DS1811R-15+T&R

Supervisors Overview

The DS1811R-15+T&R is a voltage monitor supervisor circuit manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 2.0 V to 5.5 V and features a fixed threshold voltage of 4.35 V with an accuracy of 2.5%. The device provides an active low, open-drain reset output and includes a programmable reset delay time ranging from 50 ms to 150 ms. It draws a maximum operating supply current of 40 uA and functions reliably across an industrial temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Provides power-failure detection capabilities for system monitoring
• Features an open-drain output compatible with various logic families
• Offers a compact SOT-23-3 surface-mount package design

Supervisors Applications

• Portable battery-powered equipment requiring low standby current
• Microprocessor systems needing reliable power supervision
• Consumer electronics utilizing single-supply architectures

Supervisors Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm exact electrical characteristics and packaging options. Ensure compatibility with your system's voltage requirements and thermal constraints before finalizing procurement decisions based on verified datasheet specifications.

Supervisors Selection Notes

Select this component when a fixed 4.35 V threshold is required for 5 V systems. Consider the 40 uA quiescent current for battery life optimization. Verify that the open-drain output configuration aligns with your microcontroller input requirements without additional pull-up components if necessary.

Supervisors Part Context

This part belongs to the DS1811 EconoReset series, designed for cost-sensitive applications. It serves as a fundamental supervisory solution for ensuring stable operation in digital circuits by monitoring supply voltage levels and initiating resets during brown-out conditions.

Supervisors Replacement Considerations

Consult official cross-reference guides for direct replacements. Verify pinout compatibility and electrical parameter alignment with any substitute parts to ensure seamless integration into existing designs.