MC33262D Description
The MC33262D is a Power Factor Correction (PFC) controller designed for critical conduction mode (CRM) applications. Manufactured by onsemi, this IC is part of the Power Management Integrated Circuits (PMIC) category and is housed in an 8SOIC package. The MC33262D operates within a supply voltage range of 12V to 28V, making it suitable for a wide range of power supply applications. It features a low startup current of 250 µA, which ensures efficient operation during the initial power-up phase. The device is mounted using surface mount technology, providing a compact and reliable solution for modern electronic designs. Despite being marked as obsolete, the MC33262D remains a viable option for legacy systems and specific applications where its unique features are advantageous.
MC33262D Features
- Critical Conduction Mode (CRM): The MC33262D operates in CRM, which is an efficient mode of operation for PFC controllers. This mode ensures that the inductor current is always continuous, reducing electromagnetic interference (EMI) and improving overall system efficiency.
- Wide Supply Voltage Range: With a supply voltage range of 12V to 28V, the MC33262D is versatile and can be used in various power supply designs, including those with fluctuating input voltages.
- Low Startup Current: The device has a low startup current of 250 µA, which minimizes power consumption during the initial power-up phase. This feature is particularly beneficial in applications where energy efficiency is critical.
- Surface Mount Technology (SMT): The MC33262D is designed for surface mount applications, offering a compact and reliable solution that is well-suited for modern electronic designs.
- Moisture Sensitivity Level (MSL) 1: The device has an MSL rating of 1, indicating that it is not moisture-sensitive and can be stored and handled without special precautions.
- REACH Compliance: The MC33262D is REACH unaffected, ensuring compliance with environmental regulations and making it suitable for use in a wide range of applications.
- Packaged in Tubes: The device is packaged in tubes, which facilitates easy handling and storage during manufacturing processes.
MC3326D Applications
The MC33262D is ideal for applications requiring efficient power factor correction in critical conduction mode. Some specific use cases include:
- Power Supplies: The MC33262D is well-suited for power supplies in various electronic devices, including computers, servers, and telecommunications equipment. Its wide supply voltage range and low startup current make it an efficient choice for these applications.
- Industrial Equipment: In industrial settings, the MC33262D can be used in power supplies for machinery and equipment that require high efficiency and reliability.
- Telecommunications Infrastructure: The device is also suitable for power supplies in telecommunications infrastructure, such as base stations and network equipment, where power factor correction is essential for maintaining power quality.
Conclusion of MC33262D
The MC33262D is a robust and efficient PFC controller designed for critical conduction mode applications. Despite its obsolete status, it remains a valuable component for specific applications where its unique features, such as low startup current and wide supply voltage range, provide significant advantages. The device's compliance with environmental regulations and its surface mount technology make it a reliable choice for modern electronic designs. For applications requiring efficient power factor correction and high reliability, the MC33262D is an excellent option.