Maxim Integrated's MAX6348XR31+T Microprocessor Reset Circuit

The MAX6348XR31+T is a compact, highly reliable microprocessor (µP) supervisory circuit designed by Maxim Integrated to monitor power supplies in digital systems. It provides a significant layer of protection by ensuring that the µP and its peripherals are reset properly during power-up, power-down, and brown-out conditions. This particular model comes in a small SC70 package, making it an ideal choice for space-constrained applications.

Key Features:

• Precision Monitoring: The device features a factory-set reset threshold voltage of 3.08V, which is suitable for 3.3V-powered systems, ensuring accurate monitoring of the power supply voltage.
• Low Power Consumption: With its low supply current of only 1.2µA, the MAX6348XR31+T is an energy-efficient solution that contributes to the overall power management of the system it is integrated into.
• Manual Reset Input: This feature allows for a manual reset, giving system designers an additional layer of control over the reset logic.
• Immunity to Short VCC Transients: The device is designed to ignore short transients on the VCC line, preventing unnecessary resets and ensuring system stability.
• Power-Supply Transient Immunity: The circuit is immune to fast transients on the power supply, which is crucial for maintaining the integrity of the system during fluctuating power conditions.
• Extended Temperature Range: The MAX6348XR31+T operates over an extended temperature range, from -40°C to +125°C, making it suitable for industrial applications.

Applications:

The MAX6348XR31+T is versatile and can be used in a variety of applications that require reliable voltage monitoring and system reset functionality. These include:

• Computers and Controllers
• Embedded Systems
• Portable/Battery-Powered Equipment
• Intelligent Instruments
• Automotive Systems

In summary, the Maxim Integrated MAX6348XR31+T microprocessor reset circuit is an essential component for any system that demands precise voltage monitoring and reliable reset functions. Its low power consumption, manual reset feature, and immunity to power-supply transients make it a robust choice for designers looking to enhance system reliability and performance.