Maxim Integrated's MAX6802UR26D3 Microprocessor Reset Circuit

The MAX6802UR26D3 is a compact, high-precision microprocessor (µP) supervisory circuit designed by Maxim Integrated to monitor power supplies in digital systems. It provides a reliable method to ensure that a µP resets to a known state during power-up, power-down, or if a brownout condition occurs. This component is essential for maintaining system integrity and preventing software execution errors.

Key Features

• Voltage Monitoring Precision: The MAX6802UR26D3 offers an impressive threshold voltage accuracy of ±1.5%, ensuring precise monitoring and reliable system operation.
• Low Power Consumption: With a quiescent current of just 6 µA, this device is optimized for power-sensitive applications, contributing to the overall efficiency of the system it is integrated into.
• Manual Reset Input: This feature allows for an external trigger to initiate a system reset, providing additional control to the user or system administrator.
• Reset Timeout: It boasts a 140 ms min reset timeout delay, which ensures that the system has sufficient time to stabilize before normal operation resumes.
• Operating Voltage Range: The device can operate over a wide voltage range, making it versatile for various applications.
• Temperature Range: It is designed to function reliably over the extended industrial temperature range, ensuring performance in diverse environments.

Applications

The MAX6802UR26D3 is ideal for use in a multitude of applications where reliable system operation is paramount. These include:

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

Given its small SOT23-3 package, the MAX6802UR26D3 is particularly well-suited for space-constrained applications. Its precision voltage monitoring and low power consumption make it an excellent choice for designers looking to enhance system reliability and performance without sacrificing power efficiency.

Overall, the MAX6802UR26D3 from Maxim Integrated represents a robust solution for microprocessor system management, providing peace of mind that digital systems will operate as intended even under adverse power conditions.