Maxim Integrated's MAX6306UK31D3+T - Microprocessor Supervisory Circuit

The MAX6306UK31D3+T is a highly compact, single-supervisor IC designed by Maxim Integrated to monitor power supplies in microprocessor systems. It provides a significant layer of protection by ensuring that the microprocessor always starts up in a known state. This tiny device, housed in a space-saving SOT-23 package, is an essential component for systems that require a high level of reliability and precision.

Key Features

• Voltage Monitoring: The MAX6306UK31D3+T supervises a 3.08V power supply voltage, providing an active-low reset signal whenever the monitored voltage falls below the preset threshold. This ensures that the system does not operate under conditions that could lead to unpredictable behavior.
• Reset Timeout: Upon detecting a voltage drop, the device asserts a reset signal for a minimum of 140ms (typical), allowing the power supply and processor ample time to stabilize before normal operation resumes.
• Low Power Consumption: Designed for power-sensitive applications, this supervisory circuit has a low quiescent current draw, typically just 20µA, which helps in conserving battery life in portable devices.
• High Precision: This component offers a tight reset threshold accuracy of ±2.5% over the entire temperature range of -40°C to +125°C, ensuring reliable operation under varying environmental conditions.
• Manual Reset Input: An additional feature of the MAX6306UK31D3+T is the manual reset input, which allows for an external trigger to initiate a system reset, providing an extra level of control to the user.

Applications

The MAX6306UK31D3+T is ideal for use in a variety of applications where reliable voltage monitoring is critical. These include:

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

With its robust feature set and compact form factor, the MAX6306UK31D3+T from Maxim Integrated is an excellent choice for designers looking to enhance the operational stability of their microprocessor-based systems.