CAT140169MWI-GT3

Supervisors Overview

The CAT140169MWI-GT3 is a voltage supervisory circuit manufactured by onsemi, designed for monitoring single power supply rails. It features an active-low reset output with push-pull configuration and a minimum reset timeout of 140ms. The device operates within a voltage range supported by a threshold of 4.38V. It is housed in an 8-lead SOIC package and functions reliably across an industrial temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Provides single-channel voltage monitoring with a fixed 4.38V threshold
• Delivers active-low reset signal via push-pull output stage
• Ensures system stability with a minimum 140ms reset timeout period

Supervisors Applications

• Embedded systems requiring reliable power supervision
• Industrial control units operating in extreme temperatures
• Consumer electronics needing voltage fault protection

Supervisors Procurement Notes

Verify component authenticity through authorized distributors due to potential counterfeits. Confirm the specific suffix matches the required package and temperature grade. Check current lifecycle status as electronic components may reach end-of-life. Ensure compatibility with existing PCB footprints and voltage levels before integration into new designs.

Supervisors Selection Notes

Select this supervisor when a fixed 4.38V threshold is required for system monitoring. The push-pull output allows direct interfacing with digital logic without external pull-up resistors. Consider the 140ms timeout duration against system startup requirements. Verify that the SOIC-8 package fits the available board space constraints.

Supervisors Part Context

This component belongs to onsemi's line of supervisory circuits, which are critical for maintaining system integrity during power fluctuations. These devices protect sensitive electronics by detecting under-voltage or over-voltage conditions and asserting a reset signal to microcontrollers or processors.

Supervisors Replacement Considerations

Direct substitutes include other onsemi supervisors with similar thresholds and packages, such as the CAT140169 series variants. Cross-reference pinouts and electrical characteristics carefully to ensure functional equivalence in the target application.