DS1819BR-10/TR

Supervisors Overview

The DS1819BR-10/TR is a MicroMonitor supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It operates within a supply voltage range of 1V to 5.5V and features a single monitored input with a threshold accuracy of 10%. The device integrates a watchdog timer and provides active high, active low, and push-pull outputs. Key electrical parameters include a reset delay time of 280ms, an overvoltage threshold of 3.3V, and an undervoltage threshold of 2.85V. It functions reliably between -40°C and +85°C, consuming only 12µA of operating current.

Supervisors Feature Summary

• Integrates a watchdog timer for system fault recovery
• Provides configurable output types including active high, active low, and push-pull
• Features a single-channel voltage monitoring capability

Supervisors Applications

• Embedded systems requiring power supply supervision
• Microcontroller reset circuits
• Industrial control units

Supervisors Procurement Notes

Verify the specific suffix TR indicates tape and reel packaging when sourcing. Confirm RoHS compliance status as documentation may vary by production batch. Ensure the manufacturer designation matches Analog Devices or Maxim Integrated to guarantee component authenticity and performance specifications.

Supervisors Selection Notes

Select this component for applications requiring a compact SOT-23-5 package with integrated watchdog functionality. Consider the 10% threshold accuracy and 280ms reset delay against system timing requirements. Evaluate the 12µA quiescent current suitability for battery-operated designs compared to higher consumption alternatives.

Supervisors Part Context

This part belongs to the DS1819 series of supervisory circuits from Analog Devices/Maxim Integrated. These devices are designed for simple reset and power-on-reset applications in portable and industrial electronics. The series typically offers various threshold voltages and output configurations to accommodate different system voltage levels.

Supervisors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.