Maxim Integrated MAX6412UK26 Microprocessor Reset Circuit

The MAX6412UK26 is a compact, high-precision microprocessor (µP) reset circuit device from Maxim Integrated, designed to monitor power supplies in digital systems. It provides a critical function by ensuring that the µP and its peripherals are reset properly during power-up, power-down, or brown-out conditions. This particular model offers a fixed reset threshold voltage of 2.63V, tailored for systems that operate at 2.7V and above.

Key Features:

• Compact Size: The device comes in a space-saving SOT23-5 package, making it ideal for applications where board space is at a premium.
• Low Power Consumption: With a quiescent current of only 1.2µA, the MAX6412UK26 is optimized for battery-powered and portable applications, extending battery life.
• Precision Reset: The reset output is guaranteed to be in the correct state for VCC down to 1.0V, providing reliable monitoring of the power supply.
• Manual Reset Input: An external input is provided to manually trigger a system reset, allowing for additional system control and diagnostic capabilities.
• Reset Timeout: After the voltage returns to an acceptable level, the reset signal is maintained for an additional 140ms (min) to ensure the system has stabilized.
• Factory-Trimmed Reset Thresholds: The reset thresholds are laser-trimmed for high accuracy without requiring external components.
• Immunity to Short VCC Transients: The device includes built-in glitch immunity to ensure that the µP is not improperly reset by brief dips in the power supply.

Applications:

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

With its robust feature set, the MAX6412UK26 from Maxim Integrated is a reliable and essential component for maintaining system integrity across a variety of electronic applications. Its precision voltage monitoring and low power consumption make it an excellent choice for designers looking to enhance system reliability and extend operational life.