The MAX709MESA is a sophisticated and reliable reset circuit designed and manufactured by Maxim Integrated, a renowned leader in the development of integrated circuits. This precision microprocessor (µP) supervisory circuit is engineered to monitor power supplies in µP and digital systems, providing a crucial safeguard against power failures or unexpected voltage drops.

Key Features

• Voltage Monitoring: The device offers precise monitoring of power supply voltages, ensuring that the system operates within safe parameters.
• Reset Output: In the event of a power supply fault, the MAX709MESA generates a reset signal to the µP, which holds the processor in a reset state for a minimum of 140ms after the supply voltage exceeds the reset threshold. This feature ensures proper system reboot and operation.
• Low Power Consumption: With a quiescent current of typically 17µA, this device is optimized for power-sensitive applications.
• Versatility: It is suitable for use in a wide range of applications, including computers, controllers, intelligent instruments, and portable/battery-powered equipment.
• Package: The MAX709MESA comes in an 8-pin SOIC (Small Outline Integrated Circuit) package, which is widely used and easy to integrate into various circuit designs.

Technical Specifications

The device operates over a wide voltage range and has several key technical specifications that make it an essential component for system stability and reliability:

• Supply Voltage Range: 4.75V to 5.5V
• Reset Threshold Options: Factory preset options available
• Output Type: Active-low, push-pull reset output
• Operating Temperature: -40°C to +85°C

Applications

The MAX709MESA is ideal for applications that require reliable voltage monitoring and system reset capabilities. It is commonly used in:

• Microprocessor systems
• Computers and servers
• Embedded systems
• Portable electronic devices
• Data storage devices

With its combination of features, the MAX709MESA from Maxim Integrated is a top choice for designers looking to enhance system reliability and protect against the consequences of power supply anomalies.