The MAX6418UK29 from Maxim Integrated is a compact, high-precision microprocessor (µP) supervisory circuit designed to monitor power supplies in digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used in systems with a 2.9V power supply voltage.

This supervisory circuit is particularly useful in portable electronics, where maintaining the integrity of the power supply is crucial for the operation of the device. It ensures that the microprocessor, microcontroller, or other digital systems reset to a known state during power-up, power-down, or brown-out conditions.

Key Features

• Voltage Monitoring: The MAX6418UK29 actively monitors the 2.9V power supply line, providing a reset signal to the connected microprocessor in the event of an undervoltage condition.
• Reset Timeout: It features an internally fixed reset timeout period of 140ms (min), ensuring that the system has sufficient time to return to a stable operating condition before the reset signal is deasserted.
• Low Power Consumption: With its low supply current of 1.5µA (typ), the device is an ideal choice for battery-powered applications where power efficiency is a priority.
• High Accuracy: The reset voltage threshold is factory-trimmed to 2.9V, providing high accuracy without the need for external adjustments.
• Manual Reset Input: A manual reset input is provided, allowing the user to trigger a reset with an external switch or logic signal.
• Compact SOT23 Packaging: The device is available in a small, 5-pin SOT23 package, making it suitable for use in space-constrained applications.

Applications

The MAX6418UK29 is suitable for a wide range of applications, including:

• Portable/Battery-Powered Devices
• Computers and Servers
• Embedded Systems
• Industrial Controllers
• Automotive Systems

Maxim Integrated's commitment to quality and reliability is evident in the MAX6418UK29, making it a trusted component for ensuring system stability and performance in various electronic applications.