CAT824TSDI-GT3

Supervisors Overview

The CAT824TSDI-GT3 is a system supervisory voltage reset circuit manufactured by onsemi. It operates within a supply voltage range up to 5.5 V and features a fixed threshold voltage of 3.07 V. The device provides a push-pull output with active high and active low capabilities, ensuring reliable signal integrity. It includes a watchdog timer for monitoring system signals and maintains a reset output until the voltage reaches the specified trip value. The component supports a reset delay time of 200 ms and consumes only 6 uA of operating current. It is housed in a TSOT-23-5 surface-mount package and functions reliably across an industrial temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Integrates a watchdog timer to monitor system signals and issue resets upon timeout conditions
• Provides simultaneous active high and active low outputs for flexible interface compatibility
• Maintains reset state until monitored voltage exceeds the fixed trip threshold
• Operates with ultra-low quiescent current consumption for power-sensitive designs

Supervisors Applications

• Electronic systems requiring basic voltage supervision and reset generation
• Circuits needing watchdog functionality for signal integrity monitoring
• Industrial and automotive embedded systems operating in harsh environments

Supervisors Procurement Notes

Verify the specific suffix GT3 confirms tape-and-reel packaging if required for automated assembly. Confirm RoHS compliance status through official documentation as manufacturing processes may vary. Check for end-of-life notices or obsolescence warnings directly from onsemi before finalizing procurement plans. Ensure the TSOT-23-5 footprint matches your PCB layout constraints precisely.

Supervisors Selection Notes

Select this component when a fixed 3.07 V threshold is appropriate for the target supply rail. The dual active high/low output simplifies logic interfacing without additional inverters. Consider the 200 ms reset delay against system startup requirements. The low 6 uA current draw makes it suitable for battery-backed or energy-efficient applications compared to higher consumption alternatives.

Supervisors Part Context

This part belongs to the CAT824 series of system supervisory circuits designed by onsemi. The series focuses on providing essential reset and monitoring functions for electronic systems. Variants within the family differ primarily in threshold voltages and output configurations while sharing core supervisory and watchdog architectures.

Supervisors Replacement Considerations

Direct substitutes include other CAT824 variants with compatible thresholds such as CAT824STDI-GT3 or CAT824MTDI-GT3, provided the voltage levels match application needs. Cross-reference pinouts and package dimensions to ensure mechanical compatibility during replacement.