SKYA21004 Description
The SKYA21004 consists of a power management block supplying LCD bias rails and a three-channel backlight driver. The LCD bias power management block of the SKYA21004 includes a boost converter that supplies main analog voltage (AVDD) of the panel, two charge-pump controllers supplying a gate-on voltage (VGH), and a gate-off voltage (VGL) to the LCD panel. The boost converter uses a 1.3-MHz fixed frequency to...
SKYA21004 Key Features
- 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
SKYA21004 Applications
- I2C interface Direct PWM dimming (10-bit resolution of PWM duty control) Analog PWM dimming (9-bit resolution of PWM duty control) Programmable maximum LE