MAX8647
Overview
The MAX8647/MAX8648 drive up to six white LEDs or two sets of RGB LEDs with regulated constant current for display backlight and fun light applications. By utilizing an inverting charge pump and extremely lowdropout adaptive current regulators, these ICs achieve very high efficiency over the full 1-cell Li+ battery voltage range and even with large LED forward voltage mismatch.
- KIT ATION EVALU E L B AVAILA Features Six Adaptive Current Regulators Independent Voltage Supply for Each LED Individual LED Brightness Control (MAX8647) 24mA to 0.1mA Dimming Range I2C Interface (MAX8647) Serial-Pulse Dimming Logic (MAX8648) ±2% Accuracy, ±0.4% Matching (typ) Low 70µA Quiescent Current Low 1µA Shutdown Current Inrush Current Limit TA Derating Function Protects LEDs 16-Pin, 3mm x 3mm Thin QFN Package
