ADM8840 panel equivalent, charge pump regulator & com driver for color tft panel.
Programmable COM Driver to prevent Screen-Burn 3 Voltages (5.0V,15.0V,-15.0V) from one 3V Supply Power Efficiency optimised for use with TFT in mobile phones Low Quiescen.
Handheld Instruments TFT LCD Panels Cellular Phones
VOLTAGE INVERTER
C4+
C4 0.22 F
C9
0.22 F
C4-
ADM8840
TRIPLE.
ADD_OUT
The ADM8840 combines a charge pump regulator and a Common Line (COM) driver in a single chip solution for use in TFT LCD’s. The device provides an LCD controller and grayscale DAC supply voltage of 5.0V (±2%), 2 gate drive voltages of +15V .
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