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L4986A

L4986A Description

The L4986A is a Continuous Conduction Mode (CCM) Power Factor Correction (PFC) controller designed for high voltage applications. Manufactured by STMicroelectronics, this device is engineered to provide efficient power management while ensuring compliance with industry standards. The L4986A operates in Continuous Conduction Mode (CCM) and is suitable for a wide range of power supply applications. It features a switching frequency of 65kHz, which allows for high efficiency and reduced component size. The device is designed to work with a supply voltage range of 10V to 24.5V, making it versatile for various power supply designs. The L4986A is packaged in a tube, ensuring robustness and ease of handling during manufacturing processes. It also meets the REACH Unaffected status and is ROHS3 compliant, adhering to environmental and safety regulations.

L4986A Features

• Continuous Conduction Mode (CCM): The L4986A operates in CCM, which ensures high efficiency and stable performance across a wide range of load conditions. This mode of operation is ideal for applications requiring consistent power delivery.
• High Switching Frequency: With a switching frequency of 65kHz, the L4986A allows for the use of smaller inductors and capacitors, reducing the overall size and weight of the power supply. This is particularly beneficial in compact and high-density designs.
• Wide Supply Voltage Range: The device supports a supply voltage range of 10V to 24.5V, making it suitable for a variety of power supply applications. This wide range ensures compatibility with different input sources and enhances the flexibility of the design.
• Low Startup Current: The L4986A features a low startup current of 400 µA, which minimizes power consumption during the initial startup phase. This is crucial for applications where energy efficiency is a priority.
• Surface Mount Technology: The surface mount mounting type allows for easy integration into modern PCB designs. This ensures high reliability and ease of manufacturing.
• Compliance and Safety: The L4986A is REACH Unaffected and ROHS3 compliant, ensuring it meets environmental and safety standards. This compliance is essential for manufacturers aiming to adhere to global regulations.
• Moisture Sensitivity Level (MSL): With an MSL of 3 (168 Hours), the L4986A is suitable for manufacturing processes that require protection against moisture, ensuring long-term reliability and performance.

L4986A Applications

The L4986A is ideal for a variety of applications where high efficiency and stable power delivery are required. Some specific use cases include:

• High Voltage Power Supplies: The L4986A is well-suited for high voltage power supplies used in industrial equipment, telecommunications, and medical devices. Its ability to operate in CCM ensures stable and efficient power delivery.
• Compact Designs: The high switching frequency allows for the use of smaller passive components, making the L4986A ideal for compact and high-density power supply designs. This is particularly beneficial in applications with space constraints.
• Energy-Efficient Systems: The low startup current and wide supply voltage range make the L4986A suitable for energy-efficient systems. It minimizes power consumption during startup and ensures consistent performance across different input voltages.
• Robust Manufacturing: The surface mount technology and moisture sensitivity level of 3 (168 Hours) ensure the L4986A is suitable for robust manufacturing processes. This is crucial for applications requiring high reliability and long-term performance.

Conclusion of L4986A

The L4986A from STMicroelectronics is a versatile and efficient CCM PFC controller designed for high voltage applications. Its high switching frequency, wide supply voltage range, and low startup current make it an ideal choice for a variety of power supply designs. The device's compliance with industry standards and safety regulations ensures it meets the requirements of modern manufacturing processes. Whether used in high voltage power supplies, compact designs, or energy-efficient systems, the L4986A offers reliable performance and significant advantages over similar models.