ART2815T/CK(2006) 데이터 시트보기 (PDF) - International Rectifier

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ART2815T/CK
(Rev.:2006)

HYBRID - HIGH RELIABILITY RADIATION HARDENED DC/DC CONVERTER

International Rectifier 

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, The following table specifies guaranteed minimum radiation

because of large design margins, had radiation performance exposure levels tolerated while maintaining specification

essentially independent of normal elemental lot radiation limits.

Radiation Specification Tcase = 25°C

Test

Conditions

Min

Unit

Total Ionizing Dose

(2:1 Margin)

MIL-STD-883, Method 1019.4

Operating bias applied during exposure

200

krad

(Si)

Dose Rate

Temporary Saturation

Survival

MIL-STD-883, Method 1021

1E8

1E11

Rads

(Si)/sec

Heavy Ions

(Single event effects)

BNL Dual Van de Graf Generator

83

MeV•

cm²/mg

International Rectifier currently does not have a DSCC certified Radiation Hardness Assurance Program.

Standard Periodic Inspections on ART28XXT Series

As prescribed by MIL-PRF-38534 for Option 2

Inspection

Group A

Group B

Group C

Group D

Application

Part of Screening on Each Unit

Each Inspection Lot

First Inspection Lot or

Following Class 1 Change

In Line (Part of Element Evaluation)

Quantity

100%

5 units

10 Units

www.irf.com

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