MAX8930

19-4921; Rev 0; 3/10 www.DataSheet4U.com TION KIT EVALUA BLE IL AVA A WLED Charge Pump, RGB, OLED Boost, LDOs with ALC and CAI General Description The MAX8930 integrates a charge pump for white LED display backlighting with ambient light control (ALC) feature. The high-efficiency, adaptive-mode 1x/-0.5x charge pump drives up to 11 LEDs (8 WLEDs + RGB LED) with constant current for uniform brightness. The LED current is adjustable from 0.1mA to 25.6mA in 256 linear steps through I2C. High accuracy and LED-to-LED current matching are maintained throughout the adjustment range. The MAX8930 includes soft-start, thermal shutdown, open-circuit, and short-circuit protection. Three 200mA LDOs are provided with programmable output voltages to provide power to external circuitry. These three LDOs can also be configured for a GPO function through the I2C. A step-up converter is also available on the MAX8930 for biasing a PMOLED subpanel. The MAX8930 is available in the 49-bump, 3.17mm x 3.17mm WLP package. S White LED Charge Pump S Adaptive 1x or -0.5x Negative Modes S 11 Low-Dropout LED Current Sinks with 25.6mA Features MAX8930 Simplified Application Circuit INPUT INPUT 2.7V TO 5.5V PV1 PV2 PV3 PV5 INPUT 1.7V TO 5.5V PV4 BIAS INPUT LIGHT SENSOR SENSE WLED1 WLED2 WLED3 WLED4 WLED5 WLED6 WLED7 WLED8 to 0.1mA in 256 Dimming Steps S Ramp-Up/Down Control for Main White LED S Ramp-Up/Down Control for RGB LED S Individual Brightness Control for Each White, RGB LED S Low 240µA (...