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TPS65175B

AKTIV

Vollständig programmierbarer LCD-Bias-IC für GIP-TV mit 12-Kanal-LVL-Schaltern, Gamma-Puffern

Produktdetails

Display type LCD unipolar IC integration Gamma buffer, LCD bias, LCD level shifter, VCOM Vin (min) (V) 8.6 Vin (max) (V) 15.5 Applications 13 to 21 inches, 21 inches and above Source driver voltage (min) (V) 12.7 Source driver voltage (max) (V) 19 Level shifter/scan driver (Ch) 12 V_POS (min) (V) 19 V_POS (max) (V) 34 V_NEG (min) (V) -8.1 V_NEG (max) (V) -1.8 Features GPM or GVS, Gamma buffer, HAVDD, I2C interface, Level shifter, Reset generator, Temperature sensor or compensation, VCOM or op amp Topology Boost, Buck Rating Catalog Operating temperature range (°C) -40 to 85
Display type LCD unipolar IC integration Gamma buffer, LCD bias, LCD level shifter, VCOM Vin (min) (V) 8.6 Vin (max) (V) 15.5 Applications 13 to 21 inches, 21 inches and above Source driver voltage (min) (V) 12.7 Source driver voltage (max) (V) 19 Level shifter/scan driver (Ch) 12 V_POS (min) (V) 19 V_POS (max) (V) 34 V_NEG (min) (V) -8.1 V_NEG (max) (V) -1.8 Features GPM or GVS, Gamma buffer, HAVDD, I2C interface, Level shifter, Reset generator, Temperature sensor or compensation, VCOM or op amp Topology Boost, Buck Rating Catalog Operating temperature range (°C) -40 to 85
VQFN (RSH) 56 49 mm² 7 x 7
  • 8.6V to 14.7V Input Voltage Range
  • Boost Converter VDD: 12.7V…19V (6-Bit)
  • Integrated Input-to-Output Isolation Switch
  • Buck Converter HVDD: VDD Tracking
  • Buck Converter VCC: 1.6V...2.0V & 3.0V…3.6V (4-Bit)
  • Positive Charge Pump VGH:
    • 19V…34V for Low Temperature (4-Bit)
    • 17V…32V for High Temperature (4-Bit)
  • Negative Charge Pump VGL: –1.8V…–8.1V (6-Bit)
  • 6-Ch Gamma Buffer:
    • 3-Ch: VDD…HVDD (9-Bit)
    • 3-Ch: HVDD...GND (9-Bit)
  • 9-Bit VCOM Reference
  • 3-Bit VCOM Gain
  • VCOM_DAC Output for External Operational Amplifier Reference
  • Temperature Compensation for VGH and VCOM
  • Reset Signal with Programmable Delay Time
  • Programmable Sequencing Delays (4 × 3-Bit)
  • Thermal Shutdown
  • 12-Channel Level Shifters:
    • Supports Forward and Reverse Operation
    • Abnormal Operation Detection
  • 56-Pin 7-mm × 7-mm QFN Package
  • 8.6V to 14.7V Input Voltage Range
  • Boost Converter VDD: 12.7V…19V (6-Bit)
  • Integrated Input-to-Output Isolation Switch
  • Buck Converter HVDD: VDD Tracking
  • Buck Converter VCC: 1.6V...2.0V & 3.0V…3.6V (4-Bit)
  • Positive Charge Pump VGH:
    • 19V…34V for Low Temperature (4-Bit)
    • 17V…32V for High Temperature (4-Bit)
  • Negative Charge Pump VGL: –1.8V…–8.1V (6-Bit)
  • 6-Ch Gamma Buffer:
    • 3-Ch: VDD…HVDD (9-Bit)
    • 3-Ch: HVDD...GND (9-Bit)
  • 9-Bit VCOM Reference
  • 3-Bit VCOM Gain
  • VCOM_DAC Output for External Operational Amplifier Reference
  • Temperature Compensation for VGH and VCOM
  • Reset Signal with Programmable Delay Time
  • Programmable Sequencing Delays (4 × 3-Bit)
  • Thermal Shutdown
  • 12-Channel Level Shifters:
    • Supports Forward and Reverse Operation
    • Abnormal Operation Detection
  • 56-Pin 7-mm × 7-mm QFN Package

The TPS65175B/C provides a simple and economic power supply solution for a wide variety of LCD bias applications. The device provides all supply rails needed by a TFT-LCD panel but also 6 gamma references, a supply rail for LVDS support, as well as a Vcom reference. The device also integrates a VCOM_DAC rail providing the reference for an external non-inverting operational amplifier input. A 12-Channel Level Shifter is also integrated. The solution is delivered in a small 7×7 mm QFN package.

The TPS65175B/C provides a simple and economic power supply solution for a wide variety of LCD bias applications. The device provides all supply rails needed by a TFT-LCD panel. VCC and RST for the T-Con. VDD and HVDD for the Source Driver. VGH and VGL for the Gate Driver or the Level Shifters. A VCOM operational amplifier is also integrated to provide a common plane reference. The VGH and VCOM / VCOM_DAC voltages can be compensated for low and high temperatures. The transition from one programmed value to another is made using an external thermistor connected to the IC. In addition, a 6-channel Gamma Buffer as well as a 12-Channel Level Shifter are integrated. All output rails and delay times are programmable by a two-wire interface: a single BOM (Bill of Material) can cover several panel types and sizes whose desired output levels can be programmed in production and stored in a non-volatile memory embedded into the TPS65175B/C. The solution is delivered in a small 7 mm × 7 mm QFN-56 package.

The TPS65175B/C provides a simple and economic power supply solution for a wide variety of LCD bias applications. The device provides all supply rails needed by a TFT-LCD panel but also 6 gamma references, a supply rail for LVDS support, as well as a Vcom reference. The device also integrates a VCOM_DAC rail providing the reference for an external non-inverting operational amplifier input. A 12-Channel Level Shifter is also integrated. The solution is delivered in a small 7×7 mm QFN package.

The TPS65175B/C provides a simple and economic power supply solution for a wide variety of LCD bias applications. The device provides all supply rails needed by a TFT-LCD panel. VCC and RST for the T-Con. VDD and HVDD for the Source Driver. VGH and VGL for the Gate Driver or the Level Shifters. A VCOM operational amplifier is also integrated to provide a common plane reference. The VGH and VCOM / VCOM_DAC voltages can be compensated for low and high temperatures. The transition from one programmed value to another is made using an external thermistor connected to the IC. In addition, a 6-channel Gamma Buffer as well as a 12-Channel Level Shifter are integrated. All output rails and delay times are programmable by a two-wire interface: a single BOM (Bill of Material) can cover several panel types and sizes whose desired output levels can be programmed in production and stored in a non-volatile memory embedded into the TPS65175B/C. The solution is delivered in a small 7 mm × 7 mm QFN-56 package.

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TPS65175 AKTIV Vollständig programmierbarer LCD-Bias-IC für GIP-TV mit integrierten 12-Kanal-Pegelumsetzern und 6-K This product has the same features except the VCOM_DAC Output for external operational amplifier reference.

Technische Dokumentation

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Typ Titel Datum
* Data sheet TPS65175B/C 1 page email address datasheet 24 Jul 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
Application note Basic Calculation of a Buck Converter's Power Stage (Rev. B) 17 Aug 2015
Application note Minimizing Ringing at the Switch Node of a Boost Converter 15 Sep 2006

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