Space & Harsh Environment

Overview

The devices in this family are radiation hardened 5.0V/3.3V supervisory circuits that reduce the complexity required to monitor supply voltages in microprocessor systems. These devices significantly improve accuracy and reliability relative to discrete solutions. Each IC provides four key functions: A reset output during power-up, power-down and brownout conditions, an independent watchdog output that goes low if the watchdog input has not been toggled within 1.6s, a precision threshold detector for monitoring a power supply other than VDD, and an active-low, manual-reset input.

  • Electrically screened to SMD 5962-11213
  • QML qualified per MIL-PRF-38535 requirements
  • Radiation acceptance testing - ISL705xRH, ISL706xRH
    • High dose rate: 100krad(Si)
  • SEE hardness (see SEE report for details)
    • SEL/SEB LETTH: 86MeV•cm2/mg
  • Precision supply voltage monitor
    • 3.08V threshold in the ISL7x6AxH/BxH/CxH
  • 200ms (typical) reset pulse width
    • Active high, active low, and open-drain options
  • Independent watchdog timer with 1.6s (typical) timeout
  • Precision threshold detector
    • 0.6V threshold in the ISL7x6AxH/BxH/CxH
  • Debounced TTL/CMOS compatible manual-reset input
  • Reset output valid at VDD = 1.2V
  • Supervisor for microprocessors, microcontrollers, FPGAs, and DSPs
  • Critical power supply monitoring
  • Reliable replacement of discrete solutions

Documentation

Design & Development

Boards & Kits

Models

Title Type Date
ZIP726 KB
Model - Other