Maxim Integrated MAX6315EUS26D4+T Low-Power Microprocessor Reset Circuit

The MAX6315EUS26D4+T is a highly reliable and precise microprocessor (µP) supervisory circuit designed to monitor power supplies in digital systems. Manufactured by Maxim Integrated, this device is engineered to provide a quick and accurate response to ensure system stability by resetting the µP during power-up, power-down, and brownout conditions. Its compact form factor and low power consumption make it ideal for portable and space-constrained applications.

This supervisory circuit features a factory-trimmed reset threshold voltage of 2.63V, tailored to operate with 2.7V to 3.3V power supplies, making it well-suited for low-voltage applications. The MAX6315EUS26D4+T comes in a 4-pin SOT-143 package, which is both space-saving and convenient for integration into a wide range of electronic systems. The device's active-low reset output remains asserted for a minimum of 140ms after V_CC has risen above the reset threshold level, ensuring a proper system reset and allowing the power supply and processor to stabilize.

One of the key features of the MAX6315EUS26D4+T is its low supply current draw of only 1µA, which contributes to enhanced battery life in portable devices. Additionally, the device is characterized for operation over a broad temperature range, from -40°C to +85°C, providing reliable performance under various environmental conditions.

The reset circuit also includes an integrated debounce circuitry, which eliminates the need for any external components, thereby reducing system complexity and additional costs. This product is available in tape and reel format (denoted by the "+T" suffix), facilitating automated assembly and mass production processes for electronic manufacturers.

In summary, the MAX6315EUS26D4+T from Maxim Integrated is a robust and efficient solution for microprocessor system management, offering precise voltage monitoring, low power consumption, and a compact package. It is an essential component for designers looking to enhance the reliability of their digital systems, particularly in applications where space and power are at a premium.