DS1831B+

Supervisors Overview

The DS1831B+ is a MicroMonitor voltage supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It monitors up to four power supply rails and provides reset signals via open-drain outputs. The device operates within a supply voltage range of 1V to 5.5V and features adjustable threshold voltages, including fixed options at 3V, 3.3V, and 5V. It supports manual reset functionality with configurable delay times of 10ms, 100ms, or 1000ms. The component functions reliably across an industrial temperature range from -40°C to +85°C and is housed in a 16-pin PDIP package.

Supervisors Feature Summary

• Multi-supply monitoring capability for tracking multiple voltage rails simultaneously
• Configurable reset time delays to accommodate specific system startup requirements
• Adjustable voltage trip levels allowing flexibility for various power supply standards

Supervisors Applications

• Embedded systems requiring robust power supply supervision
• Industrial control equipment operating in harsh environments
• Portable electronic devices utilizing multi-voltage architectures

Supervisors Procurement Notes

Verify current availability status as the component may be subject to limited distribution or end-of-life constraints. Confirm that the selected package matches design requirements, as the standard configuration utilizes a through-hole DIP format. Ensure compatibility with existing PCB footprints and verify that the open-drain output interface aligns with the target microcontroller or logic gate input specifications.

Supervisors Selection Notes

Evaluate the required number of monitored channels against the available four-channel capacity. Determine if the adjustable threshold feature is necessary compared to fixed-level alternatives. Assess whether the specified reset delay options meet the system's power-up sequencing needs. Consider the operational temperature range to ensure reliability under expected environmental conditions.

Supervisors Part Context

This component belongs to the DS1831 series of MicroMonitor circuits designed for comprehensive power management. It serves as a critical protection element in complex electronic designs where multiple voltage domains must be supervised. The series offers variations in channel count and threshold configurations to suit diverse application requirements.

Supervisors Replacement Considerations

Consult official manufacturer documentation for confirmed substitute part numbers. Verify pinout compatibility and electrical parameter equivalence before implementation.