CAT853TTBI-GT3

Supervisors Overview

The CAT853TTBI-GT3 is a voltage supervisory circuit manufactured by onsemi, designed for monitoring power supplies in digital systems. It operates within a supply voltage range of 1.2 V to 5.5 V and features a threshold voltage of 3.08 V with an overvoltage threshold of 3.11 V. The device provides an active low, open-drain output and includes a reset delay time of 240 ms. It consumes 6 uA of operating current and is housed in a SOT-23-3 package. The component supports an industrial temperature range from -40 °C to +85 °C.

Supervisors Feature Summary

• Monitors power supply voltage levels to ensure system stability
• Generates reset signals when voltage falls below preset thresholds
• Features low quiescent current consumption for energy efficiency

Supervisors Applications

• Microprocessor power supply supervision
• Digital system voltage monitoring
• Battery-powered device protection

Supervisors Procurement Notes

Verify the obsolete status before procurement as the manufacturer indicates this part will be discontinued. Confirm availability through authorized distributors or secondary markets. Ensure compatibility with existing design specifications regarding voltage thresholds and package type. Check for RoHS compliance details if required for specific regulatory standards. Validate lead times due to potential limited stock availability.

Supervisors Selection Notes

Select this component for applications requiring a simple, low-power voltage supervisor with an open-drain output. Consider the 3.08 V threshold for systems operating near this voltage level. The SOT-23-3 package is suitable for space-constrained designs. Evaluate the 240 ms reset delay against system startup requirements. Ensure the operating voltage range aligns with the target power supply rails.

Supervisors Part Context

This part belongs to the CAT853 series of voltage supervisors from onsemi. These devices are engineered for reliable performance in industrial environments. The series offers various threshold options and output configurations to suit different monitoring needs. The CAT853TTBI-GT3 specifically targets cost-sensitive applications requiring basic voltage supervision capabilities.

Supervisors Replacement Considerations

Check for direct pin-to-pin replacements within the same family or compatible alternatives from other manufacturers. Verify that substitute parts meet the same electrical specifications, particularly threshold voltages and output types. Ensure mechanical compatibility with the SOT-23-3 footprint. Review datasheets for any differences in reset timing or current consumption.