CAT1027YI-25-GT3

Supervisors Overview

The CAT1027YI-25-GT3 is a multi-voltage supervisor integrated circuit manufactured by onsemi. It features two monitored inputs with an adjustable voltage threshold ranging from 2.55V to 2.7V. The device provides an active-low reset output via open drain or open collector configuration. It includes a manual reset capability and incorporates a watchdog timer for system protection. The component operates within a temperature range of -40°C to +85°C and is housed in an 8-TSSOP package.

Supervisors Feature Summary

• Dual input voltage monitoring with adjustable thresholds
• Integrated watchdog timer functionality
• Manual reset input support
• Active-low reset signal output

Supervisors Applications

• CPU supply supervision
• Embedded system power management
• Industrial control unit monitoring

Supervisors Procurement Notes

Verify the specific suffix GT3 indicates tape and reel packaging when sourcing. Confirm the manufacturer part number matches exactly, as variations exist within the CAT1027 family. Check current availability status as components may be subject to obsolescence notices. Ensure compatibility with existing board layouts regarding the 8-TSSOP footprint.

Supervisors Selection Notes

Select this component when dual voltage monitoring is required alongside watchdog protection. The adjustable threshold allows customization for specific rail voltages. Consider the TSSOP package size for space-constrained designs. Verify that the open-drain output interface aligns with the target microcontroller reset pin requirements.

Supervisors Part Context

This part belongs to the CAT1027 series of supervisory circuits designed for reliable system monitoring. It integrates EEPROM capabilities in some variants, though this specific model focuses on supervision functions. The series is intended for applications requiring robust power management and fault detection in electronic systems.

Supervisors Replacement Considerations

CAT1027WI-25-GT3 offers similar supervision features but utilizes a SOIC-Wide-8 package instead of TSSOP. CAT1027UE-25 provides single-input monitoring with different thermal characteristics. Verify pinout compatibility and package dimensions before substituting.