The TPS65168 provides a simple and economic power supply solution for a wide variety of LCD bias applications. The device provides all supply rails needed by a TFT-LCD panel. VI/O, VCORE and RST for the T-Con. VDD and HVDD for the Source Driver and the Gamma Buffer. VGH and VGL for the Gate Driver or the Level Shifter. The VGH voltage can be compensated for low and high adjustable temperatures, if GIP technology is used. The transition from one programmed VGH value to another is made using an external thermistor connected to the IC. All output rails and delay times are programmable by a Two-Wire interface: a single BOM can cover several panel types and sizes whose desired output levels can be programmed in production and stored in a non-volatile memory embedded into the TPS65168. Both VCORE and HVDD are generated by synchronous buck converters which support chip inductors for an optimized solution size.
Similar but not functionally equivalent to the compared device:
TPS65175ACTIVEFully Programmable LCD Bias IC for GIP TV with Integrated 12-Ch Level Shifters and 6-Ch Gamma BufferThis product adds a 6ch gamma buffer and has a 12ch level shifter.
TPS65175BACTIVEFully Programmable LCD Bias IC for GIP TV with 12-Ch LvL Shifters, Gamma BuffersThis product has a 6ch gamma buffer, 12ch level shifter and a VCOM_DAC output for external operational amplifier reference.
TPS65178ACTIVEFully Programmable LCD Bias IC for TV with 6-Channel Gamma Buffer, Vcom Reference and Dynamic GainThis product adds a 6ch gamma buffer.
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