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ISL706BRHVX Datasheet(PDF) 1 Page - Intersil Corporation |
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ISL706BRHVX Datasheet(HTML) 1 Page - Intersil Corporation |
1 / 15 page 1 Rad-Hard, 5.0V/3.3V µ-Processor Supervisory Circuits ISL705ARH, ISL705BRH, ISL705CRH, ISL706ARH, ISL706BRH, ISL706CRH 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 Supply Center in Columbus (DSCC). The SMD numbers listed in the “Ordering Information” table on page 3 must be used when ordering. Detailed Electrical Specifications for the ISL705ARH, ISL705BRH, ISL705CRH, ISL706ARH, ISL706BRH and ISL706CRH are contained in SMD 5962-11213. A “hot-link” is 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) - SEL/SEB LETTH. . . . . . . . . . . . . . . . . . . . . . 86MeV/mg/cm2 • Precision Supply Voltage Monitor - 4.65V Threshold in the ISL705ARH/BRH/CRH - 3.08V Threshold in the ISL706ARH/BRH/CRH • 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 ISL705ARH/BRH/CRH - 0.6V Threshold in the ISL706ARH/BRH/CRH • Debounced TTL/CMOS Compatible Manual-Reset Input • Reset Output Valid at VDD = 1.2V Related Literature • ISL705RH Voltage Supervisory Circuit Evaluation Board User’s Guide • ISL706RH Voltage Supervisory Circuit Evaluation Board User’s Guide FIGURE 1. TYPICAL APPLICATION 1 2 3 4 8 7 6 5 MR VDD GND PFI WDO RST WDI PFO µP 165k 49.9k ISL705ARH 5V SUPERVISOR APPLICATION WITH OVERVOLTAGE PROTECTION NMI RST I/O VCC 5V POWER SUPPLY FIGURE 2. PRECISION THRESHOLD DETECTOR TEMPERATURE CHARACTERISTICS CURVE 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 -80 -60 -40 -20 0 20 40 60 80 100 120 140 TEMPERATURE (°C) ISL705xRH ISL706xRH September 15, 2011 FN7662.0 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. 2011. 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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