Maxim Integrated MAX6315US44D4-T Microprocessor Reset Circuit

The MAX6315US44D4-T is a compact, highly reliable microprocessor (µP) supervisory circuit from Maxim Integrated, designed to maintain system integrity during power failures or unexpected events. This precision voltage monitoring device is a crucial component for applications requiring consistent and accurate system monitoring and management. It is particularly useful in systems where a safe and orderly shutdown is critical to prevent data loss or hardware damage.

With its factory-trimmed reset threshold voltage set at 4.40V, the MAX6315US44D4-T is tailored for systems operating at 5V power supply levels. It provides a robust defense against unpredictable power supply variations, ensuring that the connected µP and other critical system components receive a reset signal whenever the supply voltage drops below the threshold. This reset signal is maintained for a minimum of 140ms after the supply voltage has risen above the reset threshold, ensuring proper system reset and stabilization.

The device comes in a compact SOT-143 package, making it an ideal choice for space-constrained applications. It operates over a wide temperature range of -40°C to +85°C, catering to demanding environments and ensuring reliable performance under various conditions. The MAX6315US44D4-T also features a low supply current of only 1µA (typical), which is highly beneficial for battery-powered or energy-sensitive applications.

One of the key advantages of the MAX6315US44D4-T is its immunity to short V_CC transients, which helps in maintaining system stability and preventing unnecessary resets during brief power glitches. Additionally, it does not require any external components, simplifying design and reducing the overall bill of materials.

Overall, the MAX6315US44D4-T from Maxim Integrated is an essential component for designers looking to enhance system reliability and protect against data corruption or loss due to power supply issues. Its precision voltage monitoring and low power consumption make it a top choice for a wide range of applications, including computers, controllers, intelligent instruments, and portable electronics.