onsemi

NCP1051ST44T3G

NCP1051ST44T3G Description

The NCP1051ST44T3G is an offline switch flyback power management IC designed by onsemi. This device is part of the NCP1051 family and is optimized for delivering up to 40 watts of power with a switching frequency of 44kHz. It features an internal switch with a breakdown voltage of 700V, making it suitable for high-voltage applications. The IC operates within a supply voltage range of 7.5V to 10V and is designed for surface mount applications, packaged in a Tape & Reel (TR) format. The NCP1051ST44T3G is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards. It also has a moisture sensitivity level (MSL) of 1, making it suitable for unlimited storage periods.

NCP1051ST44T3G Features

• High Power Output: Capable of delivering up to 40 watts of power, making it suitable for high-power applications.
• Internal Switch: Equipped with an internal switch that simplifies the design and reduces the component count.
• High Switching Frequency: Operates at a switching frequency of 44kHz, which allows for smaller external components and compact designs.
• Wide Input Voltage Range: Functions within a supply voltage range of 7.5V to 10V, providing flexibility in power supply options.
• Fault Protections: Includes current limiting, open loop, over load, and over temperature protections, ensuring reliable operation and enhanced safety.
• High Efficiency: Achieves a duty cycle of 77%, contributing to efficient power conversion.
• Isolated Output: Provides isolated output, which is essential for applications requiring galvanic isolation.
• Compliance and Environmental Standards: REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards.
• Moisture Sensitivity Level: MSL 1 (Unlimited), allowing for extended storage periods without degradation.

NCP1051ST44T3G Applications

The NCP1051ST44T3G is ideal for a variety of applications requiring high power output and efficient power conversion. Some specific use cases include:

• Adaptive Power Supplies: Suitable for power supplies that need to adapt to varying input voltages and load conditions.
• Consumer Electronics: Ideal for powering devices such as televisions, monitors, and other high-power consumer electronics.
• Industrial Equipment: Can be used in industrial applications where high power and reliability are critical.
• Telecommunications: Applicable in telecom equipment requiring isolated power supplies for safety and performance.
• Power Adapters: Efficient for designing power adapters that need to deliver significant power with minimal size and weight.

Conclusion of NCP1051ST44T3G

The NCP1051ST44T3G is a robust and versatile offline switch flyback power management IC designed for high-power applications. Its combination of high power output, internal switch, and high switching frequency makes it an attractive choice for designers looking to achieve compact and efficient power solutions. The inclusion of comprehensive fault protections and compliance with environmental standards further enhances its appeal. While the product is marked as obsolete, it remains a reliable option for existing designs and applications requiring its specific features and performance benefits.