The NCP1605ADR2G, from ON Semiconductor, is a cutting-edge power factor correction (PFC) controller integrated circuit designed for use in switch mode power supplies. This device is particularly well-suited for applications requiring high efficiency and power factor correction, such as desktop power supplies, flat-panel television power units, and other AC-DC adapters for consumer electronics.

Key Features

• Active Power Factor Correction: The NCP1605ADR2G employs an active PFC approach, enabling power supply designs to achieve a power factor close to unity, which is essential for meeting regulatory standards and reducing power consumption.
• High Integration: This IC integrates a number of functions to minimize external component count, including a startup current source and a high-voltage startup circuit, which simplifies the design process and helps reduce overall system cost.
• Frequency Foldback: To improve efficiency at light loads, the NCP1605ADR2G features frequency foldback, which reduces switching losses by lowering the switching frequency as the load decreases.
• Brown-out Protection: The built-in brown-out protection ensures stable operation during periods of low input voltage, preventing damage to the power supply and connected devices.
• Overvoltage Protection: This IC also includes overvoltage protection to safeguard the power supply and downstream components from potential damage due to voltage spikes.

Applications

The versatility and efficiency of the NCP1605ADR2G make it an ideal choice for a wide range of applications, including:

• Desktop power supplies
• Flat-panel television power units
• AC-DC adapters for laptops and other portable devices
• Power supplies for printers, scanners, and other office equipment

Environmental and Quality Certifications

The NCP1605ADR2G is designed with a commitment to environmental sustainability and quality, featuring:

• Pb-Free and RoHS compliant packaging
• Halogen-free construction
• Manufactured in ISO/TS16949 certified facilities

With its robust feature set and ON Semiconductor's reputation for quality, the NCP1605ADR2G is an excellent choice for designers looking to create efficient and reliable power solutions.