Date: 06/01/2009

LED controller IC with low power dissipation for slim LCD TVs

Austriamicrosystems introduced AS3693B, a 16 channel LED controller/driver IC for the latest generation of LCD TV backlighting. This AS3693B LED controller IC helps to build highly flat LCD TVs with highest possible contrast ratios, resulting in best picture quality.
The concept of controlling external FETs and the power saving technology, which actively regulates the LED power supply both, minimize power dissipation in the system. This makes very flat panel designs possible and enables the creation of very energy efficient TV solutions.
The AS3693B LED controller IC is especially designed to allow perfect synchronization of the LCD picture and the LED backlight unit in order to realize so called "block dimming control" for outstanding picture quality.

The IC can manage 16 LED cannels, each with an current accuracy of 0,5%. In addition, new features like "reverse PWM" create entirely new possibilities to control different LED segments of the backlighting unit.

At CES 2009 in Las Vegas, Jan 8th to Jan 11th, austriamicrosystems will demonstrate its latest LCD TV LED backlight implementation in an off-exhibition suite.

Packaging: available in a ePTQFP64 10x10 mm package.

For more information visit website: www.austriamicrosystems.com