MAX6665ASA45+ Voltage Monitor IC with Reset Function, SOIC-8 Package

MAX6665ASA45+ Overview

The MAX6665ASA45+ is a precision voltage monitoring IC designed to supervise power supplies in industrial and embedded systems. It features a fixed +4.5V supply voltage threshold with a built-in reset output, ensuring reliable system initialization and protection against undervoltage conditions. This device offers a compact solution for monitoring single power rails, simplifying system design and enhancing reliability. Its low supply current and accurate voltage threshold detection make it ideal for critical applications requiring robust power supervision. For detailed specifications and purchasing, visit IC Manufacturer.

MAX6665ASA45+ Technical Specifications

MAX6665ASA45+ Key Features

• Fixed 4.5V Threshold Monitoring: Precisely supervises a 4.5V power rail to detect undervoltage conditions, ensuring stable system operation and preventing data corruption.
• Active-Low Open-Drain Reset Output: Provides a reliable reset signal compatible with various logic families, facilitating seamless system resets during power irregularities.
• Low Quiescent Current: Consumes only 3.5??A supply current, minimizing power drain in battery-operated or energy-sensitive systems.
• Integrated Reset Timeout Feature: Includes a 140ms delay to avoid false resets during transient voltage dips, enhancing system stability.

MAX6665ASA45+ Advantages vs Typical Alternatives

This device offers superior accuracy with a fixed 4.5V threshold, reducing design complexity compared to programmable voltage supervisors. Its ultra-low supply current extends battery life in portable applications. The integrated reset output with open-drain configuration provides broad compatibility and reliable system resets, giving it an edge over alternatives that require external components or lack integrated timeout delays for noise immunity.

Typical Applications

• Embedded microcontroller power supply supervision to ensure proper startup and prevent erratic operation during undervoltage conditions.
• Industrial control systems where stable reset signals are critical for reliable operation and system safety.
• Battery-powered portable devices requiring low quiescent current to maximize battery life while maintaining reliable voltage monitoring.
• Communication equipment that depends on accurate power supervision for maintaining signal integrity and preventing data loss.

MAX6665ASA45+ Brand Info

The MAX6665ASA45+ is part of a family of voltage supervisors designed for precision monitoring and system reset applications. This particular model provides a fixed 4.5V threshold, targeting power rails that require exact voltage supervision. Renowned for its reliability and low power consumption, it supports engineers in achieving robust power management solutions in compact packages. The device??s design aligns with industry demands for integration, efficiency, and ease of use in embedded and industrial environments.

FAQ

What is the purpose of the reset timeout delay in the MAX6665ASA45+?

The reset timeout delay, typically 140ms, prevents the system from resetting due to brief voltage dips or transients. This delay ensures that only sustained undervoltage conditions trigger a reset, improving system stability and preventing unnecessary interruptions.

Can the MAX6665ASA45+ be used with supply voltages other than 4.5V?

This device is designed with a fixed threshold at 4.5V for monitoring power rails. While it operates over a supply voltage range from 1.0V to 5.5V, the reset output triggers specifically when the monitored voltage falls below 4.5V, making it unsuitable for supervision at other voltage levels.

How does the open-drain reset output benefit system design?

The open-drain reset output allows the device to interface easily with various logic families and external pull-up voltages, providing design flexibility. It enables wired-