Maxim Integrated MAX6804US31D3+T Microprocessor Reset Circuit

The MAX6804US31D3+T from Maxim Integrated is a compact, highly reliable microprocessor (μP) supervisory circuit designed to monitor power supplies in μP and digital systems. It provides a crucial function by ensuring that the μP resets cleanly during power-up, power-down, and brownout conditions. With its precision factory-set V_CC reset threshold voltage, the MAX6804US31D3+T maintains system integrity and prevents code execution errors due to insufficient system voltages.

This supervisory circuit is specifically tailored for portable and battery-powered equipment, thanks to its low power consumption and small footprint. The MAX6804US31D3+T comes in a compact SOT-143 package, making it ideal for space-constrained applications where maintaining a small form factor is essential.

Key features of the MAX6804US31D3+T include:

• Factory-Set Reset Threshold Voltage: The device has a preset V_CC reset threshold of 3.08V, which is suitable for 3.3V-powered circuits.
• Low Power Consumption: With a quiescent current of only 1.6μA, it is highly efficient for use in power-sensitive designs.
• Manual Reset Input: A manual reset input is provided, allowing the user to trigger a reset externally.
• Reset Timeout: The minimum power-on reset timeout period is 140ms, ensuring adequate time for the system to stabilize upon power-up.
• Temperature Range: The device operates over an extended temperature range of -40°C to +85°C, making it suitable for a variety of environmental conditions.
• Immunity to Short V_CC Transients: The MAX6804US31D3+T is designed to ignore brief perturbations on the V_CC line, enhancing system reliability.

The MAX6804US31D3+T is an ideal solution for managing system resets in microprocessor-based systems, such as computers, controllers, and intelligent instruments. By providing a reliable reset signal and safeguarding against voltage anomalies, this supervisory circuit helps to maintain system stability and prolong the operational life of electronic components.

Maxim Integrated's reputation for high-quality and durable components is reflected in the MAX6804US31D3+T, making it a preferred choice for designers looking to enhance the resilience and performance of their digital systems.