Maxim Integrated MAX6306UK46D3 - Microprocessor Supervisory Circuit

The MAX6306UK46D3 is a highly precise microprocessor (µP) supervisory circuit designed by Maxim Integrated to monitor power supplies in µP and digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used in systems that require voltage monitoring. This supervisory circuit is ideal for portable electronics, computers, controllers, and intelligent instruments where maintaining the correct operation of the µP is critical.

The device features a reset output during power-up, power-down, and brownout conditions. The reset signal remains asserted for a minimum timeout period after VCC has risen above the reset threshold level, ensuring the system has sufficient time to stabilize and the µP can safely initiate its routines. The MAX6306UK46D3 has a preset threshold voltage of 4.63V, tailored for 5V-powered systems.

Key features of the MAX6306UK46D3 include:

• Factory-Trimmed Reset Threshold: The device offers a precise threshold voltage preset to 4.63V, ensuring reliable monitoring without the need for external adjustments.
• Low Power Consumption: With its low supply current of 1.6µA (typical), it is highly suitable for battery-operated equipment.
• Manual Reset Input: A debounced manual reset input allows for a manual system reset, providing additional system control flexibility.
• Guaranteed Reset Valid to VCC = 1V: Ensures that the reset output will remain in the correct state even with low VCC conditions.
• Immune to Short VCC Transients: The circuit is designed to ignore fast transients on VCC, preventing false resets.

With its compact SOT-23 packaging, the MAX6306UK46D3 is a space-saving solution for systems where board space is at a premium. It operates over a wide temperature range from -40°C to +125°C, making it suitable for industrial applications that require robust performance in challenging environments.

Overall, the MAX6306UK46D3 from Maxim Integrated is a reliable and efficient choice for system designers looking to enhance the operational stability of their microprocessor-based systems.