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."
About MagnaChip Semiconductor
Headquartered in South Korea, MagnaChip Semiconductor is a Korea-based designer and manufacturer of analog and mixed-signal semiconductor products for high volume consumer applications. MagnaChip Semiconductor believes it has one of the broadest and deepest range of analog and mixed-signal semiconductor platforms in the industry, supported by its 30-year operating history, a large portfolio of registered and pending patents and extensive engineering and manufacturing process expertise. For more information, please visit www.magnachip.com.
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