DS1831ES/T&R

Supervisors Overview

The DS1831ES+T&R is a MicroMonitor voltage supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It monitors two independent power supply inputs with fixed thresholds of 2.5 V, 3 V, and 3.3 V. The device features an active low, open-drain reset output and supports manual reset functionality. It operates within a supply voltage range up to 5.5 V and includes a reset delay time of 2 seconds. The component functions in temperatures from -40°C to +85°C and consumes 85 µA to 100 µA of operating current. It is housed in a 16-SOIC narrow package.

Supervisors Feature Summary

• Monitors multiple power supply rails simultaneously for undervoltage conditions
• Provides active low open-drain reset signal generation upon fault detection
• Supports manual reset input for system control override
• Includes fixed threshold voltage options for standard logic levels

Supervisors Applications

• Multi-supply microprocessor systems requiring voltage supervision
• Embedded controllers needing automatic reset on power failure
• Industrial equipment monitoring critical voltage rails

Supervisors Procurement Notes

Verify the exact suffix designation when ordering, as variations exist within the family. Confirm availability status directly with authorized distributors due to potential limited stock or discontinuation notices. Ensure the specific threshold voltage variant matches the design requirements before procurement. Check RoHS compliance documentation for regulatory adherence.

Supervisors Selection Notes

Select this component when simultaneous monitoring of two distinct voltage rails is required without adjustable thresholds. The fixed 2.5 V, 3 V, and 3.3 V options suit standard digital logic families. Consider the open-drain output compatibility with the target system's pull-up configuration. Verify that the 2-second reset delay aligns with the system's startup timing requirements.

Supervisors Part Context

This part belongs to the Maxim Integrated MicroMonitor series, designed for reliable power management in embedded applications. The ES suffix typically denotes a specific temperature grade or package variation within the broader DS1831 family. These devices are engineered to ensure system stability by detecting power supply anomalies and initiating controlled resets.

Supervisors Replacement Considerations

Consult official datasheets for cross-reference candidates within the DS1831 family. Verify pinout compatibility and threshold voltage matching before substitution. No direct public substitute part numbers are confirmed in the provided source material.