Maxim Integrated MAX6321HPUK46CY Microprocessor Supervisory Circuit

The MAX6321HPUK46CY is a 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 with +5V-powered circuits.

This supervisory circuit is ideal for use in systems that require a high level of stability and accuracy in voltage monitoring, such as computers, controllers, and intelligent instruments. The MAX6321HPUK46CY ensures that the microprocessor always starts up in a known state and helps to prevent code execution errors during power-up, power-down, and brownout conditions.

Key Features

• Precision Voltage Monitoring: The MAX6321HPUK46CY supervisory IC monitors the system voltage with a precision threshold, ensuring reliable reset operation without false triggering.
• Power Supply Glitch Immunity: This device maintains reset operation over a minimum time period (typically 140ms) to ensure proper system reset during power-up, power-down, and brownout conditions.
• Low Power Consumption: With its low supply current of 1.2µA (typical), the MAX6321HPUK46CY is suitable for power-sensitive applications.
• Manual Reset Input: The manual reset input allows for a system reset to be initiated with an external pushbutton or logic signal.
• Compact SOT23 Packaging: The device is available in a small, 5-pin SOT23 package, making it suitable for space-constrained applications.

Applications

• Computers and Servers
• Embedded Systems
• Data Storage Equipment
• Portable/Battery-Powered Equipment
• Intelligent Instruments

The MAX6321HPUK46CY from Maxim Integrated is an excellent choice for designers looking for a reliable and cost-effective solution to protect their digital systems from the dangers of unpredictable power supply conditions. Its precision monitoring capabilities and robust feature set make it an essential component for maintaining system integrity and performance.