Maxim Integrated MAX6315US48D3-T Microprocessor Reset Circuit

The MAX6315US48D3-T is a highly reliable and precise microprocessor (µP) supervisory circuit designed by Maxim Integrated to monitor power supplies in digital systems. This device is engineered to ensure that the µP and its peripherals are reset properly during power-up, power-down, or brown-out conditions. The MAX6315US48D3-T is an essential component for maintaining system integrity and preventing software corruption in a wide range of applications.

Featuring a factory-trimmed reset threshold voltage of 4.8V, the MAX6315US48D3-T is tailored for systems that operate at 5V power supply levels. The reset output is active-low and remains asserted for a minimum of 140ms after VCC has risen above the reset threshold level, providing ample time for the system to stabilize before the processor starts operating. This ensures that the system's microprocessor starts up in a known state every time.

The MAX6315US48D3-T comes in a compact SOT-143 package, making it ideal for space-constrained applications. Its low supply current of only 1µA (typical) makes it suitable for portable and battery-operated devices where power efficiency is crucial. The device operates over a wide temperature range of -40°C to +85°C, ensuring reliable performance in harsh environments.

One of the key features of the MAX6315US48D3-T is its immunity to short VCC transients, which guarantees that the reset output will remain in the correct state during brief power glitches. This robustness is critical for maintaining system stability and preventing erroneous resets that could lead to data loss or system failures.

In summary, the MAX6315US48D3-T by Maxim Integrated is a vital component for any digital system requiring robust power-on reset capabilities. Its precise voltage monitoring, low power consumption, and compact form factor make it an excellent choice for designers looking to enhance the reliability of their microprocessor-based systems.

For more detailed specifications and application information, designers and engineers are encouraged to consult the datasheet and technical resources provided by Maxim Integrated.