Maxim Integrated MAX6829SHEUT Microprocessor Supervisory Circuit

The Maxim Integrated MAX6829SHEUT is a compact, high-precision microprocessor (µP) supervisory circuit designed to monitor power supplies in µP and digital systems. It provides a crucial function in ensuring system reliability by asserting a reset signal whenever the VCC supply voltage falls below a preset threshold, thus safeguarding the system from erratic operation during power-up, power-down, and brown-out conditions.

This supervisory circuit is ideal for portable and battery-powered equipment due to its low power consumption and small footprint. Encased in a 6-pin SOT-23 package, the MAX6829SHEUT is engineered to be space-efficient, making it a perfect fit for compact electronic devices where board space is at a premium.

Key features of the MAX6829SHEUT include:

• Precision Monitoring: The device offers factory-set reset thresholds suitable for monitoring 3V, 3.3V, and 5V power supplies, ensuring compatibility with a wide range of applications.
• Low Power Consumption: With a quiescent current of just 6µA, it is designed to minimize the impact on the battery life of portable devices.
• Manual Reset Input: This feature allows for a manual system reset, providing an additional layer of system control.
• Reset Output: The active-low reset output ensures a minimum reset pulse duration of 140ms, offering a reliable reset signal for proper system reboot.
• Immune to Short VCC Transients: The device has built-in glitch immunity, ensuring that the system remains unaffected by short transients on the VCC line.

The MAX6829SHEUT operates over a wide temperature range of -40°C to +85°C, making it suitable for use in harsh environments. Its robust design and precision voltage monitoring make it an essential component for maintaining the integrity of microprocessor systems, including computers, controllers, and intelligent instruments.

Overall, Maxim Integrated's MAX6829SHEUT offers a reliable and efficient solution for system designers looking to enhance the operational stability of their digital systems through effective power supply monitoring.