ADM8845Charge Pump Driver for LCD White LED Backlights ADM8845FEATURESDrives 6 LEDs from 2.6 V to 5.5 V (Li-Ion) input supply 1×/1.5×/2× fractional charge pump to maximize 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 9 mm2 (3 mm × 3 mm) Package height only 0.9 mm Low power shutdown mode Shutdown function Soft-start limiting in-rush currentGENERAL DESCRIPTIONThe ADM8845 uses charge pump technology to provide the power required to drive up to six LEDs. The LEDs are used for backlighting a color LCD display, having regulated constant current for uniform brightness intensity. The main display can have up to four LEDs, and the sub display can have one or two LEDs. The digi……
猜您喜欢
评论