DS1831CS/T&R

Supervisors Overview

The DS1831CS/T&R is a multi-voltage supervisor IC from the MicroMonitor™ series, manufactured by Analog Devices Inc./Maxim Integrated. It monitors up to four voltage channels simultaneously with open-drain or open-collector outputs and active-low reset signals. The device supports minimum timeout delays of 10ms, 100ms, and 1,000ms. Voltage thresholds include fixed 2.5V and 3.3V options alongside adjustable inputs. 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

• Simultaneous monitoring of up to four independent voltage supply rails
• Configurable reset timeout delays for system stability
• Flexible threshold selection with fixed and adjustable voltage inputs
• Open-drain/open-collector output compatibility for diverse logic levels

Supervisors Applications

• Multi-supply power management systems requiring simultaneous voltage supervision
• Embedded systems needing configurable power-fail warnings
• Industrial equipment operating in extended temperature environments
• CPU supervisor circuits with hysteresis requirements

Supervisors Procurement Notes

Verify component authenticity through authorized distributors due to end-of-life status. Confirm RoHS compliance requirements as the base DS1831C family may not meet current standards. Check datasheet revisions for any pinout or electrical parameter updates before finalizing designs. Ensure ordering suffixes match required packaging formats.

Supervisors Selection Notes

Select this component when multiple voltage rails require centralized supervision with customizable delay characteristics. The adjustable thresholds allow adaptation to non-standard supply voltages. Consider the SOIC package for surface-mount assembly constraints. Evaluate the active-low reset polarity against downstream logic requirements.

Supervisors Part Context

Part of the Maxim Integrated MicroMonitor™ family designed for robust power management. The DS1831 variant specifically addresses multi-supply applications where precise timing and voltage monitoring are critical. It complements other PMIC solutions by providing dedicated supervisory functions without complex digital interfaces.

Supervisors Replacement Considerations

Public confirmed substitute part numbers: DS1831CS+ (Tape & Reel), DS1831C (DIP). Verify functional equivalence regarding threshold voltages and timeout configurations before substitution.