LTC690IS8#PBF

Supervisors Overview

The LTC690IS8#PBF is a microprocessor supervisory circuit manufactured by Analog Devices Inc. It operates within an industrial temperature range of -40°C to +85°C and is housed in an 8-SOIC surface-mount package. The device monitors a single voltage channel with a threshold of 4.65V, providing a low-active reset signal with a minimum timeout of 35ms. It features an open-drain or open-collector output configuration and supports simple reset and power-on reset functions for system protection.

Supervisors Feature Summary

• Provides complete power supply monitoring and battery control functions for microprocessor systems
• Integrates a precise internal voltage reference and comparator circuit for accurate supervision
• Generates reset signals upon detection of out-of-tolerance power supply conditions

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 against official Analog Devices documentation to confirm pinout compatibility and electrical specifications. Ensure the selected variant matches the required operating temperature range and package type for your design. Cross-reference the manufacturer part number with authorized distributors to confirm current availability status and lead times before finalizing procurement plans.

Supervisors Selection Notes

Select this component when a dedicated supervisory circuit is required for monitoring a single power rail at 4.65V. The open-drain output allows for flexible interfacing with various logic families. Consider the 35ms minimum reset timeout when designing system recovery sequences. Verify that the 8-SOIC package dimensions fit the available PCB space constraints.

Supervisors Part Context

This component belongs to the LTC690 family, which includes devices like the LTC690/LTC691/LTC694/LTC695. These parts are designed to provide comprehensive power management supervision. The IS8 designation indicates the industrial temperature grade and SOIC-8 package format, distinguishing it from commercial variants or other package options within the same functional family.

Supervisors Replacement Considerations

Consult the official datasheet for direct pin-to-pin compatible alternatives within the LTC690 series. Verify that any substitute maintains the 4.65V threshold and 35ms timeout requirements. Check for differences in output drive capability or temperature ranges if replacing with non-identical part numbers.