DS1836BS-5+

Supervisors Overview

The DS1836BS-5+ is a voltage supervisory circuit manufactured by Analog Devices Inc./Maxim Integrated, designed for monitoring system power integrity. It operates within a supply voltage range of 1.2 V to 5.5 V and features a threshold voltage of 4.37 V. The device provides a CMOS open-drain output with a reset delay time of 500 ms. It supports battery backup switching functionality and includes power-fail detection capabilities. The component is available in an 8-SOIC surface-mount package and functions as a MicroManager supervisory circuit.

Supervisors Feature Summary

• Monitors input voltage status and generates internal power-fail signals during out-of-tolerance conditions
• Automatically switches power source to a battery supply when the main input drops below the specified threshold
• Maintains active reset state for a defined duration after the input voltage returns to normal operating levels

Supervisors Applications

• Systems utilizing dual power supplies requiring seamless transition between primary and backup sources
• Microprocessor applications needing precise voltage supervision and automatic reset generation
• Embedded designs requiring low-current CMOS outputs for efficient power management

Supervisors Procurement Notes

Verify current availability status as this component may be subject to limited supply or discontinuation. Confirm that the specific suffix indicates the correct package type and temperature rating required for your design. Ensure compatibility with existing board layouts before procurement, as lead times and stock levels can vary significantly across distributors.

Supervisors Selection Notes

Select this component when a single-channel supervisor with battery backup switching is required. It is suitable for applications needing a fixed threshold near standard logic levels. Consider the 8-SOIC package constraints and ensure the 500 ms reset delay aligns with system startup requirements. Verify that the open-drain output configuration matches the downstream logic interface needs.

Supervisors Part Context

This part belongs to the DS1836 MicroManager series, which integrates voltage monitoring and power-switching functions into a single IC. The series is designed to reduce discrete component counts in systems operating with dual power supplies. It provides essential protection against brown-out conditions and ensures stable operation during power transitions.

Supervisors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.