DS1834AU/T&R

Supervisors Overview

The DS1834AU/T&R is a dual-channel voltage supervisor from the EconoReset family, manufactured by Analog Devices Inc. (Maxim Integrated). It monitors two independent power rails with fixed thresholds 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 up to 5.5 V and maintains accuracy within 2.5%. Key electrical parameters include a reset delay time of 350 ms, a maximum operating current of 50 uA, and overvoltage detection thresholds at 2.97 V and 4.75 V. It functions reliably between -40°C and +85°C in a compact uMAX-8 surface-mount package.

Supervisors Feature Summary

• Dual-channel monitoring for simultaneous supervision of two distinct voltage rails
• Integrated manual reset capability allowing user-initiated system recovery
• Low-power operation suitable for battery-constrained embedded applications
• Overvoltage detection logic to protect against excessive supply conditions

Supervisors Applications

• Embedded systems requiring redundant power rail supervision
• Industrial control units needing manual reset functionality
• Consumer electronics with strict low-power standby requirements
• Automotive infotainment systems utilizing robust voltage monitoring

Supervisors Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to limited availability status. Confirm package integrity upon receipt, as the uMAX-8 form factor requires careful handling during inspection. Ensure compatibility with existing PCB footprints before integration. Cross-reference datasheet revisions to confirm pinout consistency. Validate thermal performance under actual load conditions prior to final deployment.

Supervisors Selection Notes

Select this component when dual-voltage supervision with manual intervention is required. Compare against single-channel alternatives if only one rail needs monitoring. Consider the fixed threshold values against dynamic requirement needs. Evaluate the uMAX-8 package size constraints relative to board space limitations. Assess the 50 uA current consumption against total system budget requirements.

Supervisors Part Context

This part belongs to the Maxim Integrated EconoReset series, designed for cost-sensitive applications requiring reliable power management. The AU suffix indicates the specific uMAX-8 surface-mount package variant. The T&R designation confirms tape-and-reel packaging for automated assembly processes. This family emphasizes simplicity and low quiescent current for portable and industrial devices.

Supervisors Replacement Considerations

DS1834AS+T&R serves as a pin-compatible alternative offering SOIC-8 packaging instead of uMAX-8. Verify footprint differences before substitution. Other EconoReset variants may lack manual reset inputs or dual-channel capabilities. Consult official cross-reference guides for confirmed equivalents.