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.

ISL705xxH_ISL706xxH Functional Diagram
ISL705xxH_ISL706xxH Functional Diagram
  • Electrically screened to SMD 5962-11213
  • QML qualified per MIL-PRF-38535 requirements
  • TID Rad Hard Assurance (RHA) testing
    • High dose rate (50rad(Si)/s - 300rad(Si)/s): 100krad(Si)
  • SEE hardness (see SEE report for details)
    • No DSEE for VDD = 6.5V and 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

Applications

  • Supervisor for microprocessors, microcontrollers, FPGAs, and DSPs
  • Critical power supply monitoring
  • Reliable replacement of discrete solutions

Documentation

Design & Development

ISL706xRHEVAL1Z Evaluation Board

ISL706xRHEVAL1Z

Evaluation
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Radiation Hardened, 3.3V Microprocessor Supervisory Circuits Evaluation Board

The ISL706xRHEVAL1Z evaluation board is a design platform featuring all three versions of the rad hard 3.3V supervisory circuits, ISL706ARH, ISL706BRH and ISL706CRH. It...

Featured Documents:
ISL706xRHEVAL1Z User Guide

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

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Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Carrier Type
    MOQ
    DLA SMD
    Buy / Sample
    Part Number
    ISL706BRHF/PROTO
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    		CFP Tray 1
    ISL706BRHQF
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    		CFP Tray 25 5962R1121305QXC
    ISL706BRHVF
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    view_in_ar
    		CFP Tray 25 5962R1121305VXC
    ISL706BRHVX
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    view_in_ar
    		DIE 100 5962R1121305V9A
    ISL706BRHX/SAMPLE
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    view_in_ar
    		DIE 5
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