Compact TFT LCD Bias IC For Monitor With VCOM Buffer, Voltage Regulator For Gamma Buffer And Reset Function

The TPS65148 offers a very compact power supply solution designed to supply the LCD bias voltages required by TFT (Thin Film Transistor) LCD panels running from a typical 5 V supply rail. The device integrates a high power Step-up converter for V S (Source Driver voltage), a very accurate voltage rail using an integrated LDO to supply the Gamma Buffer (V REG_O ) and a Vcom Buffer driving the LCD Backplane In addition to that, a Gate voltage shaping block is integrated. The V GH signal (Gate Driver High voltage) supplied by an external positive Charge Pump is modulated into V GHM with high flexibility by using a Logic input VFLK and an external discharge resistor connected to RE pin. Also, an external negative Charge Pump CAN be set using the boost converter of the TPS65148 to generate V GL (Gate Driver Low voltage). The integrated reset function together with the LCD discharge function available in the TPS65148 provide the signals enabling the discharge of the LCD TFT pixels when powering-off. The device includes safety features like overcurrent protection (OCP) and short-circuit protection (SCP) achieved by an external input-to-output isolation Switch as well as overvoltage protection (OVP) and thermal shutdown. By Texas Instruments
Part Manufacturer Description Datasheet Samples
TPS65148RHBR Texas Instruments 4-CH LCD Bias w/ GPM, VCOM, Reset, LCD Discharge, HVS, Ext. Isolation Switch & LDO for Gamma 32-VQFN -40 to 85
TPS65148RHBT Texas Instruments 4-CH LCD Bias w/ GPM, VCOM, Reset, LCD Discharge, HVS, Ext. Isolation Switch & LDO for Gamma 32-VQFN -40 to 85
TPS65148 's PackagesTPS65148 's pdf datasheet
TPS65148RHBR QFN
TPS65148RHBT QFN
TPS65148RHB QFN




TPS65148 Pinout, Pinouts
TPS65148 pinout,Pin out
This is one package pinout of TPS65148,If you need more pinouts please download TPS65148's pdf datasheet.

TPS65148 Application circuits
TPS65148 circuits
This is one application circuit of TPS65148,If you need more circuits,please download TPS65148's pdf datasheet.


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