The MAX824TEUK-T from Maxim Integrated is a highly reliable, low-power microprocessor (µP) supervisory circuit designed to monitor power supplies in digital systems and provide a significant level of system reliability and accuracy. This supervisory IC ensures that the µP and its peripherals are reset properly during power-up, power-down, and brown-out conditions.

With its compact SOT-23 packaging, the MAX824TEUK-T is optimized for space-constrained applications. It features a precision factory-trimmed threshold voltage that allows for accurate monitoring of the power supply. The device boasts a low quiescent current of only 3µA (typical) at +3.3V, making it an excellent choice for portable and battery-operated equipment.

Key features of the MAX824TEUK-T include:

• Factory-trimmed V_CC reset threshold voltage for high accuracy
• Low 3µA supply current, ideal for battery-powered devices
• Active-low, push-pull RESET output
• Guaranteed RESET output valid down to V_CC = +1.0V
• Power supply transient immunity, ensuring stable operation during voltage fluctuations
• Temperature range of -40°C to +85°C, suitable for industrial applications

The MAX824TEUK-T's RESET output remains active for a minimum of 140ms after V_CC has risen above the reset threshold level, providing a sufficient reset delay time. This feature ensures that the system microprocessor has adequate time to initialize and stabilize after a reset event.

Applications for this voltage supervisor IC span a wide range of electronic systems, including:

• Computers and controllers
• Portable/battery-powered equipment
• Intelligent instruments
• Embedded systems
• Automotive systems

Overall, the MAX824TEUK-T from Maxim Integrated is a versatile and efficient solution for system monitoring and protection, ensuring reliable operation and extended life for a variety of electronic products.