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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 | International Rectifier | |
| Logotipo |  |
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PD-94529B
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 specification. Many of the best
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,
class K, these converters are fabricated utilizing DSCC
qualified processes and are fully compliant to Class K.
The complete suite of PI tests has been completed
including Group C life test. Variations in electrical,
mechanical and screening specifications can be
accommodated. Contact IR Santa Clara for special
requirements.
ART
Features
n Total Dose > 100 krad (Si), 2:1margin
n No SEE to LET > 83 Mev.cm2 /mg
n Derated per MIL-STD-975 & MIL-STD-1547
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
www.irf.com
1
08/12/04
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
The following table specifies guaranteed minimum radiation
exposure levels tolerated while maintaining specification
limits.
Radiation Specification Tcase = 25°C
Test
Conditions
Total Ionizing Dose
(2:1 Margin)
MIL-STD-883, Method 1019.4
Operating bias applied during exposure
Dose Rate
Temporary Saturation
Survival
MIL-STD-883, Method 1021
Heavy Ions
(Single event effects)
BNL Dual Van de Graf Generator
Min Unit
200 krad
(Si)
1E8
1E11
83
Rads
(Si)/sec
MeV•
cm²/mg
www.irf.com
5
5 Page 
ART28XXT Case 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
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 Designation
Pin #
1
2
3
4
5
8
9
10
11
12
13
14
Designation
+ V input
Input return
Enable
Sync In
Sync Out
No connection
- 15 Vdc output
15 Vdc output return
+ 15 Vdc output
Chassis
+ 5 Vdc output
5 Vdc output return
Part Numbering
ART 28 15 T / EM
Model
Input Voltage
28 = 28V
100 = 100V
Output Voltages
15 = 5V, ± 15V
12 = 5V, ± 12V
Screening Level
No Suffix = Flight
/EM = Engineering
Outputs
T = Triple
Note:
Radiation performance not specified for /EM screened device type.
www.irf.com
11
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet ART28XXT.PDF ] | |
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