CAT1640YI-45-T3

Supervisors Overview

The CAT1640YI-45-T3 is a voltage supervisory circuit manufactured by onsemi, designed for monitoring power supply integrity in electronic systems. It operates within a supply voltage range of 2.7 V to 5.5 V and features a fixed threshold voltage of 4.5 V with an overvoltage detection limit at 4.75 V. The device provides manual reset functionality and utilizes an open collector/drain output type. Packaged in an 8-TSSOP surface-mount format, it supports industrial temperature ranges from -40°C to +85°C. This component integrates essential supervision capabilities into a compact form factor suitable for space-constrained designs.

Supervisors Feature Summary

• Integrates voltage supervision with manual reset capability for system control
• Features open collector or drain output configuration for flexible interfacing
• Supports surface-mount installation in compact 8-TSSOP packages

Supervisors Applications

• CPU power supply monitoring in embedded systems
• Voltage supervision for microcontroller units
• Industrial control board power integrity checks

Supervisors Procurement Notes

Verify component authenticity through authorized channels as this part may be obsolete. Confirm package variant matches design requirements since suffixes indicate specific tape-and-reel packaging configurations. Check current lifecycle status before finalizing procurement plans due to potential discontinuation risks associated with older generation supervisor ICs.

Supervisors Selection Notes

Select this component when a fixed 4.5V threshold is required for standard 5V logic systems. Consider the manual reset feature if external push-button intervention is needed during fault conditions. Ensure the open-drain output compatibility aligns with downstream logic levels. Evaluate thermal performance within the specified operating temperature range for industrial environments.

Supervisors Part Context

This device belongs to the CAT1640 series of supervisory circuits from onsemi. These components are engineered for reliable power management in digital systems. The series typically offers various threshold options and package types to accommodate different design constraints while maintaining consistent supervision performance across industrial and commercial applications.

Supervisors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify equivalent specifications with alternative supervisor ICs if this obsolete part requires replacement.