Microsemi Corp.'s Radiation Hardened Isolated DC/DC Converters (SA50-28)
The SA50-28 is a family of radiation-hardened, surface mount technology packaged 28V input, 50W output DC-DC converters. Naturally occurring radiation in the environment can have a catastrophic impact on electronics used in military/commercial satellites. The high-reliability SA50-28 single, dual, and triple output converters continuously protect against this “total dose” ionized radiation. The space-qualified SA50-28 series was developed in response to customer requests for a high reliability alternative to hybrid solutions, and less robust competitive products that were causing design issues and schedule delays. This product series delivers simple and standardized SMT construction that aligns with typical satellite load requirements while providing significantly less risk than competing products. In addition to improving quality by leveraging automated and repeatable surface mount technology processes, the SA50-28 series allows designers to maximize board real estate resulting in a similar package and weight density to hybrid alternatives. The DC-DC converters feature a fully isolated power supply capable of driving high-reliability point-of-load converters used to “step down” power to devices such as customizable system-on-chip solutions and FPGAs. Additional features include a fully isolated synchronization scheme to manage system noise spectra.