DS1834S

Supervisors Overview

The DS1834S+ is a dual-channel voltage supervisory circuit manufactured by Analog Devices / Maxim Integrated. It operates within a supply voltage range of 1.2 V to 5.5 V and features two monitored inputs with threshold voltages of 3.3 V and 5 V. The device provides active low, open-drain outputs and includes a manual reset input. Key electrical parameters include a reset delay time of 350 ms, an operating current of 50 uA, and an accuracy of 2.5%. It supports power failure detection and functions across a temperature range of -40 C to +85 C.

Supervisors Feature Summary

• Dual-channel voltage monitoring with dedicated thresholds for 3.3 V and 5 V systems
• Integrated manual reset capability via pushbutton interface
• Power failure detection functionality for system integrity
• Low quiescent current consumption suitable for battery-operated applications

Supervisors Applications

• Portable electronic devices requiring dual voltage supervision
• Battery-powered systems needing power failure detection
• Embedded circuits utilizing manual reset controls
• Industrial equipment operating in extended temperature ranges

Supervisors Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and specific suffix designations against official datasheets. Check current availability as supply may be limited or restricted in certain regions. Ensure packaging type matches project requirements prior to ordering.

Supervisors Selection Notes

Select this component when dual independent voltage monitoring is required alongside manual reset functionality. Consider the 350 ms reset delay and 2.5% accuracy specifications for timing-sensitive designs. Evaluate the SOIC-8 package dimensions for PCB layout compatibility. Assess the 50 uA operating current against total system power budgets.

Supervisors Part Context

The DS1834 series belongs to Maxim Integrated's EconoReset family of supervisory circuits. These devices are designed to provide reliable power management for microprocessor-based systems. The S+ suffix indicates a lead-free, halogen-free variant compliant with environmental standards. This part represents a compact solution for multi-rail voltage monitoring.

Supervisors Replacement Considerations

DS1834AU+ offers identical electrical characteristics in a uMAX-8 package. DS1834DS+ provides the same functionality in an SOIC-8 package. DS1834U is available in uMAX-8 but features a 500 ms reset delay instead of 350 ms.