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ARH2802R5SCK Datasheet(PDF) 10 Page - International Rectifier |
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ARH2802R5SCK Datasheet(HTML) 10 Page - International Rectifier |
10 / 12 page 10 www.irf.com ARH28XXS Series 28V Input, Single Output Radiation Performance The radiation tolerance characteristics inherent in the ARH28XXS converters are a result of a carefully planned ground-up design program with specific radiation design goals. Identification of the general circuit topology, a fundamental task in the design effort, was followed by selection of appropriate elements from a list of devices for which extensive radiation effects data was available. By imposing sufficiently large margins on those electrical parameters showing the worst case 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. The following table specifies guaranteed minimum radiation exposure levels tolerated while maintaining specification limits. A principal design goal was achieving a converter topology that, because of large design margins, had radiation performance essentially independent of radiation induced element-lot performance variations. Where such margins cannot be assured, element lots are either selected following RLAT characterization as radiation hard devices or, purchased as radiation hard devices so that realization of the design goals are maintained. . Radiation Specification Tcase = 25°C International Rectifier currently does not have a DLA Land and Maritime certified Radiation Hardness Assurance Program. * Group B quantity for option 2 End of Line QCI. No Group B samples required for Option 1, In-line. Standard Quality Conformance Inspections on ARH28XXS Series (Filght Screened) Inspection Application Samples Group A Part of screening on each unit 100% Group B Each inspection lot * 5 units Group C First inspection lot or following Class 1 change 10 units Group D In line (Part of element evaluation) 3 units Test Conditions Min Typ Unit MIL-STD-883, Method 1019.4 Total Ionizing Dose (2.:1 Margin) Operating bias applied during exposure 100 Krads(Si) Dose Rate MIL-STD-883, Method 1021 Temporary Saturation 1E8 Rads(Si)/sec Survival 1E11 Heavy Ions BNL Dual Van de Graf Generator (Single Event Effects) 83 MeVxcm 2/mg |
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