CAT824STDI-GT3

Supervisors Overview

The CAT824STDI-GT3 is a system supervisory voltage reset circuit manufactured by onsemi. It monitors a single power supply input and provides a push-pull output that can be configured as active high or active low. The device includes an integrated watchdog timer with a manual reset capability, ensuring system reliability through hardware-based monitoring. It operates within a supply voltage range of 1.2 V to 5.5 V and features a fixed threshold voltage of 4.38 V. The component is housed in a TSOT-23-5 surface-mount package and supports industrial operating temperatures from -40°C to +85°C.

Supervisors Feature Summary

• Integrated watchdog timer for system signal monitoring
• Configurable active high or active low reset output
• Manual reset pin for external control

Supervisors Applications

• Embedded systems requiring voltage supervision
• Microcontroller reset circuits
• Industrial control boards

Supervisors Procurement Notes

Verify the specific suffix STDI against the manufacturer's current datasheet to confirm the exact threshold voltage and package variant. Ensure compatibility with the target PCB footprint for the TSOT-23-5 package. Confirm RoHS compliance status if required by local regulations. Check for any obsolescence notices or lifecycle changes directly from onsemi before finalizing procurement plans.

Supervisors Selection Notes

Select this component when a fixed 4.38 V threshold is required for the monitored rail. The inclusion of a manual reset pin distinguishes it from variants lacking this feature. Consider the TSOT-23-5 package size constraints relative to available board space. Verify that the push-pull output drive capability meets the load requirements of the connected logic inputs.

Supervisors Part Context

This part belongs to the CAT824 family of supervisory circuits, which also includes variants like CAT823 and CAT825. These devices share similar core functionalities but differ in threshold voltages, package options, and the presence of specific features such as watchdog timers or manual resets. The CAT824 series is designed for general-purpose voltage monitoring in electronic systems.

Supervisors Replacement Considerations

Direct substitutes include other CAT824 variants with matching threshold voltages and packages, such as CAT824MTDI-GT3, provided the output configuration and manual reset requirements align. Cross-reference with CAT823 or CAT825 models only if the specific feature set matches the application needs.