onsemi

NCP1249AD65R2G

NCP1249AD65R2G Description

The NCP1249AD65R2G is an offline switch designed for flyback topology applications, manufactured by onsemi. This integrated circuit (IC) is specifically engineered for AC-DC conversion and is housed in a 9-lead SOIC package, suitable for surface mount applications. Despite being marked as obsolete, the NCP1249AD65R2G remains a robust solution for various power conversion needs, offering a comprehensive suite of fault protection features and a wide input voltage range.

NCP1249AD65R2G Features

The NCP1249AD65R2G several boasts key technical specifications that make it a reliable choice for power conversion applications:

• Topology: Flyback, which is ideal for isolated power supplies and offers high efficiency and simplicity.
• Mounting Type: Surface Mount, facilitating easy integration into compact and high-density designs.
• Fault Protection: Comprehensive protection against over load, over power, over temperature, over voltage, and short circuit conditions ensures robustness and reliability.
• Frequency - Switching: Operates at a of frequency 65kHz, balancing efficiency and electromagnetic interference (EMI) considerations.
• Voltage - Start Up: Requires a minimum startup voltage of 18V, ensuring reliable operation in various input conditions.
• Duty Cycle: Capable of up to 80% duty cycle, providing flexibility in design and operation.
• Voltage - Supply (Vcc/Vdd): Wide supply voltage range of 10V to 30V, accommodating a variety of input.
  sources- Package: Tape & Reel (TR), ensuring ease of handling and automated assembly processes.
• Moisture Sensitivity Level (MSL): Level 1 (Unlimited), making it suitable for a wide range of environmental conditions without additional handling precautions.

NCP1249AD65R2G Applications

The NCP1249AD65R2G is well-suited for a variety of applications where isolated power supplies are required. Its flyback topology and comprehensive protection features make it ideal for:

• Consumer Electronics: Power supplies for devices such as televisions, monitors, and other consumer electronics where reliability and efficiency are paramount.
• Industrial Equipment: Isolated power supplies in industrial control systems, ensuring safe and reliable operation in harsh environments.
• Medical Devices: Power supplies in medical equipment where isolation is critical for patient safety and regulatory compliance.
• Telecommunications: Powering telecommunication equipment, including base stations and networking devices, where high efficiency and reliability are essential.

Conclusion of NCP1249AD65R2G

The NCP1249AD65R2G, despite its obsolete status, remains a viable option for designers seeking a reliable and efficient offline switch for flyback topology applications. Its wide input voltage range, comprehensive fault protection, and surface mount compatibility make it a versatile component suitable for a variety of power conversion needs. While newer models may offer enhanced features, the NCP1249AD65R2G continues to provide a robust and cost-effective solution for applications requiring isolated power supplies.