TPS65167

Compact LCD Bias Supply for TFT-LCD TV Panels

TPS65167

Compact LCD Bias Supply for TFT-LCD TV Panels

TPS65167

Compact LCD Bias Supply for TFT-LCD TV Panels;

TPS65167A

具有完全集成的正电荷泵、LDO 控制器、HVS (VDD/VGH) 和温度传感器的 4 通道 LCD 偏置; • 6 V to 14 V Input Voltage Range\n• Vs Output Voltage Range up to 19 V \n• Boost Converter With 3.5-A Switch Current\n• Boost Converter Overvoltage Protection\n• 2.5-A Step-Down Converter With 3.3-V Fixed or Adjustable Output\n• 750 kHz Fixed Switching Frequency\n• 150 mA Negative Charge Pump Driver for VGL \n• 50 mA Positive Charge Pump for VGH\n• LDO Controller for Logic Supply\n• Gate Voltage Shaping for VGH \n• Temperature Sensor Output\n• TPS65167 - High Voltage Stress Test Vs and VGH\n• TPS65167A - High Voltage Stress Test Vs only\n• Adjustable Sequencing\n• Gate Drive Signal for Isolation Switch\n• Short-Circuit Protection\n• Internal Soft-start \n• Thermal Shutdown\n• Available in 6 × 6 mm 40 Pin QFN Package \n• APPLICATIONS \n• LCD TV Panel\n• LCD Monitor;

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.

TPS65167_07

Compact LCD Bias Supply for TFT-LCD TV Panels

TPS65167A

Compact LCD Bias Supply for TFT-LCD TV Panels

TPS65167ARHAR

Compact LCD Bias Supply for TFT-LCD TV Panels

TPS65167ARHARG4

Compact LCD Bias Supply for TFT-LCD TV Panels

TPS65167RHAR

Compact LCD Bias Supply for TFT-LCD TV Panels

TPS65167RHAR

Compact LCD Bias Supply for TFT-LCD TV Panels