The MAX6428MRUR+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 with a single +2.5V to +5.5V power supply voltage. This supervisory circuit is particularly suitable for portable and battery-powered applications due to its low power consumption and small footprint.

Key Features

• Precision Monitoring: The device features a precision voltage monitor with a factory-set reset threshold voltage, ensuring that the µP is reset to a known state during a power failure or brownout condition.
• Low Power Consumption: With its low supply current of only 1.2µA (typical), the MAX6428MRUR+T is optimized for battery-powered and portable applications, helping to extend battery life.
• Compact SOT23 Packaging: The device comes in a small, 3-pin SOT23 package, which is ideal for space-constrained applications.
• Manual Reset Input: A manual reset input is provided, allowing for a system reset to be triggered with an external pushbutton or logic signal.
• Reset Timeout: The MAX6428MRUR+T offers a fixed reset timeout period to ensure proper system recovery after a reset event.

Applications

• Portable/Battery-Powered Equipment
• Computers and Controllers
• Embedded Systems
• Data Storage
• Industrial and Medical Equipment

The MAX6428MRUR+T supervisory circuit is engineered to maintain system integrity by monitoring the power supply voltage and asserting a reset signal whenever the monitored voltage drops below the factory-set threshold. Its ease of integration, combined with its robust feature set, makes it an excellent choice for designers looking to enhance system reliability without compromising on space or power efficiency.