CAT1027WI-28-G

Supervisors Overview

The CAT1027WI-28-G is a voltage supervisory circuit manufactured by onsemi, designed for CPU monitoring applications. It features a single monitored input with a threshold voltage of 2.8 V and an overvoltage threshold of 3 V. The device operates within a supply voltage range of 2.7 V to 5.5 V and includes a watchdog timer function without manual reset capability. It is housed in an SOIC-8 surface-mount package and supports operation across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Integrated watchdog timer for system reliability
• Single-channel voltage supervision
• Surface-mount SOIC-8 packaging

Supervisors Applications

• CPU power supply monitoring
• Voltage supervisory circuits
• System reset generation

Supervisors Procurement Notes

Verify the specific suffix 'G' indicates RoHS compliance and lead-free status as per manufacturer documentation. Confirm the SOIC-8 tube packaging details against current distributor listings. Ensure the 2.8 V threshold matches the target application requirements before finalizing procurement orders.

Supervisors Selection Notes

Select this component when a single-channel supervisor with integrated watchdog functionality is required. The 2.8 V threshold suits systems operating near standard logic levels. The SOIC-8 package facilitates automated surface-mount assembly. Verify that the absence of a manual reset pin aligns with the system design constraints.

Supervisors Part Context

This part belongs to the CAT1027 series of supervisory circuits from onsemi. The series provides voltage monitoring solutions with varying thresholds and packages. The 'WI' designation typically indicates wide industrial temperature range and SOIC-8 packaging. The '28' specifies the 2.8 V threshold voltage variant within the product family.

Supervisors Replacement Considerations

CAT1027WI-25-T3 offers a similar form factor but with a different 2.5 V threshold voltage. CAT1027WI-28-G is the direct equivalent with identical electrical characteristics and packaging.