ON Semiconductor NCP803SN400T1G Product Overview

The ON Semiconductor NCP803SN400T1G is a highly reliable, precision microprocessor supervisory circuit designed to monitor the power supply and microprocessor activity in digital systems. It serves as a critical component for system stability, ensuring that the microprocessor and associated digital circuitry operate within the specified voltage range and are properly reset during power-up, power-down, or brown-out conditions.

Key Features of NCP803SN400T1G

• Voltage Monitoring: The device features a fixed sense threshold voltage of 4.0V, making it suitable for monitoring 5V power supply systems with a tight tolerance for voltage deviations.
• Low Power Consumption: Designed for power-sensitive applications, it consumes minimal power, thereby reducing the overall power requirement of the system it monitors.
• Reset Signal: It provides an active-low reset signal, ensuring that the connected microprocessor is held in the reset condition until the system voltage stabilizes.
• Manual Reset Input: An additional manual reset input allows for an external trigger to initiate a system reset, providing flexibility for system maintenance or emergency situations.
• Compact Package: The device comes in a compact SOT-23 package, which is ideal for space-constrained applications while still offering robust performance.
• High Accuracy: It offers high accuracy in monitoring the supply voltage, which is crucial for reliable system operation and avoiding unpredictable behavior caused by voltage fluctuations.

Applications

The NCP803SN400T1G is suitable for a wide range of applications in various industries, including:

• Computers and computer peripherals
• Consumer electronics
• Portable and battery-powered devices
• Communication systems
• Industrial equipment

With its precision voltage monitoring and low power consumption, the NCP803SN400T1G from ON Semiconductor is an essential component for system designers looking to enhance the reliability and stability of their digital systems. Its integration into a system helps to protect against data loss and hardware damage that can result from improper power supply conditions, contributing to the overall longevity and robustness of the application it serves.