Maxim Integrated MAX6823YUK Microprocessor Reset Circuit

The MAX6823YUK from Maxim Integrated is a compact, highly efficient microprocessor (µP) supervisory circuit designed to monitor power supplies in digital systems. It provides excellent circuit reliability and low-cost by ensuring that all the µP's support circuits are fully functional before the processor starts operating and continuously monitors the power supply during operation. This device is particularly well-suited for portable and space-constrained applications due to its small SOT23 package.

One of the key features of the MAX6823YUK is its ability to assert a reset signal whenever the VCC supply voltage declines below a preset threshold, ensuring that the µP resets cleanly during power-up, power-down, and brownout conditions. The reset output remains asserted for a preset timeout period after VCC has risen above the reset threshold level, providing the system with sufficient time to stabilize.

The device offers a variety of factory-trimmed threshold voltages suitable for monitoring different levels of supply voltages, catering to a wide range of applications. Additionally, the MAX6823YUK offers low supply current, making it an ideal choice for battery-operated equipment.

Key features of the MAX6823YUK include:

• Factory-set reset threshold voltages
• Low supply current of 1µA (typical)
• Guaranteed reset valid to VCC = 1V
• Reset timeout periods available in several options
• Immune to short VCC transients
• Compact SOT23 packaging

With its precision voltage monitoring and low power consumption, the MAX6823YUK is an excellent choice for managing power in microcontrollers, computers, controllers, and intelligent instruments. Its small footprint and robust feature set make it a versatile component for ensuring reliable operation of electronic systems across various industries, including consumer electronics, automotive, telecommunications, and more.

Maxim Integrated's commitment to quality and performance is evident in the MAX6823YUK, making it a dependable solution for critical system monitoring tasks where space and power efficiency are paramount.