CAT803TSDI-GT3

Supervisors Overview

The CAT803TSDI-GT3 is a voltage supervisory circuit manufactured by onsemi, designed to monitor power supply integrity in electronic systems. It operates within a maximum supply voltage of 5.5 V and features an active low open-drain output. The device provides a fixed reset delay time of 240 ms to ensure stable system initialization. It supports threshold voltages including 2.5 V, 3 V, 3.3 V, and 5 V, with a specific overvoltage threshold of 4.7 V for the SDI variant. The component consumes 20 uA of operating current and functions reliably across a temperature range of -40 C to +85 C. It is housed in a compact SC-70-3 surface-mount package.

Supervisors Feature Summary

• Provides hardware-based power supply monitoring with active low open-drain output signaling
• Ensures system stability through a fixed 240 ms reset delay time during power transitions
• Detects overvoltage conditions with a dedicated threshold mechanism

Supervisors Applications

• Embedded system power management
• Microcontroller reset circuits
• Portable electronic devices

Supervisors Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for end-of-life notifications prior to integration. Ensure the SC-70-3 package dimensions match the target PCB footprint requirements.

Supervisors Selection Notes

Select this component when a simple, low-power supervisor is required for single-channel voltage monitoring. Consider the fixed 240 ms delay and available threshold options against system startup timing requirements. Evaluate the SC-70-3 package size constraints relative to other available packages in the CAT803 series.

Supervisors Part Context

This part belongs to the CAT803 series of voltage supervisors from onsemi. The series offers various threshold voltages and package options to suit different design needs. The CAT803TSDI-GT3 specifically utilizes the SC-70-3 package and includes overvoltage detection capabilities alongside standard under-voltage supervision.

Supervisors Replacement Considerations

Consult official cross-reference data for verified substitutes. Verify pinout compatibility and electrical parameter alignment before substitution.