DS1834AS+T&R

Supervisors Overview

The DS1834AS+T&R is a dual voltage supervisor circuit manufactured by Analog Devices Inc. under the Maxim Integrated brand, packaged in an SOIC-8 surface-mount format. It monitors two independent input voltages with a threshold of 3.3 V and features active low open-drain outputs. The device includes manual reset functionality via a pushbutton, lacks a watchdog timer or battery backup switch, and provides a fixed reset delay of 75 ms. It operates within a supply voltage range up to 5.5 V, consumes 25 uA of quiescent current, and maintains accuracy within 20%. The component supports overvoltage detection at 3.15 V and functions reliably across an industrial temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Dual-channel voltage monitoring with dedicated inputs for independent power rail supervision
• Manual reset capability allowing user-initiated system restarts via external pushbutton
• Overvoltage protection detecting supply levels exceeding specified thresholds
• Low-power operation suitable for battery-constrained embedded applications

Supervisors Applications

• Multi-rail power supply sequencing in industrial control systems
• Embedded microcontroller reset management in consumer electronics
• Voltage supervision for communication interface circuits
• Power integrity monitoring in automotive infotainment units

Supervisors Procurement Notes

Verify the exact suffix designation against official datasheets to confirm package type and temperature grade. Confirm RoHS compliance status through manufacturer documentation before integration. Check availability constraints as distribution channels may report limited stock or discontinuation notices. Ensure the ordering part number matches the specific variant required for your design specifications.

Supervisors Selection Notes

Select this component when dual independent voltage monitoring is required without complex programming interfaces. The fixed 3.3 V threshold suits standard logic families. Consider the open-drain output compatibility with your system's pull-up requirements. Evaluate the 75 ms reset delay against your processor's startup time needs. Verify that the absence of a watchdog timer aligns with your system's fault recovery strategy.

Supervisors Part Context

This device belongs to the MicroManager series of supervisory circuits designed for reliable power management. It complements other single-channel variants like the DS1836 and multi-channel options such as the DS1831. The SOIC-8 package offers a compact footprint compared to larger DIP alternatives while maintaining robust thermal performance for surface-mount assembly processes.

Supervisors Replacement Considerations

Consult official substitution guides for compatible dual-supervisor ICs. Verify pinout compatibility with existing PCB layouts before swapping components. Ensure threshold voltages and reset delays match original design requirements.