DS1819AR-10-U

Supervisors Overview

The DS1819AR-10-U 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 threshold accuracy of 10%. The device includes an integrated watchdog timer with a reset delay time of 280ms. It utilizes a SOT-23-5 surface-mount package and supports active high, active low, and push-pull output configurations. The component functions as a voltage monitor for single-input applications.

Supervisors Feature Summary

• Integrates a watchdog timer function for system reliability monitoring
• Provides configurable reset outputs including active high, active low, and push-pull modes
• Operates across a wide power supply voltage range from 1V to 5.5V

Supervisors Applications

• Voltage supervision in embedded systems
• System reset generation for microprocessors
• Watchdog timer implementation in industrial control circuits

Supervisors Procurement Notes

Verify the specific suffix 'U' against official datasheets to confirm tape-and-reel packaging requirements. Confirm that the manufacturer designation aligns with current Analog Devices or Maxim Integrated sourcing channels. Ensure compatibility with existing PCB footprints for the SOT-23-5 package before procurement.

Supervisors Selection Notes

Select this component when a combined voltage supervisor and watchdog timer is required in a compact form factor. The 10% threshold accuracy suits general-purpose applications where precise voltage tracking is not critical. Consider the 280ms reset delay for timing constraints in the target design.

Supervisors Part Context

This part belongs to the DS1819 MicroMonitor series designed for low-power supervisory applications. It consolidates power supply monitoring and watchdog functionalities into a single small-outline transistor package. The series is intended for use in portable and battery-operated devices requiring efficient power management.

Supervisors Replacement Considerations

Consult official documentation for direct substitutes within the DS1819 family. Verify pinout and electrical parameter compatibility before replacing with variants such as DS1819BR-10-U.