Product Overview: MAX6842FUKD+T from Maxim Integrated

The MAX6842FUKD+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, +3V, +3.3V, or +5V power supply. This versatile component is ideal for portable equipment, computers, controllers, and intelligent instruments where precise monitoring and control of system power are necessary.

This supervisory circuit ensures that the microprocessor is reset to a known state during power-up, power-down, or brown-out conditions. The reset output remains asserted for a minimum of 140ms after V_CC has risen above the reset threshold level, ensuring that the system has sufficient time to stabilize before the processor begins operation. The MAX6842FUKD+T features a factory-trimmed reset threshold voltage, which means no external adjustments are needed, simplifying design and manufacturing processes.

The device is available in a compact SOT23-5 package, making it suitable for space-constrained applications. It operates over a wide temperature range of -40°C to +125°C, catering to the needs of various industrial and automotive environments. The MAX6842FUKD+T also features a low supply current of only 3µA (typical), which helps to extend battery life in portable applications.

Key features of the MAX6842FUKD+T include:

• Factory-Set Reset Threshold Voltages for +2.5V, +3V, +3.3V, and +5V Supplies
• Low 3µA Supply Current
• 140ms (min) Reset Timeout Period
• Immune to Short V_CC Transients
• Wide Operating Temperature Range: -40°C to +125°C
• Compact SOT23-5 Package

With its combination of features, the MAX6842FUKD+T is a reliable solution for system designers looking to enhance the operational stability of their digital systems. Maxim Integrated's commitment to quality ensures that this supervisory circuit will maintain system integrity through a variety of conditions and applications.