Maxim Integrated MAX6318LHUK49BX+T Microprocessor Reset Circuit

The Maxim Integrated MAX6318LHUK49BX+T is a highly reliable and precision microprocessor (µP) supervisory circuit designed to monitor power supplies and microprocessor activity in digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used with +5V-powered circuits.

This supervisory circuit significantly improves system reliability and accuracy compared to separate ICs or discrete components. The MAX6318LHUK49BX+T comes in a compact SOT-23 package, making it ideal for space-constrained applications. It is specifically designed to maintain system integrity and prevent potential data loss during power failures or unpredictable events.

Key Features

• Precision Factory-Set Reset Thresholds: The device comes with a preset reset threshold voltage of 4.90V, ensuring reliable operation without the need for external adjustments.
• Low Power Consumption: With its low supply current of 1.5µA (typical), it is an excellent choice for portable and battery-powered applications.
• Manual Reset Input: The inclusion of a manual reset input allows for a reset to be triggered with an external switch or logic signal, providing additional system control.
• Reset Timeout: It features a minimum power-on reset timeout of 140ms, ensuring that the system has adequate time to stabilize before the processor starts.
• Immune to Short VCC Transients: The MAX6318LHUK49BX+T is designed to ignore fast transients on the VCC line, enhancing system stability.
• Temperature Range: The device operates over an extended temperature range of -40°C to +125°C, suitable for industrial applications.

Applications

The MAX6318LHUK49BX+T is versatile and can be used in a wide array of applications where reliable system operation is critical. Typical applications include:

• Computers and Servers
• Embedded Systems
• Portable/Battery-Powered Equipment
• Industrial Controllers
• Medical Devices

With its combination of features, the MAX6318LHUK49BX+T from Maxim Integrated provides an efficient and cost-effective solution for system monitoring and protection, ensuring minimal downtime and maximum operational reliability.