The MAX6348UR46-T is a 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 in systems that require voltage monitoring.

This device is particularly suitable for portable and compact designs due to its small SOT23 packaging. It ensures that the µP is only operational when the power supply is within an acceptable range. If the monitored supply voltage drops below the factory-set reset threshold, the MAX6348UR46-T asserts a reset signal to prevent system errors. The reset signal remains asserted for a minimum of 140ms after the supply voltage rises above the reset threshold, ensuring the system has adequate time to stabilize.

Key features of the MAX6348UR46-T include:

• Precision Monitoring: This device offers a precision voltage monitor with a factory-set reset threshold of 4.6V, tailored for 5V power supplies.
• Low Power Consumption: With its low supply current of 1.2µA (typical), it is ideal for battery-operated applications.
• Manual Reset Input: It includes a manual reset input that allows for a reset to be triggered with an external signal.
• Reset Output: The open-drain reset output ensures compatibility with multiple microprocessor configurations and can be wire-ORed with other open-drain or open-collector outputs.
• Robust Operation: The device is designed to operate over a wide temperature range of -40°C to +125°C, accommodating diverse environmental conditions.

The MAX6348UR46-T is an indispensable component for systems where precise voltage monitoring is critical. It is widely used in applications such as computers, controllers, intelligent instruments, portable/battery-powered equipment, and other microprocessor-based systems. Maxim Integrated's commitment to quality and reliability makes the MAX6348UR46-T a trusted choice for designers looking to enhance system integrity.