Maxim Integrated MAX6413UK16-T Microprocessor Reset Circuit

The MAX6413UK16-T from Maxim Integrated is a compact, highly reliable 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 with +1.8V, +2.5V, +3.3V, and +5V-powered circuits.

This supervisory circuit significantly improves system reliability by performing a single function: it asserts a reset signal whenever the VCC supply voltage drops below a preset threshold, keeping it asserted for at least 140ms after VCC has risen above the reset threshold. The reset threshold for the MAX6413UK16-T is precisely set at 1.6V, making it suitable for low voltage applications.

The device comes in a compact SOT23-5 package, which is ideal for space-constrained applications. It is characterized for operation over the -40°C to +125°C extended temperature range, making it versatile for various industrial environments. The MAX6413UK16-T is also available in a variety of standard reset threshold voltages, making it flexible for specific design requirements.

Key features of the MAX6413UK16-T include:

• Low 1.6V ±1.5% reset threshold suitable for lower voltage systems
• 140ms min reset timeout delay ensures proper system reset
• Low 1.1µA supply current makes it ideal for power-sensitive applications
• Guaranteed reset valid to VCC = +1.0V for low-voltage operation
• No external components required for a complete reset solution
• Immune to short VCC transients for reliable operation
• Compact SOT23-5 package for space-saving designs

Applications for the MAX6413UK16-T include:

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

Overall, the Maxim Integrated MAX6413UK16-T is a robust, easy-to-use reset circuit that provides a crucial layer of protection for microprocessor-based systems, ensuring that they operate within safe voltage levels and maintain their performance and stability.