DS1819BR-5-U

Supervisors Overview

The DS1819BR-5-U is a MicroMonitor supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 1 V to 5.5 V and features a single monitored input with a threshold of 3.06 V. The device provides active high and active low push-pull outputs, incorporating a manual reset function and a watchdog timer. It includes a reset delay time of 280 ms and maintains an operating temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Integrates manual reset capability for user-initiated system recovery
• Includes built-in watchdog timer functionality for fault detection
• Provides dual output polarity options via push-pull configuration

Supervisors Applications

• Embedded system power supervision
• Microcontroller reset management
• Industrial control unit monitoring

Supervisors Procurement Notes

Verify component authenticity through authorized channels due to potential availability constraints. Confirm package integrity and pin alignment against SOT-23-5 specifications. Review datasheet revisions for parameter updates. Ensure compliance with RoHS directives if required. Validate supplier documentation matches the specific suffix designations.

Supervisors Selection Notes

Evaluate the necessity of manual reset versus automatic power-on reset requirements. Consider the impact of the 280 ms reset delay on system startup timing. Assess compatibility with the target voltage rail relative to the 3.06 V threshold. Verify that the push-pull output drive strength meets load requirements. Confirm thermal performance within the specified industrial temperature range.

Supervisors Part Context

This component belongs to the DS1819 series of supervisory circuits designed for voltage monitoring applications. It serves as a critical element in ensuring reliable operation by detecting under-voltage conditions and managing system resets. The series offers various threshold options and packaging configurations to suit diverse electronic design needs.

Supervisors Replacement Considerations

DS1819CR-10-U

Supervisors FAQ

Does the DS1819BR-5-U support manual reset?

Yes, this specific variant includes a manual reset function allowing user-initiated system recovery.

What is the reset delay time for this device?

The reset delay time is specified as 280 ms.