onsemi

NCP1050ST100T3

NCP1050ST100T3 Description

The NCP1050ST100T3 is an obsolete offline switch IC designed for flyback topology applications, manufactured by onsemi. This surface-mount device is housed in a SOT223 package and is ideal for AC-DC conversion in various power supply applications. It features an internal switch capable of handling up to 700V breakdown voltage and operates within a supply voltage range of 7.5V to 10V. The NCP1050ST100T3 is designed to start up at a minimum voltage of 8.5V and offers a switching frequency of 100kHz, ensuring efficient power conversion. With a maximum power output of 40W and a duty cycle of 77%, IC this provides robust performance in compact designs.

NCP1050ST100T3 Features

• Internal Switch: Equipped with an internal switch, the NCP1050ST100T3 simplifies circuit design and reduces component count.
• High Breakdown Voltage: The 700V breakdown voltage ensures reliable operation in high-voltage applications.
• Wide Supply Voltage Range: Operates efficiently within a 7.5V to 10V supply voltage range, making it versatile for various power supply designs.
• Efficient Switching Frequency: A 100kHz switching frequency allows for high-frequency operation, reducing the size of external components.
• Robust Fault Protection: Features current limiting, open loop, over load, and over temperature protection, enhancing system reliability and safety.
• Isolated Output: Provides isolated output, ensuring safe and reliable power conversion.
• Moisture Sensitivity Level: MSL 1 (Unlimited) indicates high resistance to moisture, suitable for a wide range of environmental conditions.
• Compliance: REACH unaffected and ECCN EAR99 ensure compliance with international regulations.

NCP1050ST100T3 Applications

The NCP1050ST100T3 is well-suited for applications requiring efficient AC-DC conversion and compact design. Specific use cases include:

• Consumer Electronics: Ideal for powering small appliances and devices where space is limited.
• Industrial Equipment: Suitable for control systems and instrumentation that require isolated power supplies.
• Telecommunications: Can be used in power supplies for networking equipment and communication devices.
• Medical Devices: Applicable in medical equipment where isolated power supplies are necessary for safety and reliability.

Conclusion of NCP1050ST100T3

The NCP1050ST100T3 offers a comprehensive solution for offline switch applications with its robust technical specifications and performance benefits. Despite being obsolete, it remains a reliable choice for applications requiring efficient power conversion, high-voltage handling, and compact design. Its unique features, such as the internal switch, high breakdown voltage, and comprehensive fault protection, provide significant advantages over similar models. The NCP1050ST100T3 is particularly ideal for applications in consumer electronics, industrial equipment, telecommunications, and medical devices, where reliable and efficient power supply is crucial.