TPS65161

TPS65161 TPS65161A, TPS65161B www.ti.com SLVS617E – APRIL 2006 – REVISED MARCH 2013 BIAS POWER SUPPLY FOR TV AND MONITOR TFT LCD PANELS Check for Samples: TPS65161, TPS65161A, TPS65161B FEATURES 1 2 8-V to 14.7-V Input Voltage Range VS Output Voltage Range up to 19 V TPS65161 has a 2.8-A Switch Current Limit TPS65161A has a 3.7-A Switch Current Limit TPS65161B has a 3.7-A Switch Current Limit and 100-mA Charge Pump Output Current 1.5% Accurate 2.3-A Step-Down Converter 500-kHz/750-kHz Fixed Switching Frequency Negative Charge Pump Driver for VGL Positive Charge Pump Driver for VGH Adjustable Sequencing for VGL, VGH Gate Drive Signal to Drive External MOSFET Internal and Adjustable Soft Start Short-Circuit Protection Overvoltage Protection Thermal Shutdown Available in HTSSOP-28 Package APPLICATIONS TFT LCD Displays for Monitor and LCD TV DESCRIPTION The TPS65161 family offers a compact power supply solution to provide all four voltages required by thin-film transistor (TFT) LCD panels. With their high current capabilities, the devices are ideal for large screen monitor panels and LCD TV applications. TYPICAL APPLICATION VIN 12 V C1 2 * 22 μF C3 1 μF VGL −5 V/50 mA C16 1 μF D2 C6 0.47 μF C7 0.47 μF R3 620 kΩ D3 R4 150 kΩ C8 220 nF C9 22 nF L1 10 μH D1 SL22 VS 18 V/1.3 A TPS65161 8 12 SUP FREQ 20 VINB 21 22 VINB 16 AVIN 9 EN1 EN2 11 13 DRN FBN 24 6 REF 7 PGND 28 PGND 25 SS DLY1 4 SW SW 5 FB 1 OS 3 GND 23 G...