CAT1641WI-42-T3

Supervisors Overview

The CAT1641WI-42-T3 is a voltage supervisory circuit manufactured by onsemi, designed for CPU monitoring applications. It operates within a supply voltage range of 3 V to 5.5 V and features a reset delay time of 270 ms. The device monitors a single input with threshold voltages of 3 V, 3.3 V, and 5 V, alongside an overvoltage threshold of 4.5 V. It provides Active High and Open Drain outputs and includes manual reset functionality without a watchdog timer or battery backup switch. Operating temperatures span from -40°C to +85°C, and it is housed in an SOIC-8 package.

Supervisors Feature Summary

• Provides voltage supervision for CPU systems with configurable threshold options.
• Features manual reset capability with active high and open drain output types.
• Includes overvoltage detection at 4.5 V for comprehensive power monitoring.

Supervisors Applications

• CPU voltage monitoring
• Voltage supervisory circuits
• Power management ICs

Supervisors Procurement Notes

Verify component authenticity through authorized channels as the part status is listed as obsolete. Confirm RoHS compliance details directly with the manufacturer or distributor documentation. Check for specific regional sales restrictions before procurement planning. Ensure the SOIC-8 package variant matches design requirements. Validate that the 270 ms reset delay aligns with system timing constraints.

Supervisors Selection Notes

Select this component for applications requiring simple voltage supervision with manual reset control. Consider the 270 ms reset delay when designing startup sequences. Verify that the 3 V to 5.5 V operating range suits the target power rail. The absence of a watchdog timer may necessitate external solutions if software fault protection is required. Evaluate the SOIC-8 package size against available PCB space.

Supervisors Part Context

This component belongs to the CAT1641 series of supervisory circuits from onsemi. It is categorized under PMIC - Power Management ICs. The series typically offers various threshold options and package configurations to support different embedded system requirements. Related parts in the family may include variants with different thresholds or packages such as TSSOP-8.

Supervisors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided data. Cross-reference with other CAT1641 variants like CAT1641WI-30-G or CAT1641YI-42-GT3 only after verifying electrical parameter compatibility and package differences.