CAT824TTDI-GT3

Supervisors Overview

The CAT824TTDI-GT3 is a voltage supervisory circuit manufactured by onsemi, designed for system power management. It features a single monitored input with an undervoltage threshold of 3V and an overvoltage threshold of 3.15V. The device operates within a supply voltage range up to 5.5V and provides active high, active low, and push-pull output types. It includes a watchdog timer with a reset timeout of 140ms. The component functions in temperatures from -40°C to +85°C and is housed in a TSOT-23-5 package.

Supervisors Feature Summary

• Integrates voltage monitoring with undervoltage and overvoltage detection capabilities
• Includes a watchdog timer function to monitor system signal state changes
• Provides flexible output configurations including active high, active low, and push-pull modes

Supervisors Applications

• Electronic system power supply management
• Voltage supervision for embedded systems
• Watchdog monitoring for microcontroller-based circuits

Supervisors Procurement Notes

This component is classified as obsolete and has been discontinued by the manufacturer. Production has ceased, meaning new units are no longer available from official distribution channels. Engineers must verify current availability through secondary market sources if replacement is attempted. Design-in should be avoided for new products due to end-of-life status. Existing inventory may be limited or subject to higher costs. Verify authenticity carefully when sourcing from non-official distributors.

Supervisors Selection Notes

Due to the obsolete status of this part, alternative solutions should be prioritized for any new design implementations. When evaluating replacements, ensure that the substitute component matches the required voltage thresholds, package type, and functional requirements such as watchdog capability. Consider components from the same family or newer generations that offer similar supervisory features but remain in active production. Check datasheets for pin compatibility and electrical parameter alignment to minimize redesign efforts.

Supervisors Part Context

The CAT824 series belongs to onsemi's line of system supervisory voltage reset circuits. These devices provide basic reset and monitoring functions for electronic systems by maintaining a reset output until the monitored voltage reaches a specified trip value. The series typically includes variants with different thresholds and features like manual reset inputs or watchdog timers, catering to various power management needs in consumer and industrial applications.

Supervisors Replacement Considerations

Publicly confirmed substitutes include CAT824MTDI-GT3 and CAT824YTDI-GT3. These parts share the same series functionality and package style. Verify specific threshold voltages and output configurations against your design requirements before substitution.