ADM823LYKS-R7

Supervisors Overview

The ADM823LYKS-R7 is a supervisory circuit manufactured by Analog Devices Inc., housed in a 5-lead SC-70 package. It integrates a watchdog timer and manual reset functionality for power supply monitoring. The device operates within a voltage range of 1.6 V to 5.5 V, with a typical supply current of 24 µA. Key electrical specifications include a reset threshold accuracy of 2.5%, a fixed reset delay time of 280 ms, and an active-low push-pull output. It supports manual reset inputs and functions across an industrial temperature range from -40°C to +125°C.

Supervisors Feature Summary

• Integrates a watchdog timer with a manual reset input for system reliability.
• Provides active-low push-pull reset output with a fixed 280 ms delay.
• Operates over a wide supply voltage range from 1.6 V to 5.5 V.
• Features high reset threshold accuracy of 2.5%.

Supervisors Applications

• Microprocessor and microcontroller system supervision
• Battery-powered equipment power management
• Industrial control systems requiring watchdog protection

Supervisors Procurement Notes

Verify the specific threshold voltage suffix (LY) corresponds to the required reset level, as the base part number covers multiple variants. Confirm the R7 suffix indicates reel packaging if applicable to your assembly process. Ensure the SC-70 package dimensions match your PCB footprint design constraints before finalizing procurement.

Supervisors Selection Notes

Select this component when a compact supervisory solution with integrated watchdog and manual reset is required. The low supply current makes it suitable for battery-operated devices. Verify that the 280 ms reset delay meets the startup timing requirements of the target processor or logic circuitry.

Supervisors Part Context

This part belongs to the ADM823 family of supervisory circuits designed for single-supply applications. It combines voltage monitoring with system protection features in a minimal footprint. The family includes various threshold options and package types to accommodate different design constraints.

Supervisors Replacement Considerations

Compatible substitutes include ADM823LYKSZ-R7 and ADM823LYRJ-R7, which share similar supervisory functions but may differ in package type or manufacturing revision. Verify pinout compatibility and threshold voltage specifications before substitution.