DS1818R-5-U+

Supervisors Overview

The DS1818R-5-U+ is a supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated, designed for power supply monitoring applications. It operates within an input voltage range of 1.0V to 5.5V and features a fixed threshold voltage of 3.06V. The device provides a low-active reset signal with a minimum timeout of 100ms. It is housed in a compact SOT-23-3 surface-mount package and supports operation across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Integrates pushbutton functionality for manual system reset control
• Provides low-active open-drain or open-collector reset output
• Supports wide input voltage operation from 1V to 5.5V

Supervisors Applications

• Embedded systems requiring manual reset capability
• Portable electronic devices with limited power budgets
• Industrial control circuits needing reliable supervision

Supervisors Procurement Notes

Verify the exact suffix configuration against official datasheets to ensure compatibility with specific design requirements. Confirm RoHS compliance status and lead times through authorized distributors. Check for obsolescence notices or lifecycle changes before finalizing procurement plans.

Supervisors Selection Notes

Select this component when a fixed 3.06V threshold and manual reset button are required. Ensure the SOT-23-3 package fits the board layout constraints. Verify that the 100ms reset timeout meets the system's startup timing specifications.

Supervisors Part Context

This part belongs to the EconoReset series, which focuses on cost-effective power management solutions. It complements other Maxim Integrated supervisors by adding user-initiated reset functionality without increasing component count significantly.

Supervisors Replacement Considerations

DS1818R-5-U is a compatible variant within the same family. Verify pinout and electrical characteristics match before substitution.