Space & Harsh Environment

Renesas' plastic-packaged, radiation tolerant PWM controllers are used for DC/DC power supplies in small satellites (smallsats) and launch vehicles. These controllers provide fast signal propagation and output switching in a small plastic package, reducing PCB area up to 3x compared to competitive ceramic packages. It reduces power loss more than 3x, and its adjustable operating frequency enables higher efficiency and the use of smaller passive filter components.

Product Selection Table

    Processing table
    Topology [Rail 1]
    Topology Characteristic
    Control Mode
    UVLO Rising (V)
    UVLO Falling (V)
    VBIAS (Max) (V)
    No-Load Operating Current
    PWMs (#)
    FET Driver Output Current (Max) (A)
    Duty Cycle (%)
    Low Dose Rate (LDR) (krad (Si))
    DSEE (SEL, SEB, etc.) (MeV*cm2/mg)
    Lead Count (#)
    Pkg. Type
    Part Number
    ISL71041M
    Radiation Tolerant Single-Ended Current Mode PWM Controller    		 Single-Ended Flyback Peak Current Mode 8.4 7.6 30 2.9 mA 1 1 100 30 43 8 TDFN
    ISL71043M
    Radiation Tolerant Single-Ended Current Mode PWM Controller    		 & Boost, Forward, Single-Ended Flyback Peak Current Mode 8.4 7.6 30 2.9 mA 1 1 100 30 43 8 SOICN, TDFN
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    Documentation

    Title
    		Type Date
    AN9867: End of Life Derating: A Necessity or Overkill
    PDF 338 KB     		Application Note
    Intersil Space Products Brochure
    PDF 4.85 MB     		Brochure
    Taking Advantage of GaN in Small Satellite “New Space” Applications
    PDF 470 KB 日本語     		White Paper
    Powering Small Satellite Constellations with Plastic ICs
    PDF 405 KB     		White Paper
    4 items

    Downloads

    Title
    		Type Date
    iSim:PE Software v8.50
    EXE 138.65 MB     		Software & Tools - Software
    1 item
    Radiation-Tolerant Plastic-Package ICs Overview

    Learn about Intersil's family of radiation-tolerant plastic-package ICs designed to support the emerging field of small satellites that will provide solutions such as high-speed Internet connections to hundreds of millions of users in communities, governments, and businesses worldwide. These ICs deliver rad-tolerance performance at a much lower cost point versus radiation assurance tested Class V (space level) products.

    Video List
    Radiation-Tolerant Plastic-Package ICs Overview

    Tools & Resources

    Space & Harsh Environment FAQs