Maxim Integrated MAX6809LEUR+T Microprocessor (µP) Supervisory Circuit

The MAX6809LEUR+T is a high-quality, reliable microprocessor supervisory circuit designed by Maxim Integrated to monitor power supplies in digital systems. This device is particularly well-suited for portable and battery-powered applications due to its low power consumption and compact design. The MAX6809LEUR+T ensures that the microprocessor (µP), microcontroller (MCU), or other digital systems reset to a known state during power-up, power-down, or brown-out conditions.

This supervisory circuit comes in a small 3-pin SOT-23 package, making it an ideal choice for space-constrained applications. The MAX6809LEUR+T operates over a wide voltage range and offers factory-trimmed reset threshold voltages, ensuring precise monitoring of the power supply voltage without the need for external components.

Key features of the MAX6809LEUR+T include:

• Low Power Consumption: With its low quiescent current, the device is optimized for battery-powered equipment, extending battery life and reducing the overall power footprint of the system.
• Programmable Reset Timeout: The device offers a programmable reset timeout delay, allowing designers to customize the reset deassertion to match specific system requirements.
• High Accuracy: The reset threshold voltage is factory trimmed to high accuracy, which provides reliable monitoring without the need for external adjustments.
• Manual Reset Input: A manual reset input is provided, enabling a system reset to be initiated by external hardware or software events.
• Immune to Short V<sub>CC Transients: The MAX6809LEUR+T is designed to ignore short transients on the V<sub>CC line, providing stable operation under fluctuating power conditions.

With its robust feature set, the MAX6809LEUR+T is an excellent choice for applications requiring a dependable reset signal for their digital systems. Its ease of integration, coupled with Maxim Integrated's reputation for quality, makes this supervisory circuit a go-to solution for engineers looking to enhance system reliability and performance.

Whether used in personal electronics, embedded systems, or industrial controllers, the MAX6809LEUR+T delivers the performance and precision that modern digital applications demand.