ISL706AEH

Radiation Hardened, 3.3V µ-Processor Supervisory Circuits

Product Status: Mass Production

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 .
• An active-low, manual-reset input.

KEY FEATURES

  • Electrically screened to SMD 5962-11213
  • QML qualified per MIL-PRF-38535 requirements
  • Radiation hardness
  • High dose rate (EH and RH): 100krad(Si)
  • Low dose rate (EH only): 100krad(Si) (*)
  • SEL/SEB LETTH: 86MeV•cm2/mg

    *Product capability established by initial characterization. The EH version is acceptance tested on a wafer-by-wafer basis to 50krad(Si) at low dose rate.
  • Precision supply voltage monitor
  • 4.65V threshold in the ISL705AxH/BxH/CxH
  • 3.08V threshold in the ISL706AxH/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
  • 1.25V threshold in the ISL705AxH/BxH/CxH
  • 0.6V threshold in the ISL706AxH/BxH/CxH
  • Debounced TTL/CMOS compatible manual-reset input
  • Reset output valid at VDD = 1.2V

PARAMETRICS

Parameters
ISL706AEH
Basic Information
Production Status
Mass Production
Class
V, /PROTO
DLA SMD
11213
High Dose Rate (HDR) krad (Si)
100
Low Dose Rate (ELDRS) krad (Si)
100
SEL (MeV/mg/cm2)
86
SMD URL
Qualification Level
QML Class V (space)
Temperature Range
-55 to +125

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