CAT1641WI-45-GT3

Supervisors Overview

The CAT1641WI-45-GT3 is a single-channel voltage supervisory circuit manufactured by onsemi. It operates within a supply voltage range of up to 6 V and features a threshold voltage of 4.5 V with an overvoltage threshold of 4.75 V. The device provides a reset delay time of 270 ms and supports manual reset functionality. It includes an integrated watchdog timer and offers flexible output configurations, including active high, active low, and open drain options. Designed for surface mount installation, it is housed in an 8-SOIC package and functions reliably across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Integrates a watchdog timer for system monitoring
• Supports manual reset input capability
• Offers configurable output types including open drain

Supervisors Applications

• CPU voltage supervision
• Power management IC monitoring
• Embedded system reset generation

Supervisors Procurement Notes

Verify the specific suffix GT3 corresponds to the required tape and reel packaging configuration. Confirm that the 8-SOIC package dimensions align with the target PCB footprint. Ensure the operating environment remains within the specified -40°C to +85°C temperature range. Check for any regional distribution restrictions or obsolescence notices associated with this specific part number before finalizing procurement plans.

Supervisors Selection Notes

Select this component when a single-channel supervisor with watchdog functionality is required. The 4.5 V threshold suits applications powered by standard 5 V rails. Consider the open drain output option if interfacing with different logic voltage levels. Verify that the 270 ms reset delay meets the system startup timing requirements. Ensure the SOIC-8 package fits the available board space constraints.

Supervisors Part Context

This part belongs to the CAT1641 series of supervisory circuits from onsemi. These devices are designed to monitor power supply voltages and generate reset signals for microprocessors and digital systems. The series typically integrates watchdog timers and manual reset inputs to enhance system reliability. The CAT1641 variant specifically focuses on single-channel monitoring with flexible output options.

Supervisors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.