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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

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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 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