DS1819CR-10/T&R

Supervisors Overview

The DS1819CR-10 is a MicroMonitor voltage supervisor manufactured by Analog Devices Inc./Maxim Integrated. It operates within a supply voltage range of 2.5V to 5.5V and features a fixed threshold voltage of 2.925V. The device provides active high and active low push-pull outputs with a minimum reset delay time of 140ms. It is housed in an SOT-23-5 package and supports surface mount installation. The component functions as a simple reset/power-on-reset circuit without manual reset or watchdog timer capabilities.

Supervisors Feature Summary

• Provides dual active high and active low push-pull output signals for flexible system integration
• Features a fixed 2.925V threshold voltage for precise power monitoring
• Includes a guaranteed minimum reset delay time of 140ms to ensure stable operation

Supervisors Applications

• Embedded systems requiring reliable power-on reset sequences
• Microcontroller-based designs needing voltage supervision
• Portable electronics utilizing single-cell battery power

Supervisors Procurement Notes

Verify the specific suffix designation carefully, as the 'T&R' indicates tape and reel packaging which differs from bulk or cut tape options. Confirm availability status directly with authorized distributors, as this part may be subject to limited supply or discontinuation notices. Ensure the ordering code matches the exact pinout and electrical specifications required for your design.

Supervisors Selection Notes

Select this component when a fixed 2.925V threshold is appropriate for the target logic voltage levels. The push-pull output configuration eliminates the need for external pull-up resistors, simplifying the schematic. Consider the SOT-23-5 package size constraints during PCB layout. Verify that the 140ms reset delay meets the startup timing requirements of the connected microprocessor or memory devices.

Supervisors Part Context

This device belongs to the MicroMonitor family of voltage supervisors designed for cost-sensitive applications. It offers a compact solution for power management in space-constrained environments. The series provides various threshold voltages to accommodate different standard logic families and power rails commonly found in consumer and industrial electronic equipment.

Supervisors Replacement Considerations

DS1819CR-10-U is a verified substitute offering identical electrical characteristics and functionality. Both parts share the same SOT-23-5 package and pinout configuration, allowing for direct replacement in existing designs without schematic modifications.