LTC694CS8-3.3#PBF

Supervisors Overview

The LTC694CS8-3.3#PBF is a voltage supervisory circuit manufactured by Analog Devices Inc., housed in an SOIC-8 surface-mount package. It operates within a supply voltage range of 3 V to 5.5 V and features a fixed threshold voltage of 4.65 V with 2% accuracy. The device provides CMOS output and includes integrated watchdog timer, battery backup switch, and power-fail detection capabilities. It supports chip enable functionality and offers a reset delay time of 200 ms. Operating temperatures range from 0°C to +70°C, with a typical operating supply current of 600 µA.

Supervisors Feature Summary

• Integrated watchdog timer for system reliability monitoring
• Battery backup switch capability for seamless power transition management
• Power-fail detection feature for voltage anomaly alerting
• Chip enable signal support for low-power state control

Supervisors Applications

• Microprocessor power supply supervision
• Watchdog timer implementation in embedded systems
• Battery backup switching circuits
• Power-fail detection logic

Supervisors Procurement Notes

Verify the exact part number including the suffix #PBF to ensure lead-free compliance and correct package variant. Confirm the specific voltage threshold version matches design requirements, as other variants exist. Check manufacturer documentation for any recent product change notifications or obsolescence notices before finalizing procurement plans.

Supervisors Selection Notes

Select this component when a fixed 4.65 V threshold is required for supervising 5 V logic systems. Consider the SOIC-8 package constraints and thermal performance for your PCB layout. Evaluate the 600 µA operating current against system power budgets. Ensure the 200 ms reset delay aligns with microprocessor startup timing requirements.

Supervisors Part Context

This part belongs to the LTC694 series of dual-channel power supply management circuits. While the base LTC694 offers two channels, the CS8-3.3#PBF variant specifically implements the supervisory functions with a fixed 3.3 V related threshold configuration (4.65 V trip point). It is part of Analog Devices' portfolio of precision analog and mixed-signal ICs designed for robust power management applications.

Supervisors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Verify compatibility with alternative supervisory circuits based on threshold voltage, package type, and functional requirements such as watchdog and reset delay specifications.