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PDF ART28XXT Data sheet ( Hoja de datos )
| Número de pieza | ART28XXT | |
| Descripción | HYBRID - HIGH RELIABILITY RADIATION HARDENED DC-DC CONVERTER | |
| Fabricantes | IRF | |
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PD-94529G
HYBRID - HIGH RELIABILITY
RADIATION HARDENED
DC-DC CONVERTER
ART28XXT SERIES
28V Input, Triple Output
Description
The ART Series of three output DC-DC converters are
designed specifically for use in the hostile radiation
environments characteristic of space and weapon
systems. The extremely high level of radiation tolerance
inherent in the ART design is the culmination of
extensive research, thorough analysis and testing and
of careful component selection. Many of the proven
circuit design features characterizing the International
Rectifier standard product line were adapted for
incorporation into the ART topology. Capable of
uniformly high performance over long term exposures
in radiation intense environments, this series sets the
standard for distributed power systems demanding high
performance and reliability.
The ART converters are hermetically sealed in a
rugged, low profile package utilizing copper core pins
to minimize resistive DC losses. Long-term hermeticity
is assured through use of parallel seam welded lid
attachment along with International Rectifier’s rugged
ceramic pin-to-package seal. Axial orientation of the
leads facilitates preferred bulkhead mounting to the
principal heat-dissipating surface.
Manufactured in a facility fully qualified to MIL-PRF-38534,
these converters are fabricated utilizing DLA qualified
processes. For available screening options, refer to
device screening table in the data sheet.
ART
Features
n Total Dose > 100 krad (Si), 2:1margin
n SEE Hardened to LET up to 83 Mev.cm2/mg
n Output Power Range 3 to 30 Watts
n 19 to 50 Volt Input Range
n Input Undervoltage Lockout
n High Electrical Efficiency > 83%
n Full Performance from -55°C to +125°C
n Continuous Short Circuit and Overload
Protection
n 12.8 W/in3 Output Power Density
n True Hermetic Package
n External Inhibit Port
n Externally Synchronizable
n Fault Tolerant Design
n 5V, ±12V or ±15 V Outputs Available
n Standard Microcircuit Drawings Available
Variations in electrical, mechanical and screening
specifications can be accommodated. Contact IR San
Jose for special requirements.
www.irf.com
1
08/15/12
http://www.Datasheet4U.com
1 page  
ART28XXT SERIES
Radiation Performance
The radiation tolerance characteristics inherent in the
ART28XXT converter are the direct result of a carefully
planned ground-up design program with specific radiation
design goals. After identification of the general circuit
topology, a primary task of the design effort was selection
of appropriate elements from the list of devices for which
extensive radiation effects data was available. By imposing
sufficiently large margins on those electrical parameters
subject to the degrading effects of radiation, designers
were able to select appropriate elements for incorporation
into the circuit. Known radiation data was utilized for input
to PSPICE and RadSPICE in the generation of circuit
performance verification analyses. Thus, electrical
performance capability under all environmental conditions
including radiation was well understood before first
application of power to the inputs.
performance variations. In the few instances where such
margins were not assured, element lots were selected
from which die were fabricated (and characterized) as
radiation hard devices so that realization of the design
goals could be assured.
Completion of first article fabrication, screening and
standard environmental testing was followed by radiation
testing to confirm design goals. All design goals were met
handily and in most cases exceeded by large margin.
These test samples were built with elements that, with the
foregoing exceptions, were not screened for radiation
characteristics. Additional radiation tests on subsequent
ART28XXT manufacturing lots provide continued
confirmation of the soundness of the design goals as well
as justification for the element selection criteria.
A principal design goal was a converter topology that,
because of large design margins, had radiation performance
essentially independent of normal elemental lot radiation
Radiation Performance Characteristics
The following table specifies guaranteed minimum radiation
exposure levels tolerated while maintaining specification
limits.
Test Inspection
Method
Min Typ
Unit
MIL-PRF-883, Method 1019
Total Ionizing Dose (Gamma) Operating bias applied during exposure,
Full Rated Load, VIN = 28V
Dose Rate (Gamma Dot)
MIL-STD-883, Method 1023
Temporary Saturation Operating bias applied during exposure,
Survival
Full Rated Load, VIN = 28V
Neutron Fluence
MIL-STD-883, Method 1017
Heavy Ions (LET)
Single Event Effects
Operating bias applied during exposure,
SEU, SEL, SEGR, SEB
Full Rated Load, VIN = 28V
Test lab: Brookhaven National Laboratory,
Tandem Van de Graaff Generator
200
1E8
4E10
8E12
83
300 Krads(Si)
1E11
1E13
Rads(Si)/sec
Neutrons/cm2
MeVxcm2/mg
International Rectifier currently does not have a DLA Land and Maritime certified Radiation Hardness
Assurance Program.
Standard Periodic Inspections on ART28XXT Series
As prescribed by MIL-PRF-38534 for Option 2
Inspection
Application
Group A
Part of Screening on Each Unit
Group B
Each Inspection Lot
Group C
First Inspection Lot or
Following Class 1 Change
Group D
In Line (Part of Element Evaluation)
www.irf.com
Quantity
100%
5 units
10 Units
5
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5 Page 
Mechanical Outline
Ø 0.136 - 6 Holes
ART28XXT SERIES
1.675 2.200
6 x 0.200
= 1.200
0.040
Pin Dia.
1.950
0.263
0.300
0.375
0.150
1.400
2.400
2.700
0.138
0.275
0.240
Mounting
Plane
0.500
Max
3.25 Ref.
Max
0.050
Flange
www.irf.com
Note:
1. Dimensions are in inches.
2. Base Plate Mounting Plane Flatness 0.003 maximum.
3. Unless otherwise specified, tolerances are
∠ = ± 2°
.XX = ± .01
.XXX = ± .005
4. Device Weight - 120 grams maximum.
Pin #
1
2
3
4
5
8
Pin Designation
Designation
Pin #
Designation
+ Input
Input Return
Enable
Sync. In
Sync. Out
NC
9 -12/-15 Vdc Output
10 +12/+15 Vdc Output Return
11 +12/+15 Vdc Output
12 Case Ground
13 +5 Vdc Output
14 +5 Vdc Output Return
Standard Microcircuit Drawing Equivalence Table
Standard Microcircuit
Drawing Number
5962-04234
5962-04237
IR Standard
Part Number
ART2815T
ART2812T
11
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| PDF Descargar | [ Datasheet ART28XXT.PDF ] | |
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