DS1813-5/T&R

Supervisors Overview

The DS1813-5/T&R is a supervisory circuit from the EconoReset series manufactured by Analog Devices Inc./Maxim Integrated. It monitors power supply status using a precision temperature reference and comparator to detect out-of-tolerance conditions, generating an active reset signal when necessary. The device includes a pushbutton reset option that triggers a reset upon release, holding the output low for approximately 150ms to allow stabilization. It operates within a voltage range of 4.5V to 5.5V and supports a fixed threshold of 5V. The component is available in a TO-92 package with three pins and functions across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Integrates a precision temperature reference and comparator circuit for accurate power supply monitoring
• Features a manual pushbutton reset input that generates a timed reset pulse upon release
• Provides a stable reset hold time to ensure processor and power supply stabilization during power-up

Supervisors Applications

• Microprocessor system supervision requiring manual reset capability
• Embedded systems needing reliable power-fail detection
• Industrial control units operating in varying thermal environments

Supervisors Procurement Notes

Verify the specific suffix and packaging configuration against current manufacturer documentation, as availability may vary. Confirm RoHS compliance status and lead times directly with authorized distributors or the manufacturer, as this component may be subject to limited supply or discontinuation notices. Ensure the selected variant matches the required pinout and electrical specifications for your design.

Supervisors Selection Notes

Select this component when a simple, cost-effective supervisory solution with manual reset functionality is required. It is suitable for applications where a fixed 5V threshold is appropriate and a TO-92 through-hole package fits the mechanical constraints. Consider alternatives if surface-mount technology or adjustable thresholds are needed.

Supervisors Part Context

This part belongs to the Maxim Integrated EconoReset family, designed for basic power management tasks. It simplifies system design by combining power-fail detection and reset generation in a single small package. The series is known for providing essential protection for microcontrollers without complex configuration requirements.

Supervisors Replacement Considerations

Check for direct replacements such as the DS1812R-5+T&R for SOT-23-3 packaging or other variants within the DS181x series. Verify pin compatibility and electrical parameters before substitution.