Maxim Integrated MAX6804US29D2+T Microprocessor Reset Circuit

The Maxim Integrated MAX6804US29D2+T is a highly reliable microprocessor (μP) supervisory circuit designed to monitor power supplies in digital systems. It ensures that the microprocessor is reset to a known state during power-up, power-down, or brown-out conditions. This particular model comes in a compact SOT-143 package and is part of the MAX6804 series, known for its precision monitoring of 2.9V voltage supplies.

The device features a factory-trimmed reset threshold voltage of 2.925V, which makes it suitable for applications that operate around the standard 3.3V power supply level. When the monitored supply voltage drops below the reset threshold, the MAX6804US29D2+T asserts a reset signal, holding the connected microprocessor in a reset state for a minimum of 140ms (typical) after the supply voltage exceeds the reset threshold, ensuring proper system reboot.

One of the key advantages of the MAX6804US29D2+T is its low power consumption, with a typical supply current of only 1.2μA, making it ideal for power-sensitive applications. Furthermore, the device is characterized for operation over a wide temperature range of -40°C to +125°C, accommodating diverse environmental conditions.

The MAX6804US29D2+T also features a debounced manual reset input, which allows for a forced reset when required. This is particularly useful for debugging and system maintenance purposes. The device's open-drain reset output can be connected to a variety of logic levels, offering flexibility in interfacing with different microprocessors or digital systems.

With its robust feature set and compact form factor, the Maxim Integrated MAX6804US29D2+T is an excellent choice for managing system integrity through precise voltage monitoring and reset control. Its ease of integration into a wide array of digital systems, from consumer electronics to industrial controls, makes it a versatile component for ensuring system reliability and performance.

Overall, the MAX6804US29D2+T is a testament to Maxim Integrated's commitment to providing high-quality, precision-engineered solutions for digital system management and monitoring.