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( File format: PDF, 381K )
Four White LED Backlight Driver
Analog Devices Inc.

Description
The ADM8843 uses charge pump technology to provide the power to drive up to four LEDs. The LEDs are used for back-lighting a color LCD display that has regulated constant current for uniform...
Features
Drives 4 LEDs from a 2.6 V to 5.5 V (Li-Ion) input supply 1×/1.5×/2× fractional charge pump to maximize power efficiency 0.3% typical LED current matching Up to 88% power efficiency over Li-Ion range Powers main and sub display LEDs with individual shutdown Package footprint only 9 mm2 (3 mm × 3 mm) Package height only 0.55 mm Low power shutdown mode Shutdown function Soft start limiting in-rush current

Related Datasheets
Part Number Description Category
? ?ADD8754 LCD Panel Power, VCOM,and Gate Modulation Passives - Filters, Oscillators and Resonators
? ?ADM8832 Charge Pump Regulator for Color TFT Panel ICs, Interface
? ?ADM8839 Charge Pump Regulator for Color TFT Panel ICs, Interface
? ?ADM8843 Four White LED Backlight Driver ICs, Interface
? ?ADM8845 Charge Pump Driver for 6 White LED LCD Backlights ICs, Interface
? ?ADP1653 Compact, High Efficiency, High Power, Flash/Torch LED Driver with Dual Interface ICs, Interface



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