tailieunhanh - BIAS POWER SUPPLY FOR TV AND MONITOR TFT LCD PANELS

Two studies from the period document the dramatic changes that television brought to children’s allocation of time. First, Maccoby (1951) surveyed 622 children in Boston in 1950 and 1951 and matched children with and without television by age, sex, and socioeconomic status. The study found that radio lis- tening, movie watching, and reading were substantially lower in the television group, but also that total media time was greater by approximately an hour and a half per day. 10 The television group went to bed almost half an hour later and spent less time on homework and active play. The second study, conducted in 1959, surveyed children in two similar towns in. | TPS65161 TPS65161A TPS65161B Texas Instruments SLVS617E-APRIL 2006-REVISED MARCH 2013 BIAS POWER SUPPLY FOR TV AND MONITOR TFT LCD PANELS Check for Samples TPS65161 TPS65161A TPS65161B FEATURES 8-V to Input Voltage Range VS Output Voltage Range up to 19 V TPS65161 has a Switch Current Limit TPS65161A has a Switch Current Limit TPS65161B has a Switch Current Limit and 100-mA Charge Pump Output Current Accurate 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 o---Ỵ- C1 2 22 pF J C3__ 1pF 8 12 20 21 L 22 16 9 VGL -5 V 50 mA C7 pF R3 620 kO C8 220 nF R4 150 kO C16 1pF C6 D2 -u pF 24 6 11 13 7 28 25 C9 -L- 22 nF C10 J10 nF D1 SL22 L1 10 pH C2 3 22 pF TPS65161 4 C5 I pF 15 C11 10 nF C17 22 nF L2 15 pH R2 56 kO C13 pF R5 560 kO VGH 32 V 50 mA Cb 100 nF 1 3 23______ 27 GD 10______ 14______ 17 18______ 19 2 26 VS 18V ---o SUP SW FREQ SW VINB FB VINB OS AVIN GND EN1 GD EN2 DRP DRN FBP FBN BOOT REF SWB PGND NC PGND FBB SS COMP DLY1 DLY2 II C4 22 pF C15 470 nF R1 825 kO R6 22 kO V LOGIC R7 2 kO D6 SL22 R8 kO C12 2 22pF Please be aware that an important notice concerning availability standard warranty and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PowerPAD is a trademark .