CAT825STDI-GT3

Supervisors Overview

The CAT825STDI-GT3 is a system supervisory circuit manufactured by onsemi, designed to monitor voltage levels in electronic systems. It operates within a supply voltage range of 1.2 V to 6 V and functions across an industrial temperature range from -40°C to +85°C. The device features a manual reset input and includes a watchdog timer for enhanced system reliability. Packaged in a compact SC-70-5 surface-mount format, it provides accurate under-voltage monitoring and brownout detection for microprocessor-based applications.

Supervisors Feature Summary

• Provides automatic microprocessor restart following power failure events
• Includes a manual reset input for external override capabilities
• Features a watchdog timer to monitor system signal integrity
• Delivers accurate under-voltage monitoring and brownout detection

Supervisors Applications

• Microprocessor and microcontroller based systems
• Intelligent instruments and control systems
• Critical microprocessor monitors
• Portable equipment requiring reliable power supervision

Supervisors Procurement Notes

Verify the specific suffix STDI corresponds to the SC-70-5 package variant when sourcing replacements. Confirm that the manual reset and watchdog functionalities align with the target design requirements. Ensure compatibility with the intended operating voltage range of 1.2 V to 6 V. Check for RoHS compliance status if environmental regulations apply to the final assembly process.

Supervisors Selection Notes

Select this component for designs requiring integrated voltage supervision with manual reset and watchdog features. It serves as a pin-compatible alternative to MAX823/24/25 products. Consider the SC-70-5 package size for space-constrained portable applications. Validate that the 140 ms minimum timer duration meets the stabilization requirements of the associated power supply.

Supervisors Part Context

This part belongs to the CAT823, CAT824, and CAT825 family of system supervisory circuits. These devices provide basic reset and monitoring functions for electronic systems. The family is characterized by its ability to maintain a reset output until the system voltage reaches a specified trip value. They are designed to allow power supplies to stabilize before releasing the reset condition.

Supervisors Replacement Considerations

The CAT825STDI-GT3 is pin and function compatible with MAX823, MAX824, and MAX825 products from Maxim Integrated. Designers may substitute these parts directly without schematic changes. Verify that the replacement part maintains the same SC-70-5 package and electrical characteristics.