DS1811-10

Supervisors Overview

The DS1811-10 is a supervisory circuit designed for 5V systems, featuring an open-drain output. It monitors a single input voltage with a threshold of 4.35 V and includes overvoltage detection at 4.49 V. The device provides a reset delay time of 150 ms and operates within a supply voltage range up to 5.5 V. It maintains an accuracy of 2.5% and draws a working power supply current of 40 uA. The component supports surface mount installation in an SOT-23-3 package and functions reliably across a temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Provides automatic system reset via open-drain output when monitored voltage drops below the specified threshold
• Detects overvoltage conditions independently of the primary reset function
• Operates with low quiescent current consumption suitable for power-sensitive applications

Supervisors Applications

• Monitoring 5V power rails in embedded systems
• Supervising voltage levels in industrial control equipment
• Ensuring system stability in consumer electronics powered by 5V sources

Supervisors Procurement Notes

Verify the specific suffix and tape/reel configuration against the manufacturer's latest documentation before ordering. Confirm that the open-drain output polarity matches the design requirements. Check for any RoHS compliance updates or material declarations required for your region. Ensure the operating temperature range meets the environmental specifications of the final assembly.

Supervisors Selection Notes

Select this component when a simple, low-cost voltage monitor with an open-drain interface is required. It is suitable for designs where manual reset is unnecessary and watchdog functionality is handled externally. Consider the 150 ms delay and 2.5% accuracy for timing-critical applications. Evaluate the SOT-23-3 package constraints for PCB layout.

Supervisors Part Context

The DS1811 series belongs to Maxim Integrated's EconoReset family, offering basic supervisory functions without complex features like watchdog timers or battery backup switches. This specific variant targets standard 5V logic systems requiring reliable power monitoring. It serves as a fundamental building block for ensuring microcontroller and digital circuit integrity during power transitions.

Supervisors FAQ

Does the DS1811-10 include a manual reset button?

No, the DS1811-10 does not support manual reset; it relies solely on automatic voltage monitoring.

What is the output type of the DS1811-10?

The device features an active-low, open-drain output.