Overview
Description
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.
Features
- 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
- 4.65V threshold in the ISL7x5AxH/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 ISL7x5AxH/BxH/CxH
- Debounced TTL/CMOS compatible manual-reset input
- Reset output valid at VDD = 1.2V
Comparison
Applications
Design & Development
Software & Tools
Boards & Kits
Evaluation
ISL705XRHEVAL1Z
Active
Radiation Hardened, 5.0V Microprocessor Supervisory Circuit Evaluation Board
The ISL705XRHEVAL1Z evaluation board is a design platform featuring the ISL705ARH, ISL705BRH and ISL705CRH 5V supervisory circuits. It includes all the circuitry needed to characterize critical performance parameters and enables evaluation of basic functional operation and common application...
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Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on the CAD Model links in the Product Options table. If a symbol or model isn't available, it can be requested directly from SamacSys.
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