The MAX704CSA from Maxim Integrated is a compact, highly reliable supervisory circuit designed to monitor power supplies in microprocessor (µP) systems. It provides a significant level of protection to digital systems by ensuring that the µP and its associated circuitry reset cleanly during power-up, power-down, and brown-out conditions.

Key Features

• Power Supply Monitoring: The MAX704CSA keeps a vigilant watch on the system's power supply, triggering a reset to the microprocessor when the supply voltage drops below a preset threshold, ensuring proper system operation during power fluctuations.
• Manual Reset Capability: An additional feature of this supervisory IC is the manual reset input, which allows for a system reset to be initiated by an external signal, providing added control to the system operators.
• Reset Timeout: After the power supply returns above the threshold level, the MAX704CSA maintains the reset output in the active condition for a specified period to allow the power supply and processor to stabilize. This timeout period is typically 150ms or 600ms, selectable by the user.
• Low Power Consumption: Designed for energy-conscious applications, the MAX704CSA operates with low power consumption, making it suitable for portable and battery-operated systems.
• Compact Package: The device is available in a space-saving 8-pin SO package, ideal for applications where board space is at a premium.

Applications

The MAX704CSA is versatile and can be used in a wide array of applications. Its primary use is in systems that require a precise and reliable monitoring circuit for their power supplies. This includes but is not limited to:

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

Technical Specifications

The MAX704CSA operates over a wide voltage range and has several technical specifications that make it a robust choice for system designers:

• Supply Voltage Range: 4.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Reset Threshold Options: Factory preset options available
• Package Type: 8-pin SOIC

With its comprehensive set of features, the MAX704CSA from Maxim Integrated is an essential component for ensuring the reliability and proper functioning of microprocessor-based systems.