SKYA21004

DATA SHEET SKYA21004: Three-Channel LCD Bias Power Management IC with Three-Channel High-Efficiency White LED Driver Applications  Automotive displays  Digital photo frames  Digital still cameras  Tablets  Notebooks Features LCD bias power (AVDD boost)  Input supply range: 2.8 V to 5.5 V  1.3 MHz fixed frequency boost regulator  Adjustable voltage up to 14.5 V (±1% typical accuracy)  Short-circuit, over-voltage, and over-temperature protection Positive/negative gate drive (VGH/VGL)  Up to 13.2 V input supply (VDD)  Adjustable voltage up to 30 V @ 20 mA (VGH)  Adjustable voltage down to 30 V @ 20 mA (VGL) LED driver  Input supply range: 2.8 V to 5.5 V  Adjustable operating frequency: 600 kHz to 2 MHz  Dimming control options:  8-bit resolution on LED current control – I2C interface  Direct PWM dimming (10-bit resolution of PWM duty control)  Analog PWM dimming (9-bit resolution of PWM duty control)  Programmable maximum LED current (30 mA to 120 mA) per channel  Up to 28 V, 120 mA per channel  Accuracy matching: ±2.5% @ 60 mA  Fade in/out feature for current control  PWM input range: 100 Hz to 25 kHz  LED open/short detection, boost over-voltage/current protection, over-temperature protection  AEC-Q100 qualified  QFN (36-pin, 7 mm  4 mm, 0.5 mm pitch) package (MSL3, 260 ºC per JEDEC J-STD-020) Description The SKYA21004 consists of a power management block supplying LCD bias rails and a three-channel backlight driver. The LCD bias power management ...