The Low-Earth Orbit (LEO) market is experiencing significant expansion as both corporate and public entities actively investigate this emerging space domain for a wide range of purposes, including 5G communication, cube satellites, and IoT applications. There is a growing need for space-grade technologies that meet high standards of reliability, cost-effectiveness, and configurability. Microchip Technology has introduced a new range of Radiation-Tolerant (RT) LE50-28 isolated DC-DC 50W power converters. These converters are available in nine different versions, including both single- and triple-outputs with voltage options ranging from 3.3V to 28V.
The LE50-28 family of power converters, which are readily available for purchase, have been specifically engineered to comply with the MIL-STD-461 standard. The power converters are equipped with an accompanying EMI filter and provide customers with the convenience of designing and customizing by selecting either one or three outputs, depending on the required voltage range for the final application. This series has the capability to connect up to four power converters in parallel, resulting in a total power output of 200 Watts.
The LE50-28 isolated DC-DC power converters are specifically engineered to operate with 28V bus systems. They may be seamlessly incorporated with Microchip’s PolarFire® FPGAs, microcontrollers, and LX7720-RT motor control sensor to create a comprehensive electrical system solution. Designers can utilize these power solutions, which are highly reliable and tolerant to radiation, to effectively decrease the time required for system-level development.
The LE50-28 power converters provide a range of electrical connection and mounting choices. The LE50 series is produced using traditional surface mount and through-hole components on a printed circuit board. This differentiation in the production procedure might decrease the time required to bring a product to market and mitigate the potential hazards linked to disruptions in the supply chain.
The LE50-28 family provides radiation resistance suitable for space applications, with a Total Ionizing Dose (TID) of 50 Krad and immunity to Single Event Effects (SEE) latch-up at a linear energy transfer of 37 MeV·cm2/mg.
Microchip provides a diverse selection of components to facilitate the advancement of space technology. They employ a sub-QML technique to connect the gap between traditional Qualified Manufacturers List (QML) components and Commercial-Off-The-Shelf (COTS) components. Sub-QML components are specifically created for use in novel space applications. These components offer the best option by combining the radiation tolerance of QML components with our space flight experience. This allows for reduced screening requirements, resulting in cheaper costs and faster lead times.
Microchip offers a wide range of space solutions, including FPGAs, power and discrete devices, memory products, communication interfaces, oscillators, microprocessors (MPUs), and MCUs. These alternatives are available at various qualification levels and include the biggest selection of approved plastic products for space applications.
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