MCP111T-240E/TT

Supervisors Overview

The MCP111T-240E/TT is a micropower voltage supervisor manufactured by Microchip Technology, designed to monitor a single power supply rail. It features an active-low open-drain reset output and operates within an extended temperature range of -40°C to +125°C. The device triggers a reset when the monitored voltage drops below a threshold of 2.32V. It includes a typical reset delay timer of 120 ms to ensure stable operation during power transitions. Packaged in a compact SOT-23-3 surface-mount case, it supports supply voltages up to 5.5V with ultra-low quiescent current.

Supervisors Feature Summary

• Provides precise monitoring of a single voltage channel with a fixed threshold.
• Generates an active-low reset signal via an open-drain output pin.
• Incorporates a built-in reset delay timer for power-on stability.

Supervisors Applications

• Microcontroller system supervision
• Power-loss event detection
• Embedded circuit protection

Supervisors Procurement Notes

Verify the specific suffix 'TT' against official Microchip documentation to confirm package type and tape-and-reel specifications. Ensure the operating environment remains within the specified -40°C to +125°C range. Confirm RoHS compliance status through the manufacturer's latest datasheet or environmental declaration before finalizing procurement.

Supervisors Selection Notes

Select this component when a simple, low-power solution is required for monitoring a single voltage rail. The fixed 2.32V threshold suits applications where the supply voltage does not drop below this level during normal operation. Consider the open-drain output requirement for external pull-up resistor implementation in the design phase.

Supervisors Part Context

This part belongs to the MCP111 family of micropower voltage supervisors from Microchip Technology. The family offers various threshold options and packaging styles, including SOT-23-3 and TO-92. The MCP111 series is characterized by its low supply current and ability to reset microcontrollers during brown-out conditions.

Supervisors Replacement Considerations

Compatible alternatives within the same family include MCP111T-240E/MB (SOT-89-3 package) and MCP111T-240E/LB (SC-70 package). Verify pinout compatibility and thermal performance differences when substituting packages.