ISL706BRH
Rad-Hard, 5.0V/3.3V µ-Processor Supervisory Circuits
Key Features
- Electrically Screened to SMD 5962-11213
- QML Qualified per MIL-PRF-38535 Requirements
- Radiation Hardness
- High Dose Rate: 100krad(Si)
- SEL/SEB LETVTH: 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
Description
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 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
