DS1819BR-10-U+

Supervisors Overview

The DS1819BR-10-U+ is a voltage monitor 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 voltage of 3 V. The device provides active high, active low, and push-pull outputs. Key functional parameters include a reset delay time of 280 ms and an accuracy of 10%. It incorporates a watchdog timer and lacks manual reset capability. The component draws a typical operating supply current of 12 uA. It is housed in an SOT-23-5 package and functions reliably across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Integrates a watchdog timer for system fault detection
• Provides configurable output states including active high, active low, and push-pull configurations
• Operates with low power consumption suitable for battery-backed applications

Supervisors Applications

• Embedded systems requiring voltage supervision
• Microcontroller reset circuits
• Battery-powered devices needing power monitoring

Supervisors Procurement Notes

Verify the exact suffix configuration against official datasheets, as variations exist within the DS1819 family. Confirm availability status, as this specific part number may be discontinued or subject to limited distribution. Ensure compatibility with existing PCB footprints and voltage thresholds before procurement.

Supervisors Selection Notes

Select this component when a single-channel voltage supervisor with integrated watchdog functionality is required. Consider the 10% accuracy and 280 ms reset delay for timing-sensitive designs. Verify that the SOT-23-5 package fits the mechanical constraints and that the 1 V to 5.5 V input range matches the system power rails.

Supervisors Part Context

This component belongs to the MicroMonitor series from Maxim Integrated, now part of Analog Devices. The series focuses on compact voltage supervision solutions. The DS1819 variant specifically combines voltage monitoring with watchdog capabilities in a small footprint, targeting space-constrained portable and industrial electronics.

Supervisors Replacement Considerations

Check for direct substitutes within the DS1819 family, such as DS1819CR-10-U, noting differences in packaging or manufacturing origin. Verify pinout compatibility and electrical parameter alignment before substitution.