Maxim Integrated MAX6829TIUT+T Microprocessor Reset Circuit

The MAX6829TIUT+T is a highly reliable, compact microprocessor (µP) supervisory circuit designed by Maxim Integrated to monitor power supplies in digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used with +3V, +3.3V, and +5V-powered circuits.

This device is particularly suited for portable and space-constrained applications due to its tiny SOT23 package. The MAX6829TIUT+T ensures that the µP's power supply is stable before the processor can start operating. It achieves this by providing a reset signal to the µP during power-up, power-down, and brownout conditions. The reset signal remains asserted until the supply voltage reaches the reset threshold level and maintains for a specified period, ensuring proper system reset.

Key features of the MAX6829TIUT+T include:

• Precision Monitoring of +3V, +3.3V, and +5V Power-Supply Voltages: This device is designed to accurately monitor power supply voltages, ensuring that the system has a stable power supply before allowing the microprocessor to operate.
• Fully Specified Over Temperature: The MAX6829TIUT+T is guaranteed to operate over the full temperature range, making it reliable for various environmental conditions.
• 140ms min Power-On Reset Pulse Width: The device generates a minimum reset pulse width of 140ms, providing ample time for the µP and other devices to stabilize upon power-up.
• Low Power Consumption: With its low power consumption, it helps in extending the battery life in portable applications.
• Manual Reset Input: It features a manual reset input that allows for a system reset to be triggered with an external switch or logic signal.
• No External Components: The MAX6829TIUT+T does not require external components, simplifying the design and reducing the overall bill of materials.

Overall, the MAX6829TIUT+T from Maxim Integrated is an effective solution for system monitoring and provides a reliable reset output that ensures proper operation of microprocessor-based systems. Its small size and precision make it an ideal choice for a wide range of applications, including portable devices, computers, controllers, and intelligent instruments.