Maxim Integrated MAX6831SFUT+T Voltage Supervisor IC

The MAX6831SFUT+T from Maxim Integrated is a highly reliable, low-power microprocessor (µP) supervisory circuit designed to monitor power supplies in µP and digital systems. It provides excellent circuit reliability and low cost by eliminating external components and adjustments when used with 3.3V-powered circuits.

This compact voltage supervisor IC comes in a SOT-23 package, making it ideal for space-constrained applications. The MAX6831SFUT+T is specifically designed to maintain system integrity by monitoring the power supply voltage. In the event of a power failure or brownout condition, it asserts a reset signal to prevent the µP from executing erroneous instructions, which could lead to data corruption or system malfunctions.

Key features of the MAX6831SFUT+T include:

• A precise factory-set reset threshold voltage to ensure reliable operation without the need for external adjustments.
• An active-low RESET output that remains asserted for a minimum of 140ms after V<sub>CC has risen above the reset threshold. This provides ample time for the system to stabilize before the processor starts executing code.
• Low supply current of 1.5µA, which is ideal for battery-operated applications where power efficiency is critical.
• Immunity to short V<sub>CC transients, ensuring stable operation even in noisy environments.
• Capability to operate over a wide temperature range of -40°C to +125°C, accommodating various application conditions from industrial to automotive environments.

The MAX6831SFUT+T is perfect for use in portable devices, computers, controllers, and intelligent instruments where power monitoring is essential to protect the integrity of data and system functionality. Its ease of integration and robust feature set make it a go-to choice for designers looking to enhance system reliability with minimal design effort.

Overall, the Maxim Integrated MAX6831SFUT+T represents a blend of simplicity, efficiency, and precision, providing a cost-effective solution for power monitoring in critical applications.