ON Semiconductor NCP303LSN31T1 Voltage Detector

The ON Semiconductor NCP303LSN31T1 is a precision micro-power voltage detector designed for the management of battery-powered systems. This compact device is a crucial component for ensuring the stability and reliability of electronic circuits by monitoring the supply voltage and providing a reset signal whenever the voltage falls below a predetermined threshold.

Key Features

• Voltage Threshold: The NCP303LSN31T1 has a fixed voltage threshold of 3.1V, making it suitable for 3.3V powered applications that require a certain margin for undervoltage detection.
• Low Power Consumption: With a quiescent current of typically 0.5 µA, it is an ideal choice for battery-operated devices where power efficiency is critical.
• High Accuracy: This device offers a tight threshold accuracy of ±1.5%, ensuring reliable reset activation and system protection.
• Fast Response Time: It features a fast response time which is essential for prompt system recovery and protection against undesirable voltage drops.
• Operating Temperature Range: It operates over a wide temperature range from -40°C to 85°C, accommodating various environmental conditions.
• Output Type: The voltage detector provides an active low, open-drain reset output, which can be easily interfaced with a microcontroller or other logic systems.

Applications

The NCP303LSN31T1 is versatile and can be employed in a variety of applications, including:

• Portable and wearable electronics
• Microprocessor/microcontroller systems
• Power supply monitoring
• Automotive electronics
• Healthcare devices

This voltage detector is housed in a compact SOT-23-5 package, making it space-efficient for design in tight PCB layouts. The NCP303LSN31T1 is a reliable solution for systems that require accurate voltage monitoring to protect against undervoltage conditions, ensuring the proper function and longevity of electronic components.

By integrating the NCP303LSN31T1 into your design, you can enhance the stability and safety of your electronic systems, safeguarding them from the risks associated with unexpected power drops.