Product Overview: MAX818LCUA from Maxim Integrated

The MAX818LCUA from Maxim Integrated is a highly integrated and efficient microprocessor (µP) supervisory circuit designed to monitor power supplies in µP and digital systems. This precision device provides a significant level of system reliability and accuracy required in critical applications, ensuring the proper operation of the µP by monitoring its power supply.

Key Features

• Power Supply Monitoring: The MAX818LCUA is capable of monitoring +3.3V, +5V, and adjustable voltage power supplies, providing a robust solution for a variety of system voltages.
• Reset Output: It features an active-low reset output, which remains asserted for a minimum of 140ms after VCC has risen above the reset threshold. This ensures a proper system reset and start-up sequence.
• Low Power Consumption: The device is optimized for low-power consumption, drawing a quiescent current of only 17µA, making it ideal for power-sensitive applications.
• Manual Reset Input: A manual reset input is provided, allowing for a system reset to be triggered at any time by the user or external logic.
• Compact Package: Offered in an 8-pin µMAX package, the MAX818LCUA is designed for space-constrained applications without compromising on functionality.

Applications

The MAX818LCUA is suitable for a wide range of applications that require reliable voltage monitoring and system management, including:

• Computers and Servers
• Embedded Systems
• Portable/Battery-Powered Equipment
• Industrial Controllers
• Telecommunications Equipment

Technical Specifications

With precision voltage monitoring and a built-in watchdog timer, the MAX818LCUA ensures that systems operate within their specified voltage ranges and provides additional features such as:

• Voltage Threshold Options: Factory-trimmed reset threshold voltages for 3.3V and 5V supplies.
• Temperature Range: Operates over the extended -40°C to +85°C temperature range.
• Immunity to Short VCC Transients: Ensures reliable operation under fluctuating power conditions.

Overall, the MAX818LCUA from Maxim Integrated is a compact, efficient, and reliable solution for system power supply monitoring, offering a combination of features that enhance the stability and safety of electronic systems.