DS1819BR-5/T&R

Supervisors Overview

The DS1819BR-5/T&R is a MicroMonitor supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It operates within a supply voltage range of 2.7 V to 5.5 V and monitors a single input channel. The device features a fixed threshold voltage of 3.3 V, an active high/low push-pull output, and manual reset capability. It includes a watchdog timer and power-fail detection. The component is housed in a SOT-23-5 package and supports operation from -40°C to +85°C with a quiescent current of 12 µA.

Supervisors Feature Summary

• Integrated watchdog timer for system reliability monitoring
• Manual reset pin for user-initiated system control
• Power-fail detection for voltage anomaly identification
• Push-pull output configuration for direct logic interfacing

Supervisors Applications

• Embedded system power supervision
• Microcontroller reset management
• Industrial control unit monitoring
• Consumer electronics voltage oversight

Supervisors Procurement Notes

Verify the specific suffix 'BR' against official datasheets to confirm temperature grade and manufacturing lot details. Confirm availability status as this part may be discontinued or subject to limited distribution channels. Ensure compatibility with existing PCB footprint and signal requirements before procurement.

Supervisors Selection Notes

Select this component when a fixed 3.3 V threshold is required for single-channel monitoring. Consider the SOT-23-5 package size constraints and the need for manual reset functionality. Evaluate the 12 µA quiescent current against system power budgets and verify that the operating temperature range meets environmental specifications.

Supervisors Part Context

This component belongs to the Maxim Integrated DS1819 series of MicroMonitor circuits. These devices are designed for low-cost, space-constrained applications requiring reliable power supervision. The series typically offers various threshold options and packaging configurations to suit different embedded design needs.

Supervisors Replacement Considerations

Consult official substitution guides for equivalent supervisory circuits with matching thresholds and packages. Verify functional compatibility regarding watchdog and reset features before replacing.