CAT1027LI-28-G

Supervisors Overview

The CAT1027LI-28-G is a voltage supervisory circuit manufactured by onsemi, designed for CPU monitoring applications. It integrates a 2K-bit EEPROM with a watchdog timer and operates within a supply voltage range of 2.7 V to 5.5 V. The device features a threshold voltage of 2.8 V, an overvoltage threshold of 3 V, and an undervoltage threshold of 2.85 V. It supports manual reset functionality and monitors a single input. The component is housed in an SOIC-8 surface-mount package and is rated for operation between -40°C and +85°C.

Supervisors Feature Summary

• Integrates a 2K-bit EEPROM for data storage alongside voltage supervision
• Includes a built-in watchdog timer for system reliability
• Supports manual reset input for user-initiated control

Supervisors Applications

• CPU power supply monitoring
• Embedded system voltage supervision
• Industrial control unit protection

Supervisors Procurement Notes

Verify the specific suffix 'G' confirms RoHS compliance and lead-free status as per manufacturer documentation. Confirm the 'LI' designation aligns with the required industrial temperature range specifications. Ensure the SOIC-8 package footprint matches the target PCB design constraints before finalizing procurement orders.

Supervisors Selection Notes

Select this component when simultaneous voltage supervision and non-volatile data storage are required in a compact surface-mount form factor. The integrated watchdog timer simplifies firmware design for fault recovery. Verify that the 2.8 V threshold accurately matches the monitored rail's nominal operating voltage to prevent false triggering during normal operation.

Supervisors Part Context

This part belongs to the CAT1027 series of supervisory circuits from onsemi. These devices combine power management monitoring with serial EEPROM capabilities. The series typically offers various threshold voltages and package options to suit different embedded system requirements while maintaining low power consumption profiles.

Supervisors Replacement Considerations

Publicly confirmed substitute part numbers for CAT1027LI-28-G are not available in the provided source material.