CAT1641WI25

Supervisors Overview

The CAT1641WI25 is a voltage supervisory circuit manufactured by onsemi, designed for CPU monitoring applications. It features an active high and open drain output type with manual reset capability. The device operates within a supply voltage range up to a maximum of 5.5 V and supports threshold voltages of 3 V, 3.3 V, and 5 V. It includes a reset delay time of 270 ms and monitors one input. The component is housed in an 8-SOIC surface mount package and functions reliably across a temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Provides voltage supervision with active high and open drain outputs
• Includes manual reset functionality for system control
• Supports multiple threshold voltage options including 3 V, 3.3 V, and 5 V

Supervisors Applications

• CPU monitoring circuits
• Voltage supervision in embedded systems
• Power management IC applications

Supervisors Procurement Notes

Verify the exact suffix 'WI25' against official onsemi documentation to confirm the specific package variant and electrical characteristics. Ensure compatibility with existing board layouts for the 8-SOIC form factor. Confirm that the specified threshold voltages meet the design requirements for the monitored rail. Check for any end-of-life notices or alternative part recommendations from the manufacturer.

Supervisors Selection Notes

Select this component when a single-channel supervisor with both active high and open drain outputs is required. The 8-SOIC package suits surface-mount designs needing compact footprints. Verify that the 270 ms reset delay aligns with the target processor's power-up sequence timing. Ensure the operating temperature range covers the intended environmental conditions.

Supervisors Part Context

This part belongs to the CAT1641 series of voltage supervisors from onsemi. The series offers various threshold voltages and package options to accommodate different system requirements. The CAT1641WI25 specifically denotes the 8-SOIC surface-mount variant with defined electrical parameters for industrial and commercial applications.

Supervisors Replacement Considerations

Check for direct pin-to-pin replacements within the CAT1641 family with different suffixes. Verify if other manufacturers offer compatible supervisors with similar output configurations and reset delays.