)12
I
D
= 6A,
V
GS
= 12V
T
C
= 25
o
C
-
0.425
0.600
T
C
= 125
o
C
-
-
1.20
Turn-On Delay Time
t
d(ON)
V
DD
= 250V, I
D
= 9A,
R
L
= 27.8
, V
GS
= 12V,
R
GS
= 2.35
-
-
150
ns
Rise Time
t
r
-
-
140
ns
Turn-Off Delay Time
t
d(OFF)
-
-
180
ns
Fall Time
t
f
-
-
70
ns
Total Gate Charge
Q
g(TOT)
V
GS
= 0V to 20V
V
DD
= 250V,
I
D
= 9A
-
-
220
nC
Gate Charge at 12V
Q
g(12)
V
GS
= 0V to 12V
-
110
150
nC
Threshold Gate Charge
Q
g(TH)
V
GS
= 0V to 2V
-
-
8.2
nC
Gate Charge Source
Q
gs
-
21
28
nC
Gate Charge Drain
Q
gd
-
49
62
nC
Plateau Voltage
V
(PLATEAU)
I
D
= 9A, V
DS
= 15V
-
7
-
V
Input Capacitance
C
ISS
V
DS
= 25V, V
GS
= 0V,
f = 1MHz
-
3150
-
pF
Output Capacitance
C
OSS
-
540
-
pF
Reverse Transfer Capacitance
C
RSS
-
150
-
pF
Thermal Resistance Junction to Case
R
JC
-
-
1.00
o
C/W
Thermal Resistance Junction to Ambient
R
JA
-
-
48
o
C/W
FSF450D, FSF450R
3-121
Source to Drain Diode Specifications
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNITS
Forward Voltage
V
SD
I
SD
= 9A
0.6
-
1.8
V
Reverse Recovery Time
t
rr
I
SD
= 9A, dI
SD
/dt = 100A/
s
-
-
810
ns
Electrical Specifications up to 100K RAD
T
C
= 25
o
C, Unless Otherwise Specified
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
MAX
UNITS
Drain to Source Breakdown Volts
(Note 3)
BV
DSS
V
GS
= 0, I
D
= 1mA
500
-
V
Gate to Source Threshold Volts
(Note 3)
V
GS(TH)
V
GS
= V
DS
, I
D
= 1mA
1.5
4.0
V
Gate to Body Leakage
(Notes 2, 3)
I
GSS
V
GS
=
20V, V
DS
= 0V
-
100
nA
Zero Gate Leakage
(Note 3)
I
DSS
V
GS
= 0, V
DS
= 400V
-
25
A
Drain to Source On-State Volts
(Notes 1, 3)
V
DS(ON)
V
GS
= 12V, I
D
= 9A
-
5.67
V
Drain to Source On Resistance
(Notes 1, 3)
r
DS(ON)12
V
GS
= 12V, I
D
= 6A
-
0.600
NOTES:
1. Pulse test, 300
s Max.
2. Absolute value.
3. Insitu Gamma bias must be sampled for both V
GS
= 12V, V
DS
= 0V and V
GS
= 0V, V
DS
= 80% BV
DSS
.
Single Event Effects (SEB, SEGR)
Note 4
TEST
SYMBOL
ENVIRONMENT (NOTE 5)
APPLIED
V
GS
BIAS
(V)
(NOTE 6)
MAXIMUM
V
DS
BIAS
(V)
ION
SPECIES
TYPICAL LET
(MeV/mg/cm)
TYPICAL
RANGE (
)
Single Event Effects Safe Operating
Area
SEESOA
Ni
26
43
-15
500
Ni
26
43
-20
450
Br
37
36
-5
500
Br
37
36
-10
400
Br
37
36
-15
100
NOTES:
4. Testing conducted at Brookhaven National Labs; sponsored by Naval Surface Warfare Center (NSWC), Crane, IN.
5. Fluence = 1E5 ions/cm
2
(typical), T = 25
o
C.
6. Does not exhibit Single Event Burnout (SEB) or Single Event Gate Rupture (SEGR).
Typical Performance Curves
Unless Otherwise Specified
FIGURE 1. SINGLE EVENT EFFECTS SAFE OPERATING AREA
FIGURE 2. DRAIN INDUCTANCE REQUIRED TO LIMIT
GAMMA DOT CURRENT TO I
AS
0
0
-10
-15
-20
-25
-5
V
GS
(V)
V
DS
(V)
LET = 37MeV/mg/cm
2
, RANGE = 36
300
200
100
LET = 26MeV/mg/cm
2
, RANGE = 43
400
500
600
FLUENCE = 1E5 IONS/cm
2
(TYPICAL)
TEMP = 25
o
C
300
100
10
LIMITING INDUCT
ANCE (HENR
Y)
DRAIN SUPPLY (V)
1000
ILM = 10A
300A
1E-4
1E-5
1E-6
30
100A
30A
1E-7
1E-3
FSF450D, FSF450R
3-122
FIGURE 3. MAXIMUM CONTINUOUS DRAIN CURRENT vs
TEMPERATURE
FIGURE 4. FORWARD BIAS SAFE OPERATING AREA
FIGURE 5. BASIC GATE CHARGE WAVEFORM
FIGURE 6. NORMALIZED r
DS(ON)
vs JUNCTION TEMPERATURE
FIGURE 7. NORMALIZED MAXIMUM TRANSIENT THERMAL RESPONSE
Typical Performance Curves
Unless Otherwise Specified (Continued)
I
D
,
DRAIN (A)
T
C
, CASE TEMPERATURE (
o
C)
150
100
50
0
-50
0
10
2
4
6
8
12
V
DS
, DRAIN TO SOURCE VOLTAGE (V)
I
D
,
DRAIN CURRENT (A)
100
10
1
1
10
100
0.1
1000
OPERATION IN THIS
AREA MAY BE
LIMITED BY r
DS(ON)
100
s
1ms
10ms
100ms
T
C
= 25
o
C
CHARGE
Q
GD
Q
G
V
G
Q
GS
12V
2.5
2.0
1.5
1.0
0.5
0.0
-80
-40
0
40
80
120
160
NORMALIZED r
DS(ON)
T
J
, JUNCTION TEMPERATURE (
o
C)
PULSE DURATION = 250
s, V
GS
= 12V, I
D
= 6A
NORMALIZED
10
1
0.1
0.01
10
-5
10
-4
10
-3
10
-2
10
-1
10
0
10
1
t, RECTANGULAR PULSE DURATION (s)
THERMAL RESPONSE (Z
JC
)
0.001
SINGLE PULSE
0.01
0.02
0.05
0.1
0.2
0.5
NOTES:
DUTY FACTOR: D = t
1
/t
2
PEAK T
J
= P
DM
x Z
JC
+ T
C
P
DM
t
1
t
2
FSF450D, FSF450R
3-123
FIGURE 8. UNCLAMPED INDUCTIVE SWITCHING
Test Circuits and Waveforms
FIGURE 9. UNCLAMPED ENERGY TEST CIRCUIT
FIGURE 10. UNCLAMPED ENERGY WAVEFORMS
FIGURE 11. RESISTIVE SWITCHING TEST CIRCUIT
FIGURE 12. RESISTIVE SWITCHING WAVEFORMS
Typical Performance Curves
Unless Otherwise Specified (Continued)
100
10
1
0.01
0.1
1
10
t
AV
, TIME IN AVALANCHE (ms)
I
AS
,
A
V
ALANCHE CURRENT (A)
0.1
t
AV
= (L/R) ln [(I
AS
*R) / (1.3 RATED BV
DSS
- V
DD
) + 1]
IF R
0
t
AV
= (L) (I
AS
) / (1.3 RATED BV
DSS
- V
DD
)
IF R = 0
STARTING T
J
= 25
o
C
STARTING T
J
= 150
o
C
t
P
V
GS
20V
L
+
-
V
DS
V
DD
DUT
VARY t
P
TO OBTAIN
REQUIRED PEAK I
AS
0V
50
50
50V-150V
I
AS
+
-
ELECTRONIC SWITCH OPENS
WHEN I
AS
IS REACHED
CURRENT
TRANSFORMER
V
DD
V
DS
BV
DSS
t
P
I
AS
t
AV
V
DS
DUT
R
GS
0V
V
GS
= 12V
V
DD
R
L
t
d(ON)
t
r
90%
10%
V
DS
90%
10%
t
f
t
d(OFF)
t
OFF
90%
50%
50%
10%
PULSE WIDTH
V
GS
t
ON
FSF450D, FSF450R
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