LTC690IS8#TRPBF

Supervisors Overview

The LTC690IS8#TRPBF is a microprocessor supervisory circuit manufactured by Analog Devices Inc. It provides power supply monitoring and battery control functions for microprocessor reset, battery backup, CMOS RAM write protection, power failure warning, and watchdog timing. The device features a precise internal voltage reference and comparator circuit to monitor the power supply line. It operates within a temperature range of -55°C to +125°C and utilizes an 8-SOIC package.

Supervisors Feature Summary

• Provides complete power supply monitoring and battery control functions
• Features a precise internal voltage reference and comparator circuit
• Supports microprocessor reset, battery backup, and watchdog timing

Supervisors Applications

• Microprocessor reset circuits
• Battery backup systems
• CMOS RAM write protection
• Power failure warning systems
• Watchdog timing applications

Supervisors Procurement Notes

Verify the specific suffix #TRPBF indicates tape-and-reel packaging when ordering. Confirm the operating temperature range and package type match the design requirements. Ensure compatibility with the target voltage threshold and output configuration for the intended supervisory application.

Supervisors Selection Notes

Select this component for applications requiring reliable power supply monitoring in harsh environments due to its wide operating temperature range. Consider the open-drain or open-collector output capability for flexible interface options with various logic families. Evaluate the need for specific reset timeout characteristics and voltage thresholds during the design phase.

Supervisors Part Context

This part belongs to the LTC690 family of microprocessor supervisory circuits from Analog Devices. The family includes variants such as LTC690, LTC691, LTC694, and LTC695, offering comprehensive power management solutions. These devices are designed to ensure system stability by monitoring critical power rails and initiating appropriate responses to out-of-tolerance conditions.

Supervisors Replacement Considerations

Check for pin-compatible alternatives within the same family, such as the LTC690IS8#PBF for tube packaging. Verify if other series members like LTC691 offer different threshold voltages or additional features that might better suit the specific application requirements.