CAT824MTDI-GT3

Supervisors Overview

The CAT824MTDI-GT3 is a system supervisory voltage monitor manufactured by onsemi, designed to provide basic reset and monitoring functions for electronic systems. It features a fixed trip value of 4.38 V and an overvoltage threshold of 4.5 V. The device operates within a supply voltage range of 1.2 V to 5.5 V and consumes a typical operating current of 6 uA. It includes a watchdog timer with a minimum delay of 140 ms to allow power supply stabilization. The reset delay time is specified at 200 ms. The component supports active high, active low, and push-pull output types and is housed in a TSOT-23-5 package.

Supervisors Feature Summary

• Provides basic reset and monitoring functions for electronic systems by maintaining a reset output until the system voltage reaches the specified trip value.
• Features a watchdog input circuit that monitors system signals and issues a reset if the signal fails to change state prior to timeout.
• Maintains the reset output active condition until the internal timer completes its cycle, allowing the system power supply to stabilize.

Supervisors Applications

• System voltage supervision in embedded electronics
• Processor supervisor circuits requiring stable power-up sequences
• Monitoring applications utilizing watchdog timer functionality

Supervisors Procurement Notes

Verify the specific suffix GT3 corresponds to the reel packaging format as indicated in distributor records. Confirm the 4.38 V trip voltage aligns with the target system requirements. Check the status of the component regarding obsolescence notices, as some listings indicate end-of-life status. Ensure the TSOT-23-5 package dimensions fit the intended PCB layout constraints.

Supervisors Selection Notes

Select this component when a fixed 4.38 V threshold is required for system supervision. Consider the 6 uA operating current for low-power designs. The inclusion of a watchdog disable circuit allows flexibility in managing system reset conditions. Verify compatibility with the desired output configuration, as the device supports multiple output types including active high, active low, and push-pull.

Supervisors Part Context

The CAT824 series from onsemi provides essential reset and monitoring capabilities for electronic systems. This specific model, CAT824MTDI-GT3, focuses on a 4.38 V trip value. The series generally offers configurable thresholds and watchdog features to ensure reliable system operation under varying voltage conditions.

Supervisors Replacement Considerations

Consult official onsemi documentation for direct replacements. Cross-reference similar CAT824 variants with different trip voltages if the 4.38 V threshold is not suitable. Verify pinout and package compatibility before substituting with other supervisory circuits.