CAT853RTBI-T3

Supervisors Overview

The CAT853RTBI-T3 is a microprocessor supervisory circuit manufactured by onsemi, designed to monitor voltage levels in embedded systems. It operates within a supply voltage range of 1.2 V to 5.5 V and monitors a single channel with a fixed reset threshold of 2.63 V. The device features an open-drain or open-collector output active low. It is housed in a compact SOT-23 surface-mount package and supports an operating temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Provides reliable system reset for microprocessors under abnormal power conditions
• Features open-drain/open-collector output for flexible logic interfacing
• Compact SOT-23 package suitable for space-constrained designs

Supervisors Applications

• Microprocessor power monitoring in consumer electronics
• Embedded system reset generation
• Portable device power management

Supervisors Procurement Notes

Verify component status as the CAT853RTBI-T3 may be obsolete or discontinued. Confirm availability through authorized distributors or alternative sources. Ensure compliance with RoHS directives if required for your application. Check for valid substitution options if original stock is unavailable.

Supervisors Selection Notes

Select this component when a fixed 2.63 V reset threshold is required for single-channel voltage monitoring. Consider the SOT-23 package size for PCB layout constraints. Verify that the open-drain output configuration matches your system's logic requirements. Ensure the operating temperature range meets environmental specifications.

Supervisors Part Context

Part of the CAT853 series of supervisory circuits from onsemi, focusing on simple voltage monitoring solutions. This series typically offers fixed thresholds and minimal external component requirements. The RTBI suffix indicates specific pinout and packaging characteristics within the product line.

Supervisors Replacement Considerations

APX803-26SAG-7 is listed as a parametric equivalent substitute. Verify pin compatibility and electrical parameters before replacement.

Supervisors FAQ

What is the reset threshold voltage for the CAT853RTBI-T3?

The fixed reset threshold voltage is 2.63 V.

What type of output does this supervisor circuit provide?

It provides an open-drain or open-collector output that is active low.