STMicroelectronics L4984D Power Factor Corrector

The L4984D from STMicroelectronics is a highly integrated and advanced Power Factor Corrector (PFC) designed for use in a variety of applications that require high power factor and low THD (Total Harmonic Distortion). This IC is an essential component for systems that need to comply with international power regulations, ensuring energy efficiency and reduced power consumption.

The L4984D operates in transition mode, which allows for an optimum compromise between the efficiency and the size of the power supply, making it an ideal choice for compact designs. It is capable of controlling boost PFC pre-regulators and is designed to work over a wide-range of input voltages, accommodating for fluctuations in the power supply and ensuring a stable output.

One of the key features of the L4984D is its low startup current and low quiescent current, which enhance the overall efficiency of the application. Additionally, the device is equipped with numerous protection features such as overvoltage protection (OVP), overcurrent protection (OCP), and a disable function that can be triggered via a brownout detection or by an external signal.

With its built-in error amplifier and voltage reference, precise output voltage regulation is achieved. The L4984D also supports a wide range of switching frequencies, providing design flexibility. Its soft-start feature prevents current surges during startup, contributing to the longevity of the product and the safety of the overall system.

STMicroelectronics has designed the L4984D with a focus on ease of use. The device is available in a compact SO-16 package, making it suitable for space-constrained applications. Whether it's for home appliances, industrial systems, or consumer electronics, the L4984D is a reliable and efficient solution for power factor correction.

For engineers and designers looking for a robust PFC solution, the L4984D offers a blend of performance, efficiency, and protection features that make it a leading choice in the market.