DS1834

Supervisors Overview

The DS1834 is a dual-channel voltage supervisory circuit from the EconoReset family. It monitors two independent power supply rails with fixed threshold voltages of 3.3 V and 5 V. The device features an active low, open-drain reset output and supports manual reset functionality via a pushbutton input. It operates within a supply voltage range up to 5.5 V and includes a reset delay time of approximately 350 ms to 500 ms depending on the package variant. The component offers high accuracy of 2.5% and consumes low quiescent current of 50 uA.

Supervisors Feature Summary

• Dual-channel monitoring for simultaneous supervision of two distinct voltage rails
• Integrated manual reset capability allowing user-initiated system resets
• Low power consumption suitable for battery-operated applications
• Fixed threshold options eliminating external resistor network requirements

Supervisors Applications

• Embedded systems requiring dual power rail supervision
• Microcontroller-based designs needing reliable power-on reset sequences
• Industrial control units with strict voltage stability requirements
• Consumer electronics utilizing multiple voltage domains

Supervisors Procurement Notes

Verify specific suffix codes such as DS, U, or S+ to confirm package type and manufacturing revision. Confirm RoHS compliance status as older variants may not meet current environmental standards. Check manufacturer lifecycle notices for end-of-life declarations since many DS1834 variants are discontinued. Ensure manual reset pin compatibility with your system's pushbutton interface design.

Supervisors Selection Notes

Select based on required package format including SOIC-8, uMAX-8, or PDIP-8 options. Verify that the fixed 3.3 V and 5 V thresholds align with your target power supply levels. Consider the reset delay characteristics to ensure proper timing relative to your microcontroller startup sequence. Evaluate thermal performance if operating near maximum temperature limits.

Supervisors Part Context

The DS1834 belongs to Maxim Integrated's EconoReset series designed for cost-sensitive applications. It simplifies power management by integrating dual supervisors into a single compact package. The family emphasizes ease of use through fixed thresholds and minimal external components. This approach reduces board space and design complexity compared to programmable alternatives.

Supervisors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult Analog Devices official resources for current equivalent recommendations.