The MAX6326-22W is a precision microprocessor (µP) supervisory circuit designed by NXP 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 2.2V power supply voltage.

Key Features

• Voltage Monitoring: The device is specifically tailored to monitor a 2.2V power supply, ensuring that the system operates within the optimal voltage range.
• Reset Output: It features an active-low reset output that remains asserted for a minimum of 140ms after VCC has risen above the reset threshold. This provides a stable reset signal to the microprocessor, preventing erroneous operation during power-up.
• Low Power Consumption: Designed for energy-sensitive applications, the MAX6326-22W operates with a very low supply current, making it ideal for portable and battery-operated devices.
• High Accuracy: It offers a high degree of accuracy in monitoring the supply voltage, ensuring reliable operation and protection for the µP and other critical circuit components.
• Compact Package: Available in a small SOT23 package, it is suitable for space-constrained applications.

Applications

The MAX6326-22W is versatile and can be employed in a wide range of applications, including:

• Computers and Controllers
• Portable/Battery-Powered Equipment
• Intelligent Instruments
• Embedded Systems

Product Benefits

This supervisory circuit is designed to enhance system reliability with its reset feature, ensuring that the µP and other devices have a proper startup sequence. The low power consumption extends battery life in portable applications, while the high accuracy provides a robust safeguard against undervoltage conditions. The compact footprint of the MAX6326-22W makes it an excellent choice for designs where board space is at a premium.

Conclusion

The MAX6326-22W from NXP stands out as a reliable and efficient solution for voltage monitoring in a variety of digital systems. Its combination of features ensures that it can meet the needs of a broad spectrum of applications, from portable devices to complex industrial systems.