MAX6665ASA40+ Voltage Monitor IC with Reset Function, SOIC-8 Package

MAX6665ASA40+ Overview

The MAX6665ASA40+ is a highly integrated voltage supervisor designed to monitor power supply levels in complex electronic systems. It provides precise reset and watchdog timer functions, ensuring reliable system startup and operation by detecting undervoltage conditions. With a fixed threshold of 4.0V, this device is optimized for 3.3V and 5V systems, delivering robust protection against power faults. Its compact SOT23 package supports space-constrained industrial applications. The integrated watchdog timer adds an essential layer of fault detection, making it ideal for embedded control and microprocessor-based designs. For more information, visit IC Manufacturer.

MAX6665ASA40+ Technical Specifications

MAX6665ASA40+ Key Features

• Precision Voltage Monitoring: Fixed 4.0V reset threshold with tight ??1.5% accuracy ensures reliable detection of undervoltage conditions, protecting system integrity.
• Integrated Watchdog Timer: Automatically resets the system if the microprocessor fails to toggle the watchdog input, enhancing fault tolerance and system uptime.
• Low Supply Current: Typical current consumption of 3.5??A minimizes power draw, making it suitable for battery-powered and energy-efficient applications.
• Open-Drain Reset Output: Allows easy interfacing with multiple devices and supports wired-AND configurations for flexible system design.

MAX6665ASA40+ Advantages vs Typical Alternatives

This voltage supervisor stands out through its precise 4.0V threshold and integrated watchdog timer, combining two critical functions in a single compact package. Its low quiescent current and wide operating voltage range provide enhanced power efficiency and flexibility compared to typical discrete solutions. The device??s fast reset output delay and open-drain architecture enable reliable and adaptable system reset management, improving overall reliability and integration ease.

Typical Applications

• Microprocessor and microcontroller power monitoring in embedded control systems, ensuring safe startup and operation by detecting undervoltage conditions and system faults.
• Battery-powered portable devices requiring low power consumption and reliable reset functionality to extend operational life and maintain data integrity.
• Industrial automation equipment where precise voltage supervision and watchdog timer functions enhance system robustness against power anomalies and software errors.
• Communication devices and networking hardware that need integrated reset and watchdog supervision for continuous uptime and fault recovery.

MAX6665ASA40+ Brand Info

The MAX6665ASA40+ is a product from Maxim Integrated, a leader in analog and mixed-signal semiconductor solutions. Designed for industrial and embedded applications, this device embodies Maxim??s commitment to reliability and precision. Its integration of voltage reset supervision and watchdog timer functions reflects the brand??s focus on simplifying system design while enhancing system protection. The product is backed by comprehensive technical support and documentation, ensuring seamless adoption in demanding electronic environments.

FAQ

What is the main function of the MAX6665ASA40+ voltage supervisor?

The primary function is to monitor the system supply voltage and provide a reset signal when the voltage falls below a fixed 4.0V threshold. This prevents microprocessor malfunction due to undervoltage conditions, ensuring proper system startup and operation.

How does the watchdog timer feature improve system reliability?

The integrated watchdog timer monitors the activity of the microprocessor by requiring periodic toggling of the watchdog input. If the processor stops toggling, indicating a possible fault, the device automatically issues a reset, helping recover the system