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6-Ch Gamma Buffer
48-Pin 6x6 mm QFN Package
Integrated isolation FET
I2C Programmable sequencing delays
(3 x 3 bits)
9-bit VCOM reference
2-bit VCOM gain
8.6 to 14.7V Input voltage range
Boost converter VDD
Integrated input-to-output isolation switch
Buck converter HVDD
Buck converter VCC
Buck converter VCORE
Buck converter VEPI
Positive charge pump controller VGH
Temperature compensation for VGH
Negative charge pump controller VGL
Selectable dynamic gain feature
Reset signal with programmable delay time
Thermal Shutdown
1
st
TI device integrating the LCD bias and the gamma buffer,
combining TPS65168 & BUF08630, saving the 5x5mm² package of
BUF08630 + routing
Very small device that use 3 high frequency converters which can be
used with chip inductors (cheaper & smaller than wire wounded
inductors)
Better control of startup of the boost and short circuit & reduces the
BOM
I2C Programmability allows for :
Easy PCB layout (no resistor divider to set output voltages)
Flexible solution (1 BOM for all panels)
Can be used in conjunction with the TPS65198 level shifter
LCD TVs
LCD monitor
TPS65178 ─ Fully programmable LCD Bias IC for TV with
6-Ch Gamma Buffers, Vcom Reference and Dynamic Gain
Features Benefits
Applications
