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參數(shù)資料
| 型號(hào)： | ARH2805.2S/SF |
| 元件分類： | 電源模塊 |
| 英文描述： | 1-OUTPUT 30 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | LOW PROFILE, HERMETIC SEALED, RUGGED PACKAGE-12 |
| 文件頁(yè)數(shù)： | 9/12頁(yè) |
| 文件大?。?/td> | 118K |
| 代理商： | ARH2805.2S/SF |
6
RADIATION PERFORMANCE
The radiation tolerance characteristics inherent in
the ARH2800S converters result from a carefully
planned ground-up design program with specific
radiation design goals.
After identification of the
general circuit topology, a fundamental task in 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. Existing 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.
A principal design goal was a converter topology
that, because of large design margins, had radiation
performance essentially independent of normal
element-lot radiation performance variations. In any
instance where such margins cannot be assured,
element
lots
are
selected
following
RLAT
characterization as radiation hard devices so that
realization of the design goals can be maintained.
The following table specifies guaranteed minimum
radiation exposure levels tolerated while maintaining
specification limits.
Radiation Specification
Tcase = 25°C
Test
Conditions
Min
Typ
Max
Unit
Total Ionizing Dose
(2:1 Margin)
MIL-STD-883, Method 1019.4
Operating bias applied during exposure
100
500
Krads
(Si)
Dose Rate
Temporary Saturation
Survival
MIL-STD-883, Method 1021
1E8
1E11
Rads
(Si)/sec
Neutron Fluence
MIL-STD-883, Method 1017.2
3E12
Neutron
/cm
Heavy Ions
(Single event effects)
BNL Dual Van de Graf Generator
83
MeV
cm/mg
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