DS1831S/T&R

Supervisors Overview

The DS1831S/T&R is a MicroMonitor multi-supply voltage supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It features four monitored channels with open-drain or open-collector outputs and active-low reset signals. The device supports threshold voltages of 3.3V, 5V, and adjustable levels. Reset timeout delays are configurable to minimum values of 10ms, 100ms, or 1,000ms. It operates within a temperature range of -40°C to +85°C and is housed in a 16-SOIC surface-mount package.

Supervisors Feature Summary

• Provides simultaneous supervision for multiple power supply rails
• Configurable reset delay timers for system stability
• Supports manual reset input functionality

Supervisors Applications

• Multi-voltage embedded systems requiring power monitoring
• Industrial control units with complex power architectures
• Communication equipment needing reliable reset sequencing

Supervisors Procurement Notes

Verify the specific suffix against official documentation to confirm exact threshold configurations and delay settings. Ensure the ordering part number matches the required voltage trip levels and package type. Confirm RoHS compliance status and lead times directly with authorized distributors prior to procurement.

Supervisors Selection Notes

Select this component when designing systems requiring independent monitoring of four distinct voltage rails. Consider the adjustable threshold options if standard fixed voltages do not match the target supply levels. Evaluate the available reset timeout durations to ensure compatibility with the microcontroller's startup requirements.

Supervisors Part Context

This device belongs to the MicroMonitor family of supervisory circuits designed for robust power management. It integrates multiple voltage detectors into a single compact package, reducing board space compared to discrete solutions. The series is widely used in applications demanding high reliability across varying environmental conditions.

Supervisors FAQ

What output configuration does the DS1831S provide?

The device provides open-drain or open-collector outputs with an active-low reset signal.

Is the reset delay time fixed or adjustable?

The reset timeout is configurable, offering minimum delay options of 10ms, 100ms, or 1,000ms.