Product Overview: MAX6389XS46D3+T by Maxim Integrated

The MAX6389XS46D3+T is a robust, precision 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 well-suited for portable electronics, computers, controllers, and intelligent instruments where it ensures that the system's voltage levels remain within operational thresholds.

Key Features

• Voltage Monitoring: The MAX6389XS46D3+T supervises a preset threshold voltage of 4.63V, which is crucial for systems that operate at a 5V supply voltage. It helps to prevent system failures by resetting the μP during power-up, power-down, and brownout conditions.
• Reset Timeout: It has a fixed timeout period of 280ms (minimum) for the reset signal, providing ample time for the μP to initialize properly during power-up.
• Low Power Consumption: With its low supply current of 1.2μA (typical), this device is ideal for power-sensitive applications, helping to extend battery life in portable devices.
• High Accuracy: The reset threshold accuracy is maintained at ±2% over temperature, which ensures reliable monitoring and reset activation under varying conditions.
• Operating Temperature Range: It is designed to function over an extended temperature range of -40°C to +125°C, making it suitable for industrial applications.
• Packaging: The MAX6389XS46D3+T comes in a small, 4-pin SC70 package, which is excellent for space-constrained applications.

Applications

The compact size and precision features of the MAX6389XS46D3+T make it an ideal choice for a wide array of applications. It is commonly used in:

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

Maxim Integrated's commitment to quality and reliability is evident in the MAX6389XS46D3+T supervisory circuit, making it a trusted component for ensuring system stability and integrity across various electronic applications.