Maxim Integrated MAX6748KA+T

The Maxim Integrated MAX6748KA+T is a precision, low-power 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 5V power supply voltage. This device is particularly well-suited for portable and battery-powered applications due to its low power consumption and compact SOT23 package.

The MAX6748KA+T offers a variety of features to ensure the stable operation of the microprocessor under varying power conditions. It includes a reset output that remains asserted for a minimum of 140ms after VCC has risen above the reset threshold, ensuring that the μP is reset properly on power-up. The reset threshold voltage for the MAX6748KA+T is factory-set to a precise value, eliminating the need for external resistors and trimming.

In addition to its reset function, this supervisory circuit includes a manual reset input which allows the user to trigger a reset with an external pushbutton or logic signal. This feature is particularly useful for debugging and testing purposes or for allowing the user to reset the system without cycling the power.

The MAX6748KA+T operates over a wide temperature range of -40°C to +125°C, making it suitable for industrial applications where temperature extremes are common. The device's low supply current of 6µA (typ) is ideal for battery-powered applications, as it helps to extend battery life.

Key features of the MAX6748KA+T include:

• Factory-set reset threshold for 5V systems
• Minimum 140ms reset timeout period
• Manual reset input
• Low supply current: 6µA (typ)
• Wide operating temperature range: -40°C to +125°C
• Compact SOT23 package

Overall, the Maxim Integrated MAX6748KA+T is a reliable and efficient solution for system monitoring and power management, providing peace of mind for designers looking to enhance system stability and prolong operational lifespan.