DS1818-5/T&R

Supervisors Overview

The DS1818-5/T&R is a voltage supervisory circuit from the EconoReset series, manufactured by Analog Devices Inc./Maxim Integrated. It features a single monitored input with a threshold voltage of 3.06 V and an overvoltage threshold of 3.15 V. The device provides active low or open drain reset output with a manual reset capability and a reset delay time of 250 ms. It operates within a supply voltage range up to 5.5 V and supports through-hole installation in a TO-92-3 package. The component functions across a temperature range of -40°C to +85°C, consuming 35 uA of operating current.

Supervisors Feature Summary

• Provides power-failure detection for system supervision
• Includes manual reset functionality via pushbutton interface
• Delivers active low or open drain reset signal output

Supervisors Applications

• Voltage monitoring in embedded systems
• Power supply supervision for microcontrollers
• System reset generation in industrial control units

Supervisors Procurement Notes

Verify component status as this part may be discontinued or subject to limited availability. Confirm package type and electrical specifications against official datasheets before integration. Check for obsolescence notices from Analog Devices or Maxim Integrated. Ensure compatibility with existing board layouts and thermal requirements. Validate sourcing channels for genuine parts to avoid counterfeit risks.

Supervisors Selection Notes

Select this component when a simple, cost-effective supervisor with manual reset is required. Consider the TO-92-3 through-hole package for prototyping or specific mechanical constraints. Evaluate the 3.06 V threshold against target rail voltages. Assess the 250 ms reset delay against system startup timing requirements. Compare operating current consumption with other available supervisors.

Supervisors Part Context

This part belongs to the DS1818 family of EconoReset supervisors. Similar variants include the DS1818R-5+T&R (SOT-23-3 surface mount) and DS1818-20/T&R (different threshold). The family offers fixed thresholds for common voltage rails. The T&R suffix indicates tape and reel packaging, though this specific through-hole variant may have different standard packaging configurations.

Supervisors Replacement Considerations

Public confirmed substitute part numbers are not explicitly listed in the provided source material. Verify cross-references with Analog Devices documentation for direct replacements.