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5962R1121312VXC Datasheet(PDF) 1 Page - Intersil Corporation |
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5962R1121312VXC Datasheet(HTML) 1 Page - Intersil Corporation |
1 / 19 page 1 Rad-Hard, 5.0V/3.3V µ-Processor Supervisory Circuits ISL705AEH, ISL705BEH, ISL705CEH, ISL706AEH, ISL706BEH, ISL706CEH This family of devices 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. 1. A reset output during power-up, power-down, and brownout conditions. 2. An independent watchdog output that goes low if the watchdog input has not been toggled within 1.6s. 3. A precision threshold detector for monitoring a power supply other than VDD. 4. An active-low manual-reset input. Specifications for Rad Hard QML devices are controlled by the Defense Logistics Agency Land and Maritime (DLA). The SMD numbers listed in the “Ordering Information” table on page 3 must be used when ordering. Detailed Electrical Specifications for the ISL705AEH, ISL705BEH, ISL705CEH, ISL706AEH, ISL706BEH and ISL706CEH are contained in SMD 5962-11213. A “hot-link” is also provided on our website for downloading. Applications • Supervisor for µ-Processors, µ-Controllers, FPGAs and DSPs • Critical Power Supply Monitoring • Reliable Replacement of Discrete Solutions Features • Electrically Screened to SMD 5962-11213 • QML Qualified per MIL-PRF-38535 Requirements •Radiation Hardness - High Dose Rate. . . . . . . . . . . . . . . . . . . . . . . . . . 100krad(Si) - Low Dose Rate . . . . . . . . . . . . . . . . . . . 100krad(Si) (Note 1) - SEL/SEB LETTH. . . . . . . . . . . . . . . . . . . . 86MeV * cm2/mg • Precision Supply Voltage Monitor - 4.65V Threshold in the ISL705AEH/BEH/CEH - 3.08V Threshold in the ISL706AEH/BEH/CEH • 200ms (Typ) Reset Pulse Width - Active High, Active Low and Open Drain Options • Independent Watchdog Timer with 1.6s (Typ) Timeout • Precision Threshold Detector - 1.25V Threshold in the ISL705AEH/BEH/CEH - 0.6V Threshold in the ISL706AEH/BEH/CEH • Debounced TTL/CMOS Compatible Manual-Reset Input • Reset Output Valid at VDD = 1.2V Related Literature • AN1650, “ISL705XRH Evaluation Board User’s Guide” • AN1671, “ISL706xRH Evaluation Board User’s Guide” • AN1651, “Single Event Effects (SEE) Testing of the ISL705xRH/EH and ISL706xRH/EH Rad Hard Supervisory Circuits” NOTE: 1. 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. 1 2 3 4 8 7 6 5 MR VDD GND PFI WDO RST WDI PFO µP 165k 49.9k ISL705AEH 5V SUPERVISOR APPLICATION WITH OVERVOLTAGE PROTECTION NMI RST I/O VCC 5V POWER SUPPLY FIGURE 1. TYPICAL APPLICATION 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 0 25 50 75 100 125 150 FIGURE 2. PRECISION THRESHOLD DETECTOR LOW DOSE IONIZING CHARACTERISTIC CURVE krad (Si) ISL705xEH ISL706xEH March 30, 2012 FN8262.0 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 |Copyright Intersil Americas Inc. 2012. All Rights Reserved Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners. |
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