ADP8860

Data Sheet Charge Pump, 7-Channel Smart LED Driver with I2C Interface ADP8860 FEATURES Charge pump with automatic gain selection of 1×, 1.5×, and 2× for maximum efficiency Up to two built-in comparator inputs with programmable modes for ambient light sensing Outdoor, office, and dark modes for maximum backlight power savings 7 independent and programmable LED drivers 6 drivers capable of 30 mA (typical) 1 driver capable of 60 mA (typical) Programmable maximum current limit (128 levels) Standby mode for <1 μA current consumption 16 programmable fade in and fade out times 0.1 sec to 5.5 sec Choose from linear, square, or cubic rates Fading override I2C-compatible interface for all programming Dedicated reset pin and built-in power-on reset (POR) Short-circuit, overvoltage, and overtemperature protection Internal soft start to limit inrush currents Input-to-output isolation during faults or shutdown Operation down to VIN = 2.5 V with undervoltage lockout (UVLO) at VIN = 2.0 V Small wafer level chip scale package (WLCSP) or lead frame chip scale package (LFCSP) APPLICATIONS Mobile display backlighting Mobile phone keypad backlighting Dual RGB backlighting LED indication General backlighting of small format displays GENERAL DESCRIPTION The ADP8860 combines a programmable backlight LED charge pump driver with automatic phototransistor control. This combination allows for significant power savings because it changes the current intensity in office and dark ambient light conditions...