CAT812LTBI-T3

Supervisors Overview

The CAT812LTBI-T3 is a microprocessor power supply supervisor manufactured by onsemi, designed to monitor voltage levels and ensure system reliability. It features an active low push-pull output and includes a manual reset function for user-initiated control. The device operates within a supply voltage range up to 5.5 V and offers a reset delay time of 240 ms. It is housed in a compact SOT-143-4 surface-mount package, suitable for space-constrained applications. The component supports threshold voltages of 2.5 V, 3 V, 3.3 V, and 5 V, with a quiescent current of 8 uA. It functions across an industrial temperature range from -40 C to +85 C.

Supervisors Feature Summary

• Provides active low push-pull output for robust signal driving capabilities
• Integrates a manual reset input allowing direct user control over the reset state
• Delivers a fixed 240 ms reset delay to ensure stable power-up sequencing

Supervisors Applications

• Microprocessor power supply supervision
• Embedded system voltage monitoring
• Industrial control unit reset management

Supervisors Procurement Notes

Verify the specific suffix against official documentation to confirm pinout and electrical characteristics, as variations may exist within the series. Confirm availability status through authorized channels, as distribution networks may list obsolete or discontinued inventory. Ensure the selected variant matches the required threshold voltage and package type for your design. Cross-reference the manufacturer part number with distributor catalogs to avoid counterfeit components. Validate RoHS compliance data prior to final procurement decisions.

Supervisors Selection Notes

Select this component when a push-pull output interface is required instead of open-drain configurations. The inclusion of a manual reset feature makes it suitable for systems needing external override capabilities. Consider the 8 uA quiescent current for battery-sensitive designs. Verify that the SOT-143-4 package fits the PCB layout constraints. Ensure the operating temperature range meets the environmental requirements of the target application.

Supervisors Part Context

This part belongs to the CAT812 series of microprocessor supervisors, which are designed for reliable voltage monitoring. The series typically offers various threshold options and output types to accommodate different system architectures. The CAT812LTBI-T3 specifically denotes the linear voltage version with a push-pull output and manual reset capability. It is part of onsemi's portfolio of power management integrated circuits aimed at enhancing system stability.

Supervisors Replacement Considerations

CAT812LTBI-GT3 is a verified substitute part number within the same product family.