Radiation-tolerant power converters for satellites and other space applications introduced by Micross

Summary points:

• The AFLS28XX series DC-DC converters offer 50 kRad (Si) TID and 60 MeV·cm²/mg SEE tolerance, making them ideal for LEO satellites, New Space missions, and launch vehicles.
• Derived from the AFL series used in PAC-3 and Patriot Missile systems, the AFLS series meets MIL-PRF-38534 Class H screening and undergoes PIND and radiography testing.
• Hermetically packaged with single or dual outputs (5–28 V), the converters feature high power density, reduced size/weight/power, and support parallel operation with internal current sharing.

MELVILLE, N.Y. – Micross Components Inc. in Melville, N.Y. is introducing the Class H+ AFLS28XX series radiation-tolerant power converters for low-Earth-orbit (LEO) satellite constellations, New Space missions, launch vehicles, and other space-based systems.

The AFLS series of 28-volt 120-Watt Class H+ DC-DC power converters offer updated technology and design enhancements, meet MIL-PRF-38534 Class H screening requirements, and include additional tests such as PIND and radiography to support reliability in LEO and new space environments.

The AFLS series offers radiation specifications of 50kRad (Si) TID and 60MeV·cm²/mg SEE.

Space missions

Derived from the AFL series, which has a proven track record in defense applications such as PAC-3 and Patriot Missile systems, the AFLS series offers a tailored solution for space missions requiring radiation tolerance at a lower cost than traditional space-grade qualified power supplies.

The converters are hermetically packaged and available in single and dual output voltage configurations ranging from 5 to 28 volts.

Key features include reduced size, weight, and power through elimination of shielding requirements and lower power consumption; proprietary magnetic pulse feedback for optimized dynamic line and load regulation; high power density with no de-rating across the full operating temperature range; parallel operation for outputs above 120 Watts, with synchronization capability to a system clock in the 525 khz range; internal current sharing for balanced load distribution; and enhanced reliability and obsolescence mitigation through vertically integrated sourcing.

For more information contact Micross Components online at www.micross.com/power/dc-dc-power-converters/hybrids/space-products?pkg=AFLS.