CAT1640WI-45-GT3

Supervisors Overview

The CAT1640WI-45-GT3 is a single-channel voltage supervisor IC manufactured by onsemi. It operates within a supply voltage range of 2.7 V to 5.5 V and features a fixed reset threshold voltage of 4.5 V. The device utilizes an open-drain output configuration and includes a manual reset input pin for system control. It is housed in an 8-SOIC package and supports industrial temperature operation from -40°C to +85°C.

Supervisors Feature Summary

• Provides reliable power monitoring with a fixed 4.5 V threshold for critical systems
• Includes a dedicated manual reset input allowing external control over the reset state
• Features an open-drain output compatible with various logic families

Supervisors Applications

• Portable equipment requiring low-voltage supervision
• Battery-powered consumer electronics
• Industrial control systems operating in harsh environments

Supervisors Procurement Notes

Verify the specific suffix GT3 indicates tape-and-reel packaging when ordering. Confirm the 4.5 V threshold matches the target application requirements. Ensure the SOIC-8 footprint aligns with the PCB design. Check for RoHS compliance documentation if required by regulatory standards. Validate that the open-drain output configuration suits the downstream circuitry interface needs.

Supervisors Selection Notes

Select this component when a fixed 4.5 V supervision level is necessary for single-channel monitoring. The manual reset feature offers flexibility for systems requiring external reset triggers. Consider the open-drain output for compatibility with pull-up resistors in mixed-voltage environments. The industrial temperature range makes it suitable for demanding operational conditions compared to commercial grade alternatives.

Supervisors Part Context

This part belongs to the CAT1640 series of voltage supervisors designed for simple, cost-effective power management solutions. It complements other onsemi PMIC offerings by providing essential reset functionality without complex communication interfaces. The series targets applications needing basic brown-out protection and manual reset capabilities in compact packages.

Supervisors Replacement Considerations

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