ADM693AARWZ-REEL

Supervisors Overview

The ADM693AARWZ-REEL is a voltage supervisory circuit manufactured by Analog Devices Inc., designed for monitoring single-input power rails. It operates within a supply voltage range of 4.5 V to 5.5 V, featuring a threshold voltage of 4.4 V and an overvoltage threshold of 4.5 V. The device provides open-drain and push-pull outputs with a reset delay time of 280 ms. It integrates a watchdog timer and battery backup switch functionality, supporting chip enable signals. Operating currents are specified at 100 uA, with power dissipation rated at 762 mW. The component is housed in a 16-pin SOIC package and functions reliably across temperatures from -40°C to +85°C.

Supervisors Feature Summary

• Integrates a watchdog timer and battery backup switch for comprehensive system protection
• Provides both open-drain and push-pull output configurations for flexible interfacing
• Includes chip enable signal support for power management control
• Detects power failures to ensure system integrity during voltage anomalies

Supervisors Applications

• Microprocessor power supply monitoring systems
• Battery backup switching circuits
• Watchdog timer implementations in embedded controllers
• Power failure detection logic in industrial equipment

Supervisors Procurement Notes

Verify the specific suffix REEL against official Analog Devices documentation to confirm reel packaging specifications. Confirm current lifecycle status as the product may be subject to obsolescence or limited availability. Ensure compatibility with required operating temperature ranges and voltage thresholds before procurement. Cross-reference datasheet revisions to validate electrical parameters match design requirements.

Supervisors Selection Notes

Select this component when a single-input supervisor with integrated watchdog and backup capabilities is required. Compare threshold voltages against target rail specifications to ensure accurate triggering. Evaluate output drive types against downstream logic requirements. Consider power consumption metrics for low-power applications. Verify package compatibility with existing PCB footprints and assembly processes.

Supervisors Part Context

This part belongs to the ADM693A series of voltage supervisors from Analog Devices. It is categorized under PMIC - Power Management ICs. The device complements other ADM69x series parts by offering specific threshold and feature combinations. It serves as a critical component in ensuring reliable operation of digital systems by monitoring power integrity.

Supervisors Replacement Considerations

Public confirmed substitute part numbers include ADM693AARWZ.