DS1831D

Supervisors Overview

The DS1831D is a MicroMonitor multi-supply supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It features four monitored voltage channels with thresholds of 2.5V, 3.3V, and adjustable levels. The device provides a low-active reset output via an open-drain or open-collector interface. Reset timeout delays are configurable at 10ms, 100ms, or 1,000ms. It operates within a temperature range of -40°C to +85°C in a 16-SOIC package.

Supervisors Feature Summary

• Configurable reset timeout delays for system stability
• Multi-supply monitoring with fixed and adjustable thresholds
• Open-drain/open-collector reset output compatibility

Supervisors Applications

• Multi-power-supply system supervision
• CPU supervisor voltage sense inputs
• Upstream voltage supply monitoring for power-fail warnings

Supervisors Procurement Notes

Verify component authenticity through authorized distributors due to end-of-life status. Confirm package integrity and pin alignment against the 16-SOIC specification. Review manufacturer documentation for any specific handling requirements associated with legacy inventory sources.

Supervisors Selection Notes

Select this component when multiple voltage rails require simultaneous supervision. Ensure the available reset delay options align with system startup requirements. Verify that the open-drain output configuration matches the downstream logic input capabilities.

Supervisors Part Context

Part of the MicroMonitor family designed for comprehensive power management. The DS1831 series supports complex embedded systems requiring reliable power sequencing and fault detection across diverse voltage domains.

Supervisors Replacement Considerations

Consult official substitution lists for equivalent MicroMonitor devices. Verify pinout compatibility and threshold specifications before integrating alternative components.