The Maxim Integrated MAX823SEUK is a compact, high-precision microprocessor (µP) supervisory circuit designed 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 +3V to +5V power supply voltage.

Key Features

• Voltage Monitoring: This device ensures that the microprocessor is reset to a known state during power-up, power-down, or brown-out conditions. It actively monitors the VCC and provides a reset signal to the connected µP during instances where the supply voltage falls below the preset threshold.
• Reset Timeout: The MAX823SEUK features an internally fixed timeout period of 140ms (min) that provides a reset signal delay, ensuring system stability during transient conditions.
• Low Power Consumption: Designed for power-sensitive applications, this device consumes minimal power with a typical supply current of only 1.2µA, making it ideal for portable and battery-operated equipment.
• Compact SOT23 Packaging: The small SOT23-5 package saves space on the PCB, allowing for more compact system designs.
• Manual Reset Input: An additional feature includes a manual reset input that enables the user to trigger a system reset with an external switch or logic signal.

Applications

The MAX823SEUK is versatile and can be employed in a variety of applications where reliable system reset functionality is crucial. Common applications include:

• Portable/Battery-Powered Equipment
• Computers and Controllers
• Embedded Systems
• Intelligent Instruments
• Automotive Systems

With its robust feature set and Maxim Integrated's reputation for high-quality components, the MAX823SEUK is an excellent choice for design engineers looking to enhance system reliability and performance in their digital systems.