CAT1026LI-25-G

Supervisors Overview

The CAT1026LI-25-G is a voltage supervisory circuit manufactured by onsemi, designed to monitor system power integrity. It operates within a supply voltage range of 2.7 V to 5.5 V and features a threshold voltage of 2.5 V. The device includes an under-voltage threshold of 2.55 V and an over-voltage threshold of 2.7 V. It supports a single monitored input with no manual reset or watchdog timer capabilities. The component functions reliably across an operating temperature range from -40°C to +85°C, consuming a typical supply current of 3 mA.

Supervisors Feature Summary

• Provides continuous voltage supervision for microcontrollers and memory systems
• Integrates hardware-based data protection to prevent inadvertent EEPROM writes during low voltage conditions
• Features open-drain reset outputs compatible with active high or low logic configurations

Supervisors Applications

• CPU system monitoring in industrial control units
• Power management for portable electronic devices
• Voltage supervision in automotive electronics applications

Supervisors Procurement Notes

Verify the specific package variant and manufacturing date code against the latest distributor listings. Confirm RoHS compliance status and ensure the supplier provides valid traceability documentation. Check for any recent product change notices regarding pinout or electrical characteristics before finalizing procurement orders.

Supervisors Selection Notes

Select this component when a fixed 2.5 V supervisory threshold is required for 3V or 5V systems. Ensure the through-hole PDIP-8 package fits the mechanical constraints. Verify that the absence of a watchdog timer meets the software reliability requirements of the target application design.

Supervisors Part Context

This part belongs to the CAT1026 series of dual voltage supervisory circuits with integrated I2C serial EEPROM. The series combines power management monitoring with non-volatile storage capabilities. The LI suffix indicates a through-hole PDIP package option, distinguishing it from surface-mount variants like SOIC or MSOP within the same functional family.

Supervisors FAQ

Does the CAT1026LI-25-G include a manual reset button?

No, the datasheet specifications indicate that this component does not support manual reset functionality.

What is the maximum operating supply voltage for this device?

The maximum operating supply voltage is specified as 5.5 V.