DS1831ES+

Supervisors Overview

The DS1831ES+ is a dual-input voltage supervisory circuit from the MicroMonitor family, designed for monitoring two independent power supplies. It operates within a supply voltage range of 1 V to 5.5 V and features fixed threshold voltages of 2.5 V and 3.3 V. The device provides an open-drain reset output with a typical reset delay time of 1.6 seconds. It includes manual reset functionality and a watchdog timer. The component is housed in a 16-pin SOIC package and supports surface-mount installation. Operating temperatures range from -40°C to +85°C, with a maximum operating current of 80 µA.

Supervisors Feature Summary

• Dual-channel supervision for simultaneous monitoring of separate power rails
• Integrated watchdog timer for system fault recovery
• Manual reset input capability for user-initiated system control
• Open-drain output configuration for flexible logic interfacing

Supervisors Applications

• Multi-supply embedded systems requiring voltage integrity checks
• Industrial control units with redundant power architectures
• Communication equipment needing supervised power sequencing

Supervisors Procurement Notes

Verify the specific suffix designation when ordering, as variants such as DS1831ES+T&R differ in packaging format (Reel/Cut Tape vs Tube) and may exhibit slight variations in quiescent current specifications. Confirm availability status directly with authorized distributors, as this component may be subject to limited stock or end-of-life restrictions depending on the region and supplier.

Supervisors Selection Notes

Select the DS1831ES+ when a dual-input supervisor with integrated watchdog functionality is required. Ensure the fixed 2.5 V and 3.3 V thresholds align with the target power rail levels. Consider the SOIC-16 package constraints for PCB layout. If adjustable thresholds or additional channels are needed, evaluate other members of the DS1831 family or alternative supervisory ICs.

Supervisors Part Context

The DS1831ES+ belongs to the Maxim Integrated MicroMonitor series, which focuses on low-power voltage supervision solutions. This specific part number represents the standard tube-packaged version of the dual-input supervisor. It is distinct from the T&R variant, which utilizes reel packaging, and other channel configurations within the same product line.

Supervisors Replacement Considerations

Direct substitutes include the DS1831S+ and DS1831BS+. Verify pin compatibility and electrical parameter alignment before substitution.