ADM8840
ADM8840 is Charge Pump Regulator & COM Driver for Color TFT Panel manufactured by Analog Devices.
PRELIMINARY TECHNICAL DATA a
Charge Pump Regulator & Driver for Color TFT Panel ADM8840 Preliminary Technical Data
FUNCTIONAL BLOCK DIAGRAM
-15V
Features
Programmable 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 Quiescent Current Low Shutdown Current (<5uA) Shutdown Function APPLICATIONS Handheld Instruments TFT LCD Panels Cellular Phones
VOLTAGE INVERTER
C4+
C4 0.22 F
C9
0.22 F
C4-
TRIPLE VOLTAGE TRIPLER DOUBLE
+15V
C2+
C2 0.22 F
C8
0.22 F
C2C3+
C3
0.22 F
C3-
OSCILLATOR
TIMING GENERATOR
5VIN +5V
5VOUT
SHDN
C7
2.2 F
SHUTDOWN...
