Maxim Integrated MAX6315US45D2+T Low-Power Microprocessor Reset Circuits

The MAX6315US45D2+T is a highly reliable and precise microprocessor (µP) supervisory circuit designed to maintain system integrity during power failures or unexpected events. Manufactured by Maxim Integrated, this component is ideal for portable and compact applications where power consumption and space are critical considerations.

This supervisory circuit features a factory-trimmed reset threshold voltage of 4.5V, making it suitable for 5V-powered systems. It is designed to assert a reset signal to the µP whenever the VCC supply voltage falls below the preset threshold, ensuring that the µP restarts properly during power-up, power-down, or brown-out conditions. The reset signal remains asserted for a minimum of 140ms after VCC has risen above the reset threshold, providing ample time for the system to stabilize.

The MAX6315US45D2+T comes in a compact 4-pin SOT-143 package, which is highly advantageous for space-constrained applications. The device operates over a wide temperature range of -40°C to +85°C, ensuring reliable performance across various environmental conditions.

One of the key features of this reset circuit is its low power consumption, with a typical supply current of only 1µA. This makes it an excellent choice for battery-operated devices where extending battery life is paramount. Additionally, the device offers a debounced manual reset input, which allows for a manual reset of the µP, providing an extra layer of control and security.

The MAX6315US45D2+T also includes an active-low reset output, which is guaranteed to be in the correct state for VCC down to 1V. This ensures that the µP is held in the reset state securely even during low-voltage conditions.

Overall, the MAX6315US45D2+T from Maxim Integrated is a robust and dependable solution for system management in microprocessor-based systems. Its low power consumption, small form factor, and high precision make it an essential component for maintaining system stability and performance.