DS1831+

Supervisors Overview

The DS1831+ is a MicroMonitor™ supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It functions as a multi-supply voltage monitor designed to oversee multiple power rails within electronic systems. The device features an open-drain or open-collector output and provides active-low reset signals. It supports configurable timeout delays for reset assertion, ensuring stable system initialization. The component operates within a supply voltage range of 1V to 5.5V and is available in various packages including SOIC-16 and PDIP-16, suitable for through-hole or surface-mount applications across industrial temperature ranges.

Supervisors Feature Summary

• Multi-supply monitoring capability for overseeing multiple voltage rails simultaneously
• Configurable reset timeout delays to manage system startup sequences
• Open-drain/open-collector output interface for flexible logic integration

Supervisors Applications

• Multi-voltage power supply supervision in embedded systems
• CPU supervisor voltage sense inputs requiring hysteresis
• Power-fail warning detection for upstream voltage supplies

Supervisors Procurement Notes

Verify the specific suffix (e.g., CS+, ES+, BS+) to confirm package type and threshold voltages, as the base part number covers multiple variants. Confirm RoHS compliance status, as some legacy versions may not meet current environmental standards. Check manufacturer documentation for pinout compatibility with existing PCB layouts before procurement.

Supervisors Selection Notes

Select based on required monitored voltage thresholds, such as fixed 2.5V/3.3V or adjustable options. Choose the appropriate package (SOIC vs. DIP) based on assembly requirements. Ensure the selected variant supports the necessary reset delay configurations for the target application's timing constraints.

Supervisors Part Context

The DS1831 belongs to the Maxim Integrated MicroMonitor™ family of supervisory circuits. This series is designed for power management applications requiring reliable voltage monitoring. The component integrates watchdog timer functionality in certain variants to enhance system reliability against software faults.

Supervisors Replacement Considerations

Direct substitutes include DS1831CS+, DS1831ES+, and DS1831BS+. Verify package compatibility and threshold voltage specifications when substituting between these variants.