DS1811R-10/T&R

Supervisors Overview

The DS1811R-10+T&R is a voltage monitor supervisor circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within a supply voltage range of up to 5.5 V and features an active low, open-drain output. The device monitors a single input channel with a threshold voltage of 4.35 V and an overvoltage threshold of 4.49 V. It provides a reset delay time of 150 ms and maintains an accuracy of 2.5%. The component functions in temperatures from -40°C to +85°C, drawing a typical operating current of 40 uA. It lacks manual reset, watchdog timer, or battery backup switch capabilities.

Supervisors Feature Summary

• Provides power-failure detection for system supervision
• Features an open-drain output compatible with various logic levels
• Includes internal reset delay to ensure stable power-up sequences

Supervisors Applications

• Microprocessor system monitoring
• Portable equipment power management
• Battery-operated device supervision

Supervisors Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm pinout and electrical characteristics. Ensure the ordering information matches the required package type and tape-and-reel specifications. Confirm RoHS compliance status through the latest datasheet revision. Cross-reference the manufacturer part number with authorized distributor listings to validate authenticity and sourcing channels before procurement.

Supervisors Selection Notes

Select this component when a simple, low-power voltage supervisor is required for systems operating near 5V. The open-drain output allows for flexible interfacing with different logic families. Consider the 150ms reset delay duration relative to system startup requirements. Evaluate the 40uA quiescent current consumption against strict power budget constraints for portable applications.

Supervisors Part Context

This component belongs to the EconoReset series of supervisory circuits designed for cost-sensitive applications. It serves as a fundamental building block for ensuring reliable operation in digital systems by detecting abnormal voltage conditions. The SOT-23-3 package facilitates compact surface-mount designs.

Supervisors FAQ

Does the DS1811R-10 include a manual reset input?

No, the device does not feature a manual reset capability.

What is the output configuration of this voltage monitor?

It utilizes an active low, open-drain output structure.