DS1819CR-5/T&R

Supervisors Overview

The DS1819CR-5+T&R is a supervisory circuit from the MicroMonitor family, designed for monitoring single voltage inputs. It operates within a supply voltage range up to 5.5 V and features a threshold voltage of 3.3 V. The device provides active high, active low, and push-pull output types with a manual reset capability. It includes a watchdog timer and offers a reset delay time of 280 ms. Operating temperatures range from -40°C to +85°C, housed in an SOT-23-5 package.

Supervisors Feature Summary

• Integrated watchdog timer functionality for system reliability
• Manual reset input for user-initiated control
• Multiple output configurations including push-pull

Supervisors Applications

• Voltage supervision in embedded systems
• Microprocessor reset circuits
• Battery-powered device monitoring

Supervisors Procurement Notes

Verify component authenticity through authorized channels due to discontinued status. Confirm package integrity and RoHS compliance before integration. Cross-reference datasheet revisions for parameter accuracy. Ensure storage conditions meet manufacturer specifications to prevent degradation. Validate pinout compatibility with existing PCB layouts.

Supervisors Selection Notes

Select this component when a single-channel supervisor with manual reset and watchdog features is required. Consider the 3.3 V threshold and 280 ms delay for timing-sensitive applications. Evaluate the SOT-23-5 package size against board space constraints. Compare power consumption and operating temperature range with alternative supervisors.

Supervisors Part Context

Part of the DS1819BR/CR series, this device belongs to Maxim Integrated's MicroMonitor line. It complements other voltage supervisors by offering combined reset and watchdog functions in a compact form factor. The series targets cost-sensitive applications requiring reliable power management without complex interface requirements.

Supervisors Replacement Considerations

Check for direct substitutes like DS1819BR variants with similar thresholds. Verify functional equivalence regarding reset delay and watchdog timeout. Ensure package compatibility if replacing on existing boards.