DS1816R-20+T&R

Supervisors Overview

The DS1816R-20+T&R is a single-channel voltage supervisor from the EconoReset series, manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 2.5V to 5.5V and features a fixed threshold voltage of 3.06V. The device provides an active-low reset signal with a minimum timeout of 100ms. It utilizes an open-drain or open-collector output configuration and is housed in a SOT-23-3 surface-mount package. The component supports operation across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Provides simple power-on reset functionality for single-supply systems
• Features open-drain or open-collector output for flexible logic interfacing
• Includes a guaranteed minimum reset timeout period to ensure stable system initialization

Supervisors Applications

• Microprocessor and microcontroller power supply monitoring
• Battery-powered equipment requiring reliable power supervision
• Portable electronic devices needing low-voltage detection

Supervisors Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm exact electrical characteristics and packaging options. Ensure compatibility with required operating temperatures and voltage thresholds before integration. Confirm RoHS compliance status through current datasheets as specifications may evolve. Cross-reference part numbers with authorized distributors to avoid counterfeit components.

Supervisors Selection Notes

Select this component when a fixed threshold voltage near 3.06V is required for single-channel supervision. Consider the open-drain output capability if level shifting or wired-OR configurations are necessary. Evaluate the SOT-23-3 package constraints against available PCB space. Verify that the 100ms minimum timeout meets the target system's startup requirements.

Supervisors Part Context

This device belongs to the DS1816 family of voltage supervisors designed for cost-sensitive applications. It serves as a fundamental power management IC ensuring system reliability by detecting under-voltage conditions. The EconoReset series emphasizes simplicity and low cost while maintaining essential supervisory functions for embedded systems.

Supervisors Replacement Considerations

DS1816R-5+T&R offers a different threshold voltage (3.06V vs 2.55V). DS1816R-20/ T&R represents the non-RoHS compliant version of the same functional device.