ADM809-5LART-REEL

Supervisors Overview

The ADM809-5LART-REEL is a voltage supervisory circuit from Analog Devices Inc., designed for microprocessor systems. It operates within a supply voltage range up to 5.5 V and features a threshold voltage of 4.63 V with an overvoltage threshold of 4.7 V. The device provides a push-pull reset output with a fixed delay time of 240 ms. It has an accuracy of 1.5% and consumes 60 uA of operating current. Packaged in SOT-23-3, it functions between -40 C and +125 C without manual reset or watchdog capabilities.

Supervisors Feature Summary

• Monitors power supply voltage in microprocessor systems
• Provides reset output during power-up, power-down, and brown-out conditions
• Internal timer maintains reset signal for 240 milliseconds upon power-up

Supervisors Applications

• Microprocessor system power monitoring
• Voltage supervision for embedded controllers
• Brown-out detection circuits

Supervisors Procurement Notes

Verify the exact suffix and package type against the manufacturer's latest datasheet, as ordering codes may vary. Confirm availability status, as this specific reel variant may be obsolete or discontinued. Ensure compatibility with your PCB footprint for the SOT-23-3 package. Cross-reference the threshold voltage specifications to match your system requirements precisely before finalizing procurement decisions.

Supervisors Selection Notes

Select this component when a fixed 4.63 V threshold is required for single-input voltage monitoring. It is suitable for applications needing a simple push-pull output without manual reset inputs. Consider the 60 uA quiescent current and 1.5% accuracy for precision-sensitive designs. Verify that the 240 ms delay meets your system startup timing constraints.

Supervisors Part Context

This part belongs to the ADM809 series of supervisory circuits by Analog Devices. These devices are engineered to monitor power supply voltages and generate reset signals for microprocessors. The series typically includes variants with different threshold voltages and packages, serving as reliable power management ICs for ensuring system stability during voltage fluctuations.

Supervisors Replacement Considerations

Check for ADM809JARTZ-REEL7 (4V threshold) or ADM809LARTZ-REEL7 (4.63V threshold) as potential functional substitutes within the same family. Verify pinout compatibility and ensure the replacement part supports the required SOT-23-3 package and operating temperature range.