DS1834AU

Supervisors Overview

The DS1834AU+ is a dual-channel voltage supervisor from the EconoReset family, housed in an 8-pin uMAX surface-mount package. It monitors two independent supply rails with fixed thresholds of 3.3 V and 5 V. The device features an active-low open-drain reset output and supports manual pushbutton reset functionality. It operates within a supply voltage range up to 5.5 V and maintains accuracy within 2.5%. Designed for industrial environments, it functions reliably between -40°C and +85°C.

Supervisors Feature Summary

• Dual-channel monitoring capability for independent power rails
• Manual reset input allows user-initiated system recovery
• Open-drain output structure simplifies interface logic

Supervisors Applications

• Embedded systems requiring dual power domain supervision
• Industrial control units with mixed voltage architectures
• Communication equipment needing reliable power sequencing

Supervisors Procurement Notes

Verify component authenticity through authorized channels due to limited availability status. Confirm package integrity upon receipt as the uMAX form factor is sensitive to mechanical stress. Ensure compatibility with existing PCB footprints before integration. Check for specific manufacturing date codes if long-term supply stability is required for production runs.

Supervisors Selection Notes

Choose this component when dual voltage supervision is necessary without complex programming. The fixed threshold options eliminate external resistor networks. Consider the manual reset feature for systems requiring operator intervention during fault conditions. Verify that the open-drain output aligns with the downstream logic requirements.

Supervisors Part Context

Part of the Maxim Integrated EconoReset series designed for cost-sensitive applications. The DS1834 variant specifically addresses dual-supervision needs. Analog Devices acquired Maxim Integrated, maintaining the product lineage. The AU suffix denotes the specific temperature grade and packaging configuration.

Supervisors Replacement Considerations

Consult official datasheets for pin-compatible alternatives within the same family. Verify threshold voltages match the target application requirements exactly. Ensure package dimensions are identical for direct board replacement.