MagnaChip Introduces New PFC Controller

MagnaChip Semiconductor Corporation announced the launch of a new power factor correction "PFC" controller (model: MAP8800) that has been optimized for use in LCD TV applications. The PFC controller plays an important role in increasing the power efficiency of LCD TVs by reducing power consumption up to 95% as it maintains constant current flows during the AC to DC conversion process.

The MAP8800 uses a boost method that functions in CRM (Critical Conduction Mode) that is beneficial not only for LCD TVs, but also for general power supply applications and other lighting devices.

The MAP8800 provides features such as a maximum frequency limiting function to prevent damage to the TV power supply and a DSP (Diode Short Protection) that protects the TV when a boost diode is shorted. Additionally, the MAP8800 provides overvoltage and overcurrent protection as well as feedback protection when the feedback loop is shorted.

"The MAP8800 is an optimum product designed to improve the energy efficiency and power supply stability of LCD TVs," said H.K. Kim, EVP and General Manager of MagnaChip's Display and Power Solutions Division. "By consolidating multiple protection circuits within one device, the MAP8800 enables LCD TV manufacturers to design products capable of using fewer parts that can withstand a higher power factor resulting in lower product costs and improved stability performance."