DS1834U/T&R

Supervisors Overview

The DS1834U/T&R is a dual voltage supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated. It monitors two independent power supply rails with threshold voltages of 3.3 V and 5 V. The device features an active low, open-drain output and supports manual reset via a pushbutton input. It operates within a supply voltage range of 1.2 V to 5.5 V and consumes 50 uA of working current. The reset delay time is 500 ms. It is housed in a uMAX-8 package and functions between -40 C and +85 C.

Supervisors Feature Summary

• Dual-channel voltage supervision for independent power rails
• Manual reset capability through dedicated pushbutton interface
• Active low open-drain output configuration
• Low quiescent current consumption for power efficiency

Supervisors Applications

• Embedded systems requiring dual power rail monitoring
• Industrial control units with manual reset interfaces
• Consumer electronics with strict power management requirements

Supervisors Procurement Notes

Verify the specific suffix T&R indicates tape and reel packaging when sourcing. Confirm availability status as distribution channels may list limited stock or end-of-life conditions. Ensure the uMAX-8 footprint matches your PCB design constraints before finalizing procurement decisions.

Supervisors Selection Notes

Select this component when dual voltage monitoring is required alongside manual reset functionality. Compare against single-channel supervisors if only one rail needs oversight. Verify that the 500 ms reset delay aligns with system startup timing requirements and that the open-drain output suits the microcontroller input logic levels.

Supervisors Part Context

This part belongs to the DS1834 series of EconoReset supervisory circuits. It is designed for cost-sensitive applications requiring reliable power management without complex configuration. The manufacturer integrates this line into their broader portfolio of power management ICs focused on simplicity and robustness.

Supervisors Replacement Considerations

Check for direct pin-compatible alternatives within the same family. Verify that substitute parts maintain the same dual-channel architecture and manual reset support. Ensure electrical parameters such as threshold voltages and operating temperature ranges match the original design specifications.