LED Driver ICs Set Efficiency and Size Benchmarks

The ARC3C family of LED driver ICs target the ultra-high-definition (UHD) LCD displays market for notebook computers, Ultrabooks, and 2-in-1 convertibles.

he device boast dramatic improvements in power conversion efficiency, while achieving the lowest "z" height profile and smallest footprint in the industry. Delivering up to 10W of output power, the ARC3C products can save up to 1W of power in the LED boost circuit, improving battery runtime for a notebook computer by typically one hour. Other features include up to eight integrated programmable current sinks, all necessary MOSFETs, control and driver circuitry, and dimming options within a tiny 4x4 mm QFN package. The product family is designed specifically for 2-cell or 3-cell input voltages, with product variants suited up to 8-string LED arrays sinking current up to more than 40 mA per string. They also include extensive fault protection including over-current, output over-voltage and under-voltage protection, LED open and uniquely short circuit protection. An I²C 6.0-compatible serial interface is included.