CAT1026ZI-25-GT3

Supervisors Overview

The CAT1026ZI-25-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 2.5 V. The device monitors one input and includes an integrated 2k-bit CMOS EEPROM accessible via I2C serial interface. Key electrical parameters include a maximum power dissipation of 1 W and a quiescent current of 3 mA. It supports active high, active low, and open drain output types with a reset delay time of 200 ms. The component functions reliably across an operating temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Integrates dual voltage supervisory circuits with an I2C serial 2k-bit CMOS EEPROM for system monitoring and data storage.
• Provides flexible output configurations including active high, active low, and open drain options to suit various logic requirements.
• Features a manual reset capability allowing for controlled system recovery during supervisory events.

Supervisors Applications

• CPU voltage supervision in embedded systems
• Data logging using integrated EEPROM
• Industrial control system monitoring

Supervisors Procurement Notes

Verify the specific suffix GT3 indicates tape and reel packaging when ordering. Confirm RoHS compliance status through official datasheets or manufacturer declarations prior to integration. Ensure the MSOP-8 package dimensions match your PCB footprint requirements. Check for any recent product change notices that may affect pinout or electrical characteristics. Validate availability directly with onsemi authorized distributors as lead times vary.

Supervisors Selection Notes

Select this component when both voltage supervision and non-volatile data storage are required in a single package. The I2C interface simplifies board layout compared to parallel EEPROMs. Consider the 200 ms reset delay for timing-sensitive applications. The wide operating temperature range suits industrial environments. Verify that the 2.5 V threshold aligns with the monitored rail's minimum operating voltage.

Supervisors Part Context

This part belongs to the CAT1026 series of dual voltage supervisory circuits with integrated EEPROM. The series combines power management IC functionality with memory capabilities. It is categorized under PMIC - Power Management ICs. The ZI suffix typically denotes the MSOP-8 package variant. The 25 suffix specifies the 2.5 V threshold voltage version.

Supervisors Replacement Considerations

CAT1026ZI-25-T3: Same function and package but different packaging format (tray vs reel). CAT1026WI-28-GT3: Different threshold voltage (2.8 V) and SOIC-8 package. Verify electrical compatibility before substitution.