DC-DC Converter powers and backlights 5-10 in. LCD displays.

Press Release Summary:



Housed in 4 x 4 mm TQFN package, Model AAT2822 combines triple-output DC/DC converter, 28 V WLED backlight driver, and VCOM buffer, providing regulated voltages required by active-matrix TFT LCDs. Backlight driver supports serial and parallel configured LED strings and delivers up to 260 mA of continuous current. Equipped with built-in supply sequencing and fault detection to prevent damage to LCD, converter is suited for automotive infotainment systems, digital photo frames, and PNDs.



Original Press Release:



AAT 2822 | TFT-LCD DC-DC Converter with WLED Driver and VCOM Buffer



Panel Power

The AAT2822-AAT2825 family of integrated panel power solutions provides the regulated voltages required by an active-matrix thin-film transistor (TFT) liquid-crystal display (LCD).

The AAT2822 includes a triple-output DC/DC converter, a LED backlight driver,
and a VCOM buffer in a 4 mm x 4mm TQFN package. This family is ideally suited for powering and backlighting 5" to 10" LCD display products.

Features

o Efficient: The AAT2822's boost converter architecture improves efficiency to charge pump only implementation.

o Flexible: The 28V WLED backlight driver supports high voltage serial and parallel configured LED strings.

o Powerful: The backlight driver can deliver up to 260mA of continuous current.

o Safe & Easy: The built-in supply sequencing and fault detection prevents damage to LCD.

o Solution footprint smaller than 30mm x 20mm due to system integration and support for small inductors and capacitors.

Applications

o Automotive Infotainement Systems

o Digital Photo Frames

o Netbook / MID

o Portable Navigation Devices (PND)

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