TPS65167A Series

4-CH LCD Bias w/ Fully Int. Positive Charge Pump, LDO Controller, HVS (VDD / VGH) & Temp. Sensor

Catalog

4-CH LCD Bias w/ Fully Int. Positive Charge Pump, LDO Controller, HVS (VDD / VGH) & Temp. Sensor

Part	Operating Temperature [Max]	Operating Temperature [Min]	Applications	Voltage - Supply [Min]	Voltage - Supply [Max]	Mounting Type	Package / Case	Supplier Device Package	Frequency - Switching	Voltage - Input [Max]	Voltage - Input [Min]	Supplied Contents	Voltage - Output	Main Purpose	Board Type	Power - Output	Regulator Topology	Outputs and Type	Outputs and Type	Current - Output	Utilized IC / Part
Texas Instruments TPS65167RHAT	85 °C	-40 °C	LCD TV/Monitor	6 V	14 V	Surface Mount	40-VFQFN Exposed Pad	40-VQFN (6x6)
Texas Instruments TPS65167EVM-277									750 kHz	14 V	8 V	Board(s)	-5 V 1.8 V 3.3 V 15 VDC 23.8 V	Special Purpose DC/DC LCD Supply	Fully Populated	25.5 W	Buck-Boost	Non-Isolated	5	1 A 2.5 A 50 mA 500 mA	TPS65167
Texas Instruments TPS65167ARHAR	85 °C	-40 °C	LCD TV/Monitor	6 V	14 V	Surface Mount	40-VFQFN Exposed Pad	40-VQFN (6x6)
Texas Instruments TPS65167RHAR	85 °C	-40 °C	LCD TV/Monitor	6 V	14 V	Surface Mount	40-VFQFN Exposed Pad	40-VQFN (6x6)
Texas Instruments TPS65167RHARG4	85 °C	-40 °C	LCD TV/Monitor	6 V	14 V	Surface Mount	40-VFQFN Exposed Pad	40-VQFN (6x6)

Catalog

4-CH LCD Bias w/ Fully Int. Positive Charge Pump, LDO Controller, HVS (VDD / VGH) & Temp. Sensor

Key Features

• 6 V to 14 V Input Voltage RangeVs Output Voltage Range up to 19 VBoost Converter With 3.5-A Switch CurrentBoost Converter Overvoltage Protection2.5-A Step-Down Converter With 3.3-V Fixed or Adjustable Output750 kHz Fixed Switching Frequency150 mA Negative Charge Pump Driver for VGL50 mA Positive Charge Pump for VGHLDO Controller for Logic SupplyGate Voltage Shaping for VGHTemperature Sensor OutputTPS65167 - High Voltage Stress Test Vsand VGHTPS65167A - High Voltage Stress Test Vs onlyAdjustable SequencingGate Drive Signal for Isolation SwitchShort-Circuit ProtectionInternal Soft-startThermal ShutdownAvailable in 6 × 6 mm 40 Pin QFN PackageAPPLICATIONSLCD TV PanelLCD Monitor6 V to 14 V Input Voltage RangeVs Output Voltage Range up to 19 VBoost Converter With 3.5-A Switch CurrentBoost Converter Overvoltage Protection2.5-A Step-Down Converter With 3.3-V Fixed or Adjustable Output750 kHz Fixed Switching Frequency150 mA Negative Charge Pump Driver for VGL50 mA Positive Charge Pump for VGHLDO Controller for Logic SupplyGate Voltage Shaping for VGHTemperature Sensor OutputTPS65167 - High Voltage Stress Test Vsand VGHTPS65167A - High Voltage Stress Test Vs onlyAdjustable SequencingGate Drive Signal for Isolation SwitchShort-Circuit ProtectionInternal Soft-startThermal ShutdownAvailable in 6 × 6 mm 40 Pin QFN PackageAPPLICATIONSLCD TV PanelLCD Monitor

Description

The TPS65167 offers a compact power supply solution to provide all voltages required by a LCD panel for large size monitor and TV panel applications running from a 12-V supply rail. The device generates all 3 voltage rails for the TFT LCD bias (Vs, VGL and VGH). In addition to that it includes a step-down converter and a LDO controller to provide two logic voltage rails. The device incorporates a high voltage switch that can be controlled by a logic signal from the external timing controller (TCON). This function allows gate voltage shaping for VGH. The device also features a high voltage stress test where the output voltage of VGH is set to typically 30 V and the output voltage of Vs is programmable to any higher voltage. The high voltage stress test is enabled by pulling the HVS pin high. The device consists of a boost converter to provide the source voltage Vs operating at a fixed switching frequency of 750 kHz. A fully integrated positive charge pump, switching automatically between doubler and tripler mode provides an adjustable regulated TFT gate on voltage VGH. A negative charge pump driver provides adjustable regulated output voltages VGL. To minimize external components the charge pumps for VGH and VGL operate at a fixed switching frequency of 1.5 MHz. The device includes safety features like overvoltage protection of the boost converter, short-circuit protection of VGH and VGL as well as thermal shutdown. The TPS65167 offers a compact power supply solution to provide all voltages required by a LCD panel for large size monitor and TV panel applications running from a 12-V supply rail. The device generates all 3 voltage rails for the TFT LCD bias (Vs, VGL and VGH). In addition to that it includes a step-down converter and a LDO controller to provide two logic voltage rails. The device incorporates a high voltage switch that can be controlled by a logic signal from the external timing controller (TCON). This function allows gate voltage shaping for VGH. The device also features a high voltage stress test where the output voltage of VGH is set to typically 30 V and the output voltage of Vs is programmable to any higher voltage. The high voltage stress test is enabled by pulling the HVS pin high. The device consists of a boost converter to provide the source voltage Vs operating at a fixed switching frequency of 750 kHz. A fully integrated positive charge pump, switching automatically between doubler and tripler mode provides an adjustable regulated TFT gate on voltage VGH. A negative charge pump driver provides adjustable regulated output voltages VGL. To minimize external components the charge pumps for VGH and VGL operate at a fixed switching frequency of 1.5 MHz. The device includes safety features like overvoltage protection of the boost converter, short-circuit protection of VGH and VGL as well as thermal shutdown.