Infineon IR Hirel

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Infineon IR Hirel

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Space and other harsh environment applications pose unique challenges for system designers. Electronics must be able to withstand severe thermal, mechanical, and radiation conditions with expected lifespans measured in decades.

Infineon’s industry-leading electronics portfolio for space includes high reliability and rad hard memory, RF, rad hard power management and power distribution (PMAD) solutions.

IR Hirel, an Infineon company, has a long history serving the space flight industry with high-reliability, radiation hardened power management solutions. Since 1985, customers have relied on IR HiRel solutions for mission-critical power management in thousands of space, aerospace and national security programs, ranging from space exploration vehicles to launchers and satellites. Many of these programs are still in flight today.

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Radiation hardened power

Rad hard MOSFETs

Customers benefit from IR Hirel / Infineon’s unparalleled expertise in power MOSFET radiation requirements. Its products and solutions are engineered for optimal performance and longevity in extreme environmental conditions, including exposure to severe ionizing radiation in space. Together, Infineon and IR HiRel offer the broadest portfolio of space power MOSFETs for applications in geosynchronous and geostationary orbit (GEO), Medium Earth Orbit (MEO) and Low Earth Orbit (LEO).

Infineon IR HiRel’s rad hard N- and P-channel R9 MOSFETs are engineered for mission-critical applications requiring an operating life up to and beyond 15 years, such as:

  • Space-grade DC-DC converters
  • Intermediate bus converters
  • Motor controllers
  • Other high-speed switching designs
  • High-side, low frequency load switching
  • Overload protection switching

Rad hard GaN

Infineon IR HiRel’s rad hard GaN transistors deliver top efficiency, power density, and switching frequencies. With DLA qualification, our GaN FETs enable designers to create smaller, lighter, and more reliable power management and distribution systems for high performance space applications.

Schottkys and rectifiers

Schottky diodes

Designed to meet stringent requirements of high-reliability applications, Infineon’s IR HiRel-branded power Schottkys are lightweight and offered in hermetically sealed packages. Forward voltage drop and reverse leakage current are optimized to minimize power loss and deliver the highest circuit efficiency for typical high frequency switching power supplies and resonant power converters

Ultrafast rectifiers

Infineon’s IR HiRel-branded soft-recovery ultrafast rectifiers are optimized to reduce losses and EMI/RFI in high-frequency power conditioning systems. An extensive characterization of the recovery behavior for different values of current, temperature, and di/dt simplifies the calculations of losses in the operating conditions. In most applications, the softness of the recovery eliminates the need for a snubber.

Rad hard solid-state relays

Infineon’s IR HiRel-branded radiation hardened (rad hard) solid-state relay (SSR) portfolio includes single, dual, and octal devices in hermetically sealed packages and tested up to 100 krads(Si) total ionizing dose (TID). The family includes optically coupled, buffered and non-buffered solid-state relays processed to MIL-PRF-38534 Class K, using Infineon’s industry-leading Rad Hard MOSFETs for highest reliability.

Infineon’s IR HiRel-branded SSRs are suitable for high-reliability applications such as: 

  • Solar array management
  • Heater controls
  • Bus switching
  • Ground power isolation
  • Generic load switchingRad hard power ICs

Rad hard power ICs

Infineon’s IR HiRel-branded rad hard power IC solutions are engineered to complement our industry-leading rad hard MOSFETs. The rad hard high-side and low-side MOSFET gate drivers are rated at 100 krad(Si) for total ionizing dose (TID) and have been characterized for single event effects (SEE). IR HiRel space-grade gate drivers increase power system reliability and reduce solution size and weight.

High- and low-side drivers

Rad hard high voltage, high speed power MOSFET and IGBT drivers rated at 100 krad TID with available gate drive supply range up to 20 V.

Low-side driver

Rad hard high speed, dual channel low-side gate driver specifically designed for high performance in demanding space environments

Buck controller

Rad hard synchronous buck controller with integrated gate drivers intended for use in harsh radiation environments.

Potential applications for Infineon’s IR HiRel-branded radiation hardened ICs include: 

  • Satellite bus and payload
  • Power conditioning unit
  • Power distribution unit
  • Motor drive

Space Memory Portfolio

Infineon offers a comprehensive portfolio of volatile and non-volatile memories designed to withstand the harsh environment and long lifecycle demand of space applications. Its space memories enhance system computing limits while providing Size, Weight, and Power (SWaP) benefits and greater design flexibility.

  • Rad tol, non-volatile NOR flash:  Low pin- count, high performance, industry-standard QSPI and dual QSPI interfaces for easy adoption and use
  • Rad hard, non-volatile NOR flash: Highest performance, density, radiation, and single event effects (SEE) performance for space FPGA boot code and configuration image storage solutions for satellites
  • Rad hard, non-volatile, ferroelectric-RAM (F-RAM):  Virtually infinite endurance, SEU immune with >100 year data retention making it one of the highest reliability memories for space