CAT1640LI-30

Supervisors Overview

The CAT1640LI-30-G 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 an under-voltage threshold of 3 V with an over-voltage threshold of 3.15 V. The device provides a manual reset function with a fixed reset delay time of 270 ms. It utilizes an active low, open drain output type and consumes a working power current of 3 mA. The component is housed in a PDIP-8 package suitable for through-hole installation and supports a maximum power dissipation of 1 W.

Supervisors Feature Summary

• Provides single-input voltage supervision with manual reset capability
• Features active low open drain output configuration
• Includes fixed 270 ms reset delay timing

Supervisors Applications

• CPU system monitoring
• Voltage supervision circuits
• Power management ICs

Supervisors Procurement Notes

Verify the exact part number suffix, as the provided data references CAT1640LI-30-G. Confirm availability status, as this specific model is listed as End-of-Life (EOL) or discontinued in current distributor records. Ensure compliance requirements such as RoHS are checked against the specific manufacturing batch documentation before integration into new designs.

Supervisors Selection Notes

Select this component when a through-hole solution is required for 3 V systems. Compare against surface mount variants like the WI series if PCB space is limited. Verify that the 3 V threshold aligns with the target logic levels and that the 270 ms delay meets system startup timing requirements without additional external components.

Supervisors Part Context

This part belongs to the CAT1640 series of supervisory circuits from onsemi. It shares functional similarities with other models in the family but differs in package type and specific voltage thresholds. The LI suffix indicates the PDIP-8 through-hole package, distinguishing it from the SOIC-8 surface mount versions available in the same product line.

Supervisors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material. As the component is marked as End-of-Life, consult manufacturer documentation for direct replacements or evaluate alternative supervisory circuits with compatible voltage thresholds and package styles.