DS1819AR-20/T&R

Supervisors Overview

The DS1819AR-20/T&R is a MicroMonitor supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It operates within a supply voltage range of up to 5.5 V and features a threshold voltage of 3.3 V. The device monitors one input and provides active high, active low, and push-pull output types. It includes manual reset capability and a watchdog timer. The reset delay time is 280 ms, with an overvoltage threshold of 2.7 V. Operating current is 12 uA. It functions between -40 C and +85 C in a SOT-23-5 package.

Supervisors Feature Summary

• Integrates a watchdog timer for system reliability monitoring
• Supports multiple output configurations including active high, active low, and push-pull
• Includes manual reset functionality for user-initiated control

Supervisors Applications

• Voltage supervision in embedded systems
• Power management circuits requiring watchdog protection
• Microcontroller reset generation

Supervisors Procurement Notes

Verify component authenticity through authorized channels due to discontinued status. Confirm RoHS compliance details via official documentation. Check for moisture sensitivity handling requirements during storage and assembly. Ensure compatibility with existing PCB footprint and electrical specifications before integration into new designs.

Supervisors Selection Notes

Select this component when a single-channel supervisory circuit with integrated watchdog is required. Consider the specific threshold voltage and output type needs. Evaluate the operating temperature range against environmental conditions. Verify power consumption constraints align with the 12 uA operating current specification.

Supervisors Part Context

This part belongs to the DS1819BR series of MicroMonitor supervisory circuits. It is designed for applications requiring reliable power system monitoring. The device integrates essential features like watchdog timers and manual resets in a compact package. It serves as a critical component for ensuring system stability in voltage-sensitive electronic designs.

Supervisors Replacement Considerations

DS1819AR-5+T&R is a confirmed substitute offering similar supervisory functions with different threshold characteristics.