LTC1727ES8-5#PBF

Supervisors Overview

The LTC1727ES8-5#PBF is a micropower precision triple supply monitor from Analog Devices, housed in an 8-lead SOIC package. It features three independent voltage monitors with individual open-drain outputs and a common reset output. The device operates within a maximum supply voltage of 7 V and draws only 15 µA of quiescent current. It provides a fixed 200 ms reset delay time to ensure stable power-up sequencing. The component supports threshold voltages including 3.3 V and 5 V, making it suitable for systems requiring precise monitoring of multiple power rails.

Supervisors Feature Summary

• Provides independent supervision for three distinct power supply inputs via dedicated open-drain outputs
• Generates a system reset signal through a common open-drain output with a fixed 200 ms delay
• Designed for micropower applications with a low 15 µA operating supply current
• Supports precise monitoring thresholds including 3.3 V and 5 V options

Supervisors Applications

• Multi-rail power supply monitoring in embedded systems
• Voltage supervision for microprocessor and microcontroller boards
• Portable equipment requiring low quiescent current management

Supervisors Procurement Notes

Verify the specific suffix and package type against the original design specification, as the LTC1727 series includes variants with different threshold voltages and packages. Confirm availability status, as some distributors indicate limited supply or discontinuation for certain part numbers. Ensure the selected variant matches the required reset delay and input voltage range for the target application circuit.

Supervisors Selection Notes

Select this component when designing systems that require simultaneous monitoring of three separate voltage rails without external comparator circuits. The integrated reset delay simplifies power-up sequencing logic. Consider the 15 µA quiescent current for battery-operated designs. Verify that the open-drain output configuration aligns with the pull-up requirements of the downstream logic interface.

Supervisors Part Context

This part belongs to the LTC1727 family of micropower precision triple supply monitors. The ES8 designation indicates an industrial temperature range version in an 8-lead SOIC package. The #PBF suffix denotes lead-free compliance. The series is designed to replace discrete comparator solutions, offering higher accuracy and lower power consumption in a compact surface-mount form factor.

Supervisors Replacement Considerations

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