CAT823RSDI-GT3

Supervisors Overview

The CAT823RSDI-GT3 is a system supervisory voltage reset circuit manufactured by onsemi. It operates within a supply voltage range of 1.7 V to 5.5 V and features a fixed threshold voltage of 2.63 V for monitoring power rails. The device provides active high, active low, and push-pull output configurations. It integrates a watchdog timer with a timeout period of approximately 200 ms and includes a manual reset input. The component is housed in a TSOT-23-5 surface-mount package and supports an operating temperature range from -40 °C to +85 °C.

Supervisors Feature Summary

• Integrates a watchdog timer with automatic kick functionality to prevent system lockups
• Provides multiple output options including active high, active low, and push-pull signals
• Includes a dedicated manual reset input pin for user-initiated system resets
• Features a fixed voltage threshold for reliable power supply supervision

Supervisors Applications

• Portable battery-powered equipment requiring low standby current
• Microprocessor-based systems needing brown-out detection
• Consumer electronics utilizing single-supply architectures
• Industrial control boards requiring watchdog protection

Supervisors Procurement Notes

Verify the specific suffix RSDI against the official datasheet to confirm the exact output configuration and package type. Confirm RoHS compliance status as per the latest manufacturer documentation. Check for obsolescence notices or lifecycle changes directly from onsemi before finalizing procurement plans.

Supervisors Selection Notes

Select this component when a fixed 2.63 V threshold is required for voltage supervision. Ensure the application benefits from the integrated watchdog timer and manual reset capability. Verify that the TSOT-23-5 package fits the available PCB space. Compare power consumption requirements against other supervisory circuits if ultra-low quiescent current is critical.

Supervisors Part Context

This part belongs to the CAT823 family of supervisory circuits designed for voltage monitoring and reset generation. The family typically includes variants with different thresholds and output types. The CAT823 series is engineered for applications requiring reliable system reset management under varying power conditions.

Supervisors Replacement Considerations

Consult the official onsemi cross-reference list for verified substitutes. Ensure any replacement matches the 2.63 V threshold and TSOT-23-5 package dimensions. Verify functional equivalence regarding watchdog timing and manual reset inputs.