CAT853MTBI-T3

Supervisors Overview

The CAT853MTBI-T3 is a microprocessor power supply supervisor manufactured by onsemi. It operates within a supply voltage range of 1.2 V to 5.5 V and monitors voltages up to 5 V. The device provides a reset signal with an open-drain or open-collector output, active low. It functions across an industrial temperature range of -40°C to +85°C. The component is housed in a surface-mount SOT-23-3 package (TO-236-3, SC-59).

Supervisors Feature Summary

• Provides reliable system reset for microprocessors under varying power conditions.
• Features an open-drain or open-collector output compatible with various logic families.
• Operates efficiently at low supply voltages starting from 1.2 V.

Supervisors Applications

• Microprocessor power supply supervision
• Battery-powered electronic devices
• Portable consumer electronics

Supervisors Procurement Notes

Verify the specific datasheet revision and electrical characteristics against current official documentation before integration. Confirm that the SOT-23-3 package dimensions align with your PCB footprint requirements. Ensure the operating temperature range meets your environmental specifications. Check for any recent lifecycle status updates regarding availability or obsolescence.

Supervisors Selection Notes

Select this component when a compact supervisory solution is required for low-voltage digital systems. The SOT-23-3 package offers space efficiency for dense layouts. Consider the open-drain output capability if level shifting or wired-OR configurations are needed in the design. Verify compatibility with the target microprocessor's reset input requirements.

Supervisors Part Context

This part belongs to the CAT853 series of 3-pin microprocessor power supply supervisors. It is designed to monitor single power rails and generate a reset signal upon detecting out-of-specification voltage levels. The series is intended for applications requiring simple, cost-effective power management without complex configuration interfaces.

Supervisors Replacement Considerations

Cross-reference with CAT853STBI-T3 and CAT853TTBI-T3 for potential pin-compatible alternatives within the same family. Verify functional equivalence regarding reset thresholds and output types before substitution.