The TPS65642 is a compact LCD bias solution primarily intended for use in Notebook and
Tablet PCs. The device comprises two boost converters to supply the LCD panels source driver and
gate driver/level shifter; two buck converters and an LDO linear regulator to supply the systems
logic voltages; a programmable VCOM generator with two high-speed
amplifiers; 14-channel gamma voltage correction; and a gate voltage shaping function.
Similar but not functionally equivalent to the compared device:
TPS65640ACTIVELCD Bias with Digital VCOM Buffer for Notebook PCs and Tablet PCsThis product has no integrated gamma buffer, and has two OpAmps.
TPS65642AACTIVELCD Bias with Integrated Gamma Reference for Notebook PCs, Tablet PCs and MoniThis product has an integrated AVDD range from 7V to 10.1V (instead of 6.0 to 9.1V) and has Vio and Vcore in sync.
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