MCP120-475DI/TO

Supervisors Overview

The MCP120-475DI/TO is a voltage supervisory circuit manufactured by Microchip Technology, designed to monitor system power levels and ensure microcontroller stability. It features an open-drain active-low reset output with a typical reset delay of 350 ms. The device operates within a supply voltage range of 1 V to 5.5 V and supports a threshold voltage of 4.625 V. It is qualified under AEC-Q100 standards for automotive applications and functions reliably across an industrial temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Maintains the microcontroller in a reset state until the supply voltage reaches a stable operating level
• Provides protection against brown-out conditions when supply voltage drops below safe thresholds
• Features an open-drain output configuration suitable for interfacing with various logic families

Supervisors Applications

• Microcontroller system supervision
• Brown-out detection circuits
• Automotive electronic systems requiring AEC-Q100 qualification

Supervisors Procurement Notes

Verify the specific suffix 'DI' corresponds to the desired package variant and temperature grade. Confirm that the open-drain output architecture aligns with the target system's pull-up requirements. Ensure the 4.625 V threshold matches the monitored rail voltage precisely. Check for any recent manufacturing updates or pinout revisions in the latest datasheet before finalizing procurement.

Supervisors Selection Notes

Select this component when an open-drain output is preferred over push-pull configurations for wired-OR capabilities. The AEC-Q100 qualification makes it suitable for automotive environments where reliability is critical. Consider the 350 ms reset delay duration to ensure compatibility with the microcontroller's startup sequence requirements.

Supervisors Part Context

This part belongs to the MCP120 series of voltage supervisors, which are designed for low-cost, high-reliability monitoring applications. The TO-92-3 package offers a through-hole mounting option, facilitating easy integration into prototyping boards and legacy designs. The series provides multiple threshold options to accommodate various standard voltage rails.

Supervisors FAQ

Does the MCP120-475DI/TO include a manual reset input?

No, this specific model does not feature a manual reset input; it relies solely on voltage monitoring for reset generation.

What is the maximum supply voltage for this device?

The maximum supply voltage rating for the MCP120-475DI/TO is 5.5 V.