LTC695CSW#PBF

Supervisors Overview

The LTC695CSW#PBF is a microprocessor supervisory circuit manufactured by Analog Devices (formerly Linear Technology). It provides complete power supply monitoring and battery control functions, including reset, watchdog timing, and voltage supervision. The device features an open-drain output with a low-active reset signal. It monitors a single voltage threshold of 4.65V and includes a minimum reset timeout of 35ms. Operating within a temperature range of -55°C to 125°C, it is housed in a 16-SOIC package.

Supervisors Feature Summary

• Provides comprehensive power supply monitoring and battery backup control for microprocessor systems
• Integrates precise internal voltage reference and comparator circuits for accurate supervision
• Delivers active-low reset signals with configurable watchdog timer functionality

Supervisors Applications

• Microprocessor reset generation in embedded systems
• Battery backup circuitry management
• CMOS RAM write protection applications
• Power failure warning systems

Supervisors Procurement Notes

Verify the suffix #PBF indicates lead-free compliance and RoHS adherence. Confirm the SOIC-16 package dimensions match the design footprint. Ensure the 4.65V threshold aligns with the target system voltage requirements. Check that the operating temperature range covers the intended environmental conditions.

Supervisors Selection Notes

Select this component when a fixed 4.65V threshold is required for system supervision. Consider the open-drain output capability for flexible logic level interfacing. Evaluate the 35ms minimum timeout against system startup requirements. Verify compatibility with the specific microprocessor reset input specifications.

Supervisors Part Context

This part belongs to the LTC690 family of supervisory circuits, which includes variants like the LTC690, LTC691, LTC694, and LTC695. These devices share common functionalities such as power monitoring and watchdog timers but differ in thresholds and package options. The LTC695 specifically offers the 4.65V threshold option within this family.

Supervisors Replacement Considerations

Direct substitutes include other members of the LTC690 family such as the LTC690 or LTC691, provided their specific voltage thresholds and package types are compatible with the existing design constraints.