CAT1641LI-45-G

Supervisors Overview

The CAT1641LI-45-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 a threshold voltage of 4.5 V with an overvoltage threshold of 4.75 V. The device provides an active high, open drain output and includes manual reset functionality without a watchdog timer or battery backup switch. It has a reset delay time of 270 ms and consumes 3 mA of operating current. The component is housed in an 8-pin PDIP package, supports through-hole mounting, and functions across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Provides voltage supervision with active high open drain output for reliable signal interfacing
• Includes manual reset capability allowing user-initiated system recovery
• Operates within standard industrial temperature ranges for robust environmental performance

Supervisors Applications

• CPU power supply monitoring
• Voltage supervision in embedded systems
• Manual reset control circuits

Supervisors Procurement Notes

Verify component status as the part may be obsolete or discontinued. Confirm availability through authorized distributors or factory special orders. Check RoHS compliance details and ensure the PDIP-8 package matches design requirements. Validate electrical parameters against current design specifications before procurement.

Supervisors Selection Notes

Select this component for applications requiring a 4.5 V threshold with active high output. Ensure the 3 V to 5.5 V input range aligns with the system power rail. Consider the 270 ms reset delay and lack of watchdog features when designing the timing sequence. Verify that the through-hole PDIP-8 package fits the PCB layout constraints.

Supervisors Part Context

This part belongs to the CAT1641 series of voltage supervisory circuits from onsemi. It shares similarities with other parts in the family but is distinguished by its specific 4.5 V threshold and active high output configuration. The series is categorized under PMIC - Power Management ICs and serves as a simple reset generator for digital logic systems.

Supervisors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Users should consult official onsemi resources for potential cross-references or newer generation alternatives.