Maxim Integrated MAX6349YLUT+T Microprocessor Reset Circuit

The MAX6349YLUT+T from Maxim Integrated is a highly reliable and robust microprocessor (µP) supervisory circuit designed to monitor power supplies in digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used in systems that require precision voltage monitoring.

This compact supervisor IC is specifically engineered to maintain system integrity by monitoring the system voltage and asserting a reset if the power supply falls below a preset threshold. The reset output remains asserted for a minimum timeout period after V_CC has risen above the reset threshold level, ensuring the system has adequate time to stabilize before resuming operation. The MAX6349YLUT+T is ideal for portable, battery-powered equipment due to its low power consumption and small footprint.

Key features of the MAX6349YLUT+T include:

• Precision Monitoring: Factory-trimmed reset threshold levels suitable for monitoring 3V, 3.3V, and 5V powered circuits.
• Low Power Consumption: With a typical supply current of only 1µA, it is optimized for battery-operated systems.
• Manual Reset Input: A debounced manual reset input allows for a manual system reset, providing additional system control.
• Reset Timeout: Features a minimum reset timeout period of 140ms, ensuring proper system reset.
• Compact Package: Available in a small SOT23-6 package, making it suitable for space-constrained applications.
• Temperature Range: Operates over the extended -40°C to +85°C temperature range, accommodating a wide range of environmental conditions.

The MAX6349YLUT+T is an excellent choice for managing power supplies in complex systems, such as computers, controllers, and intelligent instruments. Its ability to provide a reliable reset signal upon detection of voltage drops ensures that the system can recover from power failures safely and effectively. By integrating this supervisory circuit into your design, you can enhance the overall stability and reliability of your digital systems.

For detailed specifications and application information, designers should consult the datasheet and Maxim Integrated's technical support resources.