Maxim Integrated MAX6318LHUK46BX+T Microprocessor Reset Circuit

The MAX6318LHUK46BX+T is a highly reliable microprocessor (μP) supervisory circuit designed to maintain system integrity during power failures or unexpected events in digital systems. Manufactured by Maxim Integrated, a leader in analog and mixed-signal engineering, this compact component is essential for managing system resets and power-on reset control in microcontrollers and digital processors.

With its precision factory-set reset threshold voltage, the MAX6318 is tailored for applications requiring a specific reset activation point. The reset threshold for this particular variant is set for 4.6V, making it suitable for 5V systems that need a tight monitoring margin. Once the supply voltage (V_CC) falls below the designated threshold, the MAX6318LHUK46BX+T asserts a reset signal, which remains asserted for a minimum of 140ms (reset timeout period) after V_CC rises above the reset threshold, ensuring a proper system reboot.

This device comes in a compact SOT-23 package, making it ideal for space-constrained applications. The suffix 'T' indicates that the product is provided in tape and reel packaging, which is convenient for automated manufacturing processes. The 'L' in the part number denotes a low V_CC reset threshold, and the 'H' indicates that it has a high reset active timeout period. The 'UK' series comes with an active-low, push-pull reset output, which provides a direct, low-impedance drive to a reset line.

The MAX6318LHUK46BX+T is characterized for operation over a wide temperature range of -40°C to +85°C, ensuring reliable performance in diverse environmental conditions. Its low supply current (typically 1.5μA at V_CC = 3.3V) makes it an energy-efficient choice for battery-powered and portable devices.

Applications for the MAX6318LHUK46BX+T include portable electronics, computers, controllers, and any system that requires a reliable reset mechanism to ensure proper operation and recovery from power disturbances.

Overall, the MAX6318LHUK46BX+T from Maxim Integrated is a robust, high-precision reset circuit that provides crucial monitoring and control for advanced digital systems, ensuring they operate reliably and effectively in various conditions and applications.