CAT1027ZI-28-GT3

Supervisors Overview

The CAT1027ZI-28-GT3 is a voltage supervisory circuit manufactured by onsemi, designed for CPU monitoring applications. It operates within a supply voltage range of 2.7 V to 5.5 V and features a threshold voltage of 2.8 V. The device monitors one input and includes an integrated watchdog timer. It utilizes an open collector/drain output type with a manual reset capability. Packaged in an 8-pin MSOP format, it supports surface mount installation and functions across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Integrates a watchdog timer for system reliability monitoring
• Provides manual reset functionality for controlled system recovery
• Features open collector or open drain output configuration

Supervisors Applications

• CPU voltage supervision in embedded systems
• Watchdog timer implementation in microcontroller circuits
• Manual reset control in industrial monitoring equipment

Supervisors Procurement Notes

Verify the specific suffix GT3 indicates tape and reel packaging when ordering. Confirm RoHS compliance status through official datasheets prior to integration. Ensure the MSOP-8 package dimensions match your PCB footprint requirements. Check for any recent product change notifications regarding pinout or electrical characteristics updates from onsemi before finalizing procurement specifications.

Supervisors Selection Notes

Select this component when a single-channel supervisor with manual reset and watchdog features is required. The 2.8 V threshold suits 3.3 V logic systems. Compare against CAT1027 variants with different thresholds if voltage levels differ. Verify that the MSOP-8 package fits the available board space. Consider current consumption specs relative to battery life requirements if applicable.

Supervisors Part Context

This part belongs to the CAT1027 series of supervisory circuits from onsemi. It shares functional similarities with other CAT1027 models but differs in threshold voltage and package options. The ZI suffix typically denotes specific package and temperature grade variations within the series. It serves as a dedicated power management IC for ensuring stable operation of digital logic components.

Supervisors Replacement Considerations

Direct substitutes include CAT1027ZI-28-T3 for similar MSOP-8 packaging with comparable electrical characteristics. Other CAT1027 family members may serve as alternatives if threshold voltages align with design needs. Verify pin compatibility and output drive capabilities before swapping with non-onsemi supervisors.