The MAX6348-46W is a robust, precision microprocessor (µP) supervisory circuit from NXP designed to monitor power supplies in digital systems. It ensures that the µP and its peripherals are powered up in the proper sequence and operate reliably. This supervisory circuit is particularly crucial in systems that require a high degree of reliability and performance.

Key Features

• Voltage Monitoring: The device features precision monitoring of 4.6V power supplies, making it ideal for 5V systems. It provides a reset signal to the µP during power-up, power-down, and brown-out conditions.
• Reset Timeout: The MAX6348-46W comes with a fixed reset timeout period of 140ms (min), ensuring that the system has sufficient time to stabilize before the µP begins operation.
• Low Power Consumption: Designed for energy-efficient applications, this supervisory circuit has a low supply current of 1.2µA, making it suitable for battery-operated devices.
• High Accuracy: The reset threshold accuracy is maintained at ±2.5% over the entire temperature range, ensuring reliable operation under varying conditions.
• Temperature Range: The device operates over an extended temperature range of -40°C to +125°C, which is ideal for industrial applications that may be subject to extreme environments.

Applications

The MAX6348-46W is versatile and can be used in a wide range of applications, including:

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

Package and Availability

The device is available in a compact SOT-23 package, which is suitable for space-constrained applications. It is also available in other standard packages, providing flexibility for various design needs. The MAX6348-46W is part of NXP's commitment to providing reliable and high-quality components for the electronics industry.

For detailed specifications, application notes, and additional resources, engineers and product designers are encouraged to consult the datasheet and support documentation available from NXP Semiconductors.