Rad-Tolerant Plastic Package ICs

Featured Product from Renesas Electronics Corporation


Renesas' ISL71xxxM radiation-tolerant plastic-package ICs are 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 worldwide. Fleets of hundreds of small satellites will create mega-constellation networks to deliver broadband Internet links from low Earth orbit (LEO) to every corner of the globe.

Renesas' rad-tolerant plastic parts include:

These ICs deliver rad-tolerance performance at a much lower cost point versus radiation assurance tested Class V (space level) products. All three ISL71xxxM devices go through characterization testing.

The ISL71026M rad-tolerant 3.3V CAN transceiver provides serial data transmission at speeds up to 1Mbps. Up to 120 transceivers can be connected to a single CAN bus to reduce cabling/harness SWAP costs for satellite command and telemetry systems.

Key Features and Specifications of ISL71026M

  • Operates at input voltage range from 3V to 3.6V
  • Quiescent supply current: 7mA (max), Listen mode supply current: 2mA (max)
  • Compliant with ISO 11898-2 physical layer standard
  • Bus fault protection up to ±20V, and loopback/listen mode
  • Cold spare capability: powered down devices/nodes without affecting active devices operating in parallel
  • Characterized radiation-tolerant to 30krad(Si) and SEE at LET = 43MeV•cm²/mg

The ISL71444M rad-tolerant quad RRIO op amp provides low power, low offset voltage, and excellent output noise performance. Its SET recovery of <5µs eliminates external filtering.

Key Features and Specifications of ISL71444M

  • Wide single and dual supply range from 2.7V to 40V
  • Wide gain bandwidth (GBW) product of 19MHz
  • Very low input offset voltage of 300µV
  • Low current consumption per amplifier of 1.1mA typical, and high slew rate of 60V/µs
  • Characterized radiation-tolerant to 30krad(Si) and SEE at LET = 43MeV•cm²/mg

The ISL71001M rad-tolerant 6A sync buck regulator with integrated MOSFETs delivers high peak efficiency up to 95%, and steps down 5V and 3.3V primary rails to POL inputs as low as 0.8V for FPGAs, CPLDs, DSPs, CPUs and peripheral I/Os.

Key Features and Specifications of ISL71001M

  • Operates at input voltage range from 3V to 5.5V
  • Tightly regulated output voltage externally adjustable from 0.8V to 85% of Vin
  • Fixed 1MHz switching frequency for reduced filter size
  • ±1.2% referenced voltage, and compensation free
  • Bidirectional SYNC pin synchronizes two devices 180° out of phase
  • Provides adjustable output voltage, analog soft-start, input/output undervoltage, overcurrent protection, and power-good output voltage monitor
  • Characterized radiation-tolerant to 30krad(Si) and SEE at LET = 43MeV•cm²/mg

Renesas' rad-tolerant plastic packaging flow leverages the company's more than 50 years of spaceflight experience developing rad hard (>75krad) and rad-tolerant (<75krad) products for extremely harsh environments. The upfront radiation effects characterization and AEC-Q100 automotive-like qualification gives customers the utmost confidence to design Renesas radiation-tolerant plastic parts into cost-sensitive small satellites for LEO mission profiles up to five-years. The ISL71xxxM are also well suited for high altitude (>40km) avionic systems, launch vehicles that are prone to heavy ions, and medical equipment where radiation is a concern.