ART10012T/CK IRF [International Rectifier], ART10012T/CK Datasheet - Page 5

• Manufacturer Part Number: ART10012T/CK
• Description: HYBRID - HIGH RELIABILITY RADIATION HARDENED DC/DC CONVERTER
• Manufacturer: IRF [International Rectifier]

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.
A principal design goal was a converter topology that,
because of large design margins, had radiation performance
essentially independent of normal elemental lot radiation
Standard Periodic Inspections on ART28XXT Series
Radiation Performance
Radiation Specification T
International Rectifier currently does not have a DSCC certified Radiation Hardness Assurance Program.
www.irf.com
As prescribed by MIL-PRF-38534 for Option 2
Total Ionizing Dose
Dose Rate
Heavy Ions
Inspection
Group A
Group B
Group C
Group D
(2:1 Margin)
Temporary Saturation
Survival
(Single event effects)
Test
Part of Screening on Each Unit
Each Inspection Lot
First Inspection Lot or
Following Class 1 Change
In Line (Part of Element Evaluation)
Application
case
MIL-STD-883, Method 1019.4
Operating bias applied during exposure
MIL-STD-883, Method 1021
BNL Dual Van de Graf Generator
= 25°C
Conditions
Quantity
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.
The following table specifies guaranteed minimum radiation
exposure levels tolerated while maintaining specification
limits.
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.
10 Units
5 units
100%
ART28XXT Series
1E11
Min
1E8
200
83
(Si)/sec
cm²/mg
MeV•
Rads
Unit
krad
(Si)
5