onsemi

MC33368P  

Power Factor Correction ICs

MC33368P Description

The MC33368P is a Power Factor Correction (PFC) controller IC designed for critical conduction mode (CRM) applications. Manufactured by onsemi, this IC is part of the GreenLine™ series, known for its efficiency and reliability. The MC33368P operates within a supply voltage range of 10V to 16V and features a startup current of 16 mA, ensuring smooth and efficient startup procedures. It is housed in a through-hole package, specifically a 16-pin DIP, making it suitable for a variety of applications where through-hole mounting is preferred. The product is classified under HTSUS code 8542.39.0001 and has a moisture sensitivity level (MSL) of 1, indicating it is unaffected by moisture and can be stored without limitations. The MC33368P is REACH unaffected, ensuring compliance with environmental regulations. Although the product is now obsolete, its robust design and performance make it a reliable choice for legacy systems and specific applications where CRM control is essential.

MC33368P Features

• Critical Conduction Mode (CRM): The MC33368P operates in CRM, which allows for high efficiency across a wide range of load conditions. This mode of operation ensures that the inductor current drops to zero at each switching cycle, minimizing energy loss and improving overall system efficiency.
• Wide Supply Voltage Range: With a supply voltage range of 10V to 16V, the MC33368P is versatile and can be used in various power supply designs, accommodating different input voltage requirements.
• Low Startup Current: The IC features a low startup current of 16 mA, which is crucial for applications where minimal power consumption during startup is required. This characteristic helps in reducing the overall power consumption and improving the efficiency of the system.
• Through-Hole Packaging: The through-hole package (16DIP) ensures robust mechanical stability and ease of integration into existing designs. This type of packaging is particularly advantageous in applications where surface-mount technology (SMT) may not be suitable.
• REACH Compliance: The MC33368P is REACH unaffected, ensuring that it meets stringent environmental regulations and can be used in applications where compliance is mandatory.
• Moisture Sensitivity Level (MSL): With an MSL of 1 (Unlimited), the MC33368P can be stored and handled without the need for special moisture protection measures, simplifying inventory management and reducing costs.

MC33368P Applications

The MC33368P is ideal for a variety of applications where power factor correction is necessary. Some specific use cases include:

• Power Supplies: The MC33368P is well-suited for AC-DC power supplies, particularly those requiring high efficiency and power factor correction. Its CRM operation ensures that the power supply can maintain high efficiency across a wide load range.
• Industrial Equipment: In industrial settings, where power quality and efficiency are critical, the MC33368P can be used to control power factor correction in various equipment, ensuring compliance with power quality standards.
• Telecommunications: The IC can be integrated into telecom power systems, where reliable power factor correction is essential for maintaining efficient power delivery and minimizing energy loss.
• Legacy Systems: Given its obsolete status, the MC33368P is particularly useful for maintaining and upgrading legacy systems where CRM control is required and newer alternatives may not be compatible.

Conclusion of MC33368P

The MC33368P is a reliable and efficient PFC controller IC designed for critical conduction mode applications. Its wide supply voltage range, low startup current, and through-hole packaging make it a versatile choice for various applications. Despite being obsolete, its robust design and performance benefits ensure that it remains a viable option for specific use cases, particularly in legacy systems and applications where CRM control is essential. Compliance with environmental regulations and ease of handling due to its MSL rating further enhance its appeal. For engineers and designers looking for a proven PFC solution, the MC33368P offers a reliable and efficient option.

MC33368P Documents

Download datasheets and manufacturer documentation for MC33368P