Startseite Energiemanagement Stromversorgung und Treiber für LCD & OLED -Displays

TPS65160

AKTIV

4-kanalige LCD-Vorspannung (2,8 A min Aufwärtsstrombegr.) Bis zu 20 V, 2 A min. Abwärts-Strombegr.)

Produktdetails

Display type LCD unipolar IC integration LCD bias Vin (min) (V) 8 Vin (max) (V) 14 Applications 13 to 21 inches, 21 inches and above Source driver voltage (max) (V) 20 Level shifter/scan driver (Ch) 0 V_NEG (max) (V) -2 Features Adjustable sequencing Topology Boost, Buck Rating Catalog Operating temperature range (°C) -40 to 85
Display type LCD unipolar IC integration LCD bias Vin (min) (V) 8 Vin (max) (V) 14 Applications 13 to 21 inches, 21 inches and above Source driver voltage (max) (V) 20 Level shifter/scan driver (Ch) 0 V_NEG (max) (V) -2 Features Adjustable sequencing Topology Boost, Buck Rating Catalog Operating temperature range (°C) -40 to 85
HTSSOP (PWP) 28 62.08 mm² 9.7 x 6.4
  • 8-V to 14-V Input Voltage Range
  • VS Output Voltage Range up to 20 V
  • 1% Accurate Boost Converter With 2.8-A Switch Current
  • 1.5% accurate 1.8-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
  • 23-V (TPS65160) Overvoltage Protection
  • 19.5-V (TPS65160A) Overvoltage Protection
  • Thermal Shutdown
  • Available in HTSSOP-28 Package
  • 8-V to 14-V Input Voltage Range
  • VS Output Voltage Range up to 20 V
  • 1% Accurate Boost Converter With 2.8-A Switch Current
  • 1.5% accurate 1.8-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
  • 23-V (TPS65160) Overvoltage Protection
  • 19.5-V (TPS65160A) Overvoltage Protection
  • Thermal Shutdown
  • Available in HTSSOP-28 Package

The TPS65160 offers a compact power supply solution to provide all four voltages required by thin-film transistor (TFT) LCD panel. With its high current capabilities, the device is ideal for large screen monitor panels and LCD TV applications.

The device can be powered directly from a 12-V input voltage generating the bias voltages VGH and VGL, as well as the source voltage VS and logic voltage for the LCD panels. The device consists of a boost converter to provide the source voltage VS and a step-down converter to provide the logic voltage for the system. A positive and a negative charge-pump driver provide adjustable regulated output voltages VGL and VGH to bias the TFT. Both boost and step-down converters, as well as the charge-pump driver, operate with a fixed switching frequency of 500 kHz or 750 kHz, selectable by the FREQ pin. The TPS65160 includes adjustable power-on sequencing. The device includes safety features like overvoltage protection of the boost converter and short-circuit protection of the buck converter, as well as thermal shutdown. Additionally, the device incorporates a gate drive signal to control an isolation MOSFET switch in series with VS or VGH. See the application circuits at the end of this data sheet.

The TPS65160 offers a compact power supply solution to provide all four voltages required by thin-film transistor (TFT) LCD panel. With its high current capabilities, the device is ideal for large screen monitor panels and LCD TV applications.

The device can be powered directly from a 12-V input voltage generating the bias voltages VGH and VGL, as well as the source voltage VS and logic voltage for the LCD panels. The device consists of a boost converter to provide the source voltage VS and a step-down converter to provide the logic voltage for the system. A positive and a negative charge-pump driver provide adjustable regulated output voltages VGL and VGH to bias the TFT. Both boost and step-down converters, as well as the charge-pump driver, operate with a fixed switching frequency of 500 kHz or 750 kHz, selectable by the FREQ pin. The TPS65160 includes adjustable power-on sequencing. The device includes safety features like overvoltage protection of the boost converter and short-circuit protection of the buck converter, as well as thermal shutdown. Additionally, the device incorporates a gate drive signal to control an isolation MOSFET switch in series with VS or VGH. See the application circuits at the end of this data sheet.

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Technische Dokumentation

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Typ Titel Datum
* Data sheet Bias Power Supply for TV and Monitor TFT LCD Panel datasheet (Rev. C) 05 Mär 2013
Application note Basic Calculation of a Boost Converter's Power Stage (Rev. D) PDF | HTML 28 Okt 2022
Application note Understanding Undervoltage Lockout in Power Devices (Rev. A) 19 Sep 2018
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
Application note Generation of a VCOM buffer input using PWM signal 21 Dez 2015
Application note Basic Calculation of a Buck Converter's Power Stage (Rev. B) 17 Aug 2015
EVM User's guide TPS65160EVM-194 (Rev. B) 16 Apr 2008
Application note Minimizing Ringing at the Switch Node of a Boost Converter 15 Sep 2006
Application note Bias Power Supply for TV and Monitor TFT LCD Panels Using the TPS65160 13 Jun 2006
EVM User's guide TPS65160EVM 03 Mär 2006

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