Introducing the L6564H - A Robust PFC Controller from STMicroelectronics

The L6564H is a highly integrated and feature-rich Power Factor Correction (PFC) controller designed by STMicroelectronics, a leader in semiconductor solutions. This advanced controller is specifically engineered to enhance the performance of boost pre-regulators operating in Transition Mode (TM). It is an ideal choice for applications requiring high power factor and efficiency, such as energy-saving light systems, high-end power supplies, and any other AC-DC converter that demands precise PFC.

At the heart of the L6564H is STMicroelectronics' proprietary MultiMode control, which allows the device to seamlessly transition between Transition Mode and DCM (Discontinuous Conduction Mode) or CCM (Continuous Conduction Mode) depending on the load conditions. This ensures optimized efficiency across a wide range of loads, making the controller extremely versatile and energy-efficient.

The L6564H is equipped with a range of features that simplify design and enhance system reliability. It includes a totem-pole PFC gate driver capable of driving a power MOSFET, an accurate adjustable output overvoltage protection, and a disable function that lowers the device consumption to less than 50 mW under no-load conditions. The controller also offers protections against feedback loop failure, sensed voltage disconnection, and undervoltage lockout with hysteresis.

One of the key benefits of the L6564H is its built-in brownout protection, which safeguards the system against low mains voltage conditions. Additionally, the device's very low operating quiescent current, along with the option for the user to set the maximum PFC output voltage, ensures that the controller operates efficiently and safely under all conditions.

The L6564H comes in a compact SO-16N package, making it suitable for space-constrained applications. Its robust design, combined with STMicroelectronics' commitment to quality, ensures long-term reliability and performance. Whether you're designing a new power system or upgrading an existing one, the L6564H provides a sophisticated solution for your PFC requirements.

Choose the L6564H for a high-performance, reliable, and efficient PFC controller that is designed to meet the stringent demands of modern power applications.