DS1819CR-5+T&R

Supervisors Overview

The DS1819CR-5+T&R is a MicroMonitor voltage 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 features a reset threshold voltage of 2.925 V. The device provides active high and active low outputs in a push-pull configuration, housed in an SOT-23-5 package. It includes a manual reset input and a watchdog timer for system protection. The reset delay time is specified at 140 ms minimum. Operating temperatures range from -40°C to +85°C.

Supervisors Feature Summary

• Integrates dual active high and active low push-pull outputs for flexible logic interfacing
• Includes a manual reset input allowing user-initiated system resets
• Features an integrated watchdog timer to monitor system software execution

Supervisors Applications

• Portable equipment requiring low power consumption
• Battery-powered systems needing reliable voltage supervision
• Microprocessor-based designs requiring watchdog functionality

Supervisors Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix matches the required package and temperature grade. Check current lifecycle status as this part may be discontinued or subject to limited availability. Ensure RoHS compliance documentation aligns with regional regulatory requirements before finalizing procurement orders.

Supervisors Selection Notes

Select this component when dual output polarity is required without external inverters. The integrated watchdog simplifies design compared to separate supervisor ICs. Verify that the 2.925 V threshold aligns with the target supply rail. Consider the SOT-23-5 footprint constraints during PCB layout. Compare against the DS1819BR series if different output configurations are needed.

Supervisors Part Context

This part belongs to the Maxim Integrated MicroMonitor family, designed for compact voltage supervision. It complements the EconoReset line by offering additional features like watchdog timers. The DS1819 series is widely used in consumer electronics and industrial controls where space-saving surface mount packages are preferred over through-hole alternatives.

Supervisors Replacement Considerations

Public confirmed substitute part numbers: DS1819BR-20+T&R, DS1819AR-20/T&R.