As part of its market expansion and diversification strategy, Advanced Analogic Technologies made its official move into the LED backlit LCD television market with the first chip set familiies in a series of innovative power management semiconductor systems designed to significantly enhance energy efficiency and user-experience for LED backlit LCD televisions.
The intelligent control of LED current sinks in direct/matrix backlight applications can provide precise brightness of individual segments based on image content and can give the consumer truer blacks and improved contrast for a significantly better, more natural viewing experience. Dynamic LED backlighting also makes it possible to meet the increasingly stringent energy consumption specifications for large panel TVs such as the state of California is considering.
As its initial entry point into the LED television market, AnalogicTech announced 7 new products: • LED Driver Chipset with Integrated Boost converter for Direct/Matrix Backlighting • AAT2400 (8ch Master) & AAT2401 Unlatched (8ch Slave) Chipset • AAT2402M (8ch Master) & AAT2402S Latched (8ch Slave) Chipset • Dedicated LED Driver for Direct/Matrix Backlighting • AAT2403 (16ch) Latched LED Driver • Dedicated LED Driver for Edge Backlighting • AAT2405 PWM with phase shift (6ch) LED Driver • AHK2417E Latched (8ch) LED Driver • AHK2418E Latched (16ch) LED Driver • DC/DC Boost Controller • AAT2404 High Voltage Boost Controller
These devices utilize AnalogicTech’s patent pending Multiple Chip Voltage Feedback technique that ensures the proper LED supply voltage is simultaneously regulated across up to 16 chipsets (or 256 channels) allowing precise control of up to 2560 LEDs for direct or dynamic backlighting solutions or up to 16 channels for Edge.
