ADM8845 Datasheet - Analog Devices

ADM8845 Charge Pump Driver for LCD White LED Backlights

The ADM8845 provides the power required to drive up to six LEDs, using charge pump technology. The LEDs are used for backlighting a color LCD display, with up to four LEDs in the main display and up to two LEDs in the sub display, with regulated constant current for uniform brightness intensity. Two.

ADM8845 Features

* ADM8845 drives 6 LEDs from a 2.6 V to 5.5 V (li-ion) input supply 1x/1.5x/2x Fractional Charge Pump to maximise power efficiency 1% Max LED Current Matching Up to 88% Power Efficiency over Li-ion Range Powers Main and Sub Display LEDs with individual shutdown Package footprint only 9mm2 (3mm x 3mm)

ADM8845_AnalogDevices.pdf