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SG6961DZ

SG6961DZ Description

The SG6961DZ is a Power Factor Controller IC designed by Fairchild Semiconductor, now part of onsemi. This device is specifically engineered for critical conduction mode (CRM) applications, ensuring efficient power factor correction (PFC) in various power supply systems. The SG6961DZ operates within a switching frequency range of 50kHz and is compatible with a supply voltage range of 12V to 20V. It features a low startup current of 10 µA, making it suitable for energy-efficient designs. The device is housed in a through-hole package, specifically a tube, and is designated under the HTSUS code 8542.39.0001. The SG6961DZ is ROHS3 compliant, adhering to stringent environmental standards. Although the product is now obsolete, its robust design and performance make it a reliable choice for legacy systems.

SG6961DZ Features

• Critical Conduction Mode (CRM): The SG6961DZ operates in CRM, which ensures that the inductor current is continuous, thereby improving the power factor and reducing harmonic distortion.
• Wide Supply Voltage Range: With a supply voltage range of 12V to 20V, the SG6961DZ is versatile and can be used in a variety of power supply applications.
• Low Startup Current: The device has a low startup current of 10 µA, which is beneficial for applications requiring minimal power consumption during startup.
• Through-Hole Mounting: The through-hole package makes it suitable for applications where surface-mount technology is not feasible, ensuring robust mechanical stability.
• ROHS3 Compliance: The SG6961DZ meets the ROHS3 compliance standards, ensuring that it is free from harmful substances and environmentally friendly.
• Obsolete Product Status: While the product is obsolete, its reliability and performance make it a suitable choice for maintaining existing systems or for applications where modern alternatives are not available.

SG6961DZ Applications

The SG6961DZ is ideal for a range of applications requiring efficient power factor correction. Some specific use cases include:

• Power Supplies: The device is well-suited for power supplies in consumer electronics, industrial equipment, and telecommunications infrastructure.
• Energy-Efficient Systems: The low startup current and wide supply voltage range make it suitable for applications where energy efficiency is a priority.
• Legacy Systems: Given its obsolete status, the SG6961DZ is particularly useful for maintaining or upgrading legacy systems where modern PFC ICs may not be compatible.
• Industrial Applications: The robust through-hole package ensures that the device can withstand harsh industrial environments, making it suitable for industrial power supplies and control systems.

Conclusion of SG6961DZ

The SG6961DZ is a reliable Power Factor Controller IC, offering critical conduction mode operation, a wide supply voltage range, and low startup current. Its through-hole package and ROHS3 compliance make it suitable for a variety of applications, particularly in power supplies and energy-efficient systems. Although the product is now obsolete, its robust design and performance characteristics ensure that it remains a viable option for legacy systems and applications where modern alternatives are not available. For engineers and designers working with existing systems or requiring a reliable PFC solution, the SG6961DZ is a proven choice.