TPS65167A

www.ti.com TPS65167 TPS65167A SLVS760C – APRIL 2007 – REVISED MARCH 2008 Compact LCD Bias Supply for TFT-LCD TV Panels FEATURES 1 2 6 V to 14 V Input Voltage Range Vs Output Voltage Range up to 19 V Boost Converter With 3.5-A Switch Current Boost Converter Overvoltage Protection 2.5-A Step-Down Converter With 3.3-V Fixed or Adjustable Output 750 kHz Fixed Switching Frequency 150 mA Negative Charge Pump Driver for VGL 50 mA Positive Charge Pump for VGH LDO Controller for Logic Supply Gate Voltage Shaping for VGH Temperature Sensor Output TPS65167 - High Voltage Stress Test Vs and VGH TPS65167A - High Voltage Stress Test Vs only Adjustable Sequencing Gate Drive Signal for Isolation Switch Short-Circuit Protection Internal Soft-start Thermal Shutdown Available in 6 × 6 mm 40 Pin QFN Package TPS65167 12 V Boost Converter High-Voltage Stress Test Vs 15 V/1.7 A Positive Charge Pump Gate Voltage Shaping VGH 30 V/50 mA APPLICATIONS LCD TV Panel LCD 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 extern...