Skyworks Solutions, Inc.: Lighting Management IC: AAT2847: AAT2847IML-EE-T1

Power Electronics Products from CDI

Four-Channel WLED Backlight Driver with Dual Programmable LDOs TQFN34-20TR
Manufacturer: Skyworks Solutions, Inc.
Status: Standard
Data Sheet: AAT2847IML-EE-T1 Data Sheet
RoHS Compliance: Skyworks Solutions, Inc., AAT2847IML-EE-T1, Lighting Management IC, Four-Channel WLED Backlight Driver with Dual Programmable LDOs TQFN34-20TR (Rohs Compliant), Component Distributors Inc. (CDI) Yes
# Backlight LEDs:
# Backlight Channels:
Backling Iout (max) per Channel:
20 mA
# Flash LED Channels:
# LDO Outputs:
Dropout Voltage:
0.15 V
LDO Iout:
200 mA
Vin Min:
2.7 V
Vin Max:
5.5 V
Also Available
Part FunctionPart NumberDescription
Evaluation Board AAT2847IML-EE-DB1 Skyworks Solutions, Inc. Demo board for AAT2847IML-EE-T1
The AAT2847 is a highly integrated power solution for single cell Li-Ion/Polymer based liquid crystal display (LCD) applications. It includes a four channel light emitting diode (LED) backlight driver and two integrated 200mA low dropout voltage regulators (LDOs) as additional power supplies for display and camera related chipsets. The backlight driver in the AAT2847 is a low noise tri-mode DC/DC charge pump converter. Each of the four channels of the backlight driver is capable of delivering up to 20mA of bias currents for white LEDs. The white LED (WLED) backlight bias current matching is 1% which helps provide uniform display brightness. AnalogicTech’s AS²Cwire™ (Advanced Simple Serial Control™) serial digital interface is used to enable, disable, and set the current for each backlight LED channel. Each LED channel has sixteen available current level settings in three separate current scales, plus four available current level settings on a low level current scale. Each LED channel is equipped with built-in short circuit protection and auto disable functionality. A low shutdown current feature disconnects the load from the input and reduces quiescent current to less than 1µA. The AAT2847 is available in the thermally enhanced 20-pin 3x4x0.75mm TQFN package.
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Package Format
DescriptionUnits Per FormatAvailable
(T/R) 3000 0