CAT824YTDI-GT3

Supervisors Overview

The CAT824YTDI-GT3 is a voltage supervisory circuit manufactured by onsemi, designed for system monitoring and reset generation. 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 device provides active high, active low, and push-pull output configurations in a TSOT-23-5 package. Key electrical parameters include a reset delay time of 200 ms, a watchdog timer function, and a maximum power dissipation of 571 mW. It supports manual reset functionality and operates across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Provides basic reset and monitoring functions for electronic systems by maintaining the reset output until the monitored voltage reaches the specified trip value.
• Includes an internal timer that maintains the reset output active condition for a minimum duration to allow the system power supply to stabilize.
• Features a watchdog input capable of monitoring system signals and issuing a reset if the signal fails to change state prior to timeout.

Supervisors Applications

• Electronic system voltage supervision
• Processor supervisor circuits
• Power supply management

Supervisors Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and halogen-free certification as indicated in official documentation. Check current lifecycle status, as end-of-life notifications may affect long-term availability. Ensure packaging specifications match design requirements for surface-mount installation.

Supervisors Selection Notes

Select this component when a fixed 4.38 V threshold is required for system voltage monitoring. Consider the TSOT-23-5 package for space-constrained designs. Evaluate the need for watchdog functionality and specific output types (active high/low/push-pull). Verify operating temperature range compatibility with the target application environment.

Supervisors Part Context

The CAT824 series includes variants like CAT823 and CAT825, offering similar supervisory functions with different thresholds or features. This part belongs to onsemi's standard product portfolio, focusing on reliable power management solutions for industrial and consumer electronics. The GT3 suffix typically indicates tape and reel packaging for automated assembly processes.

Supervisors Replacement Considerations

Check for direct pin-to-pin replacements within the CAT824 family with adjusted thresholds. Verify functional equivalence regarding watchdog capabilities and output drive strength. Ensure thermal performance and package dimensions are compatible with existing board layouts.