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. V_CC and RST for the T-Con. V_DD and HV_DD for the Source Driver. V_GH and V_GL for the Gate Driver or the Level Shifters. A V_COM operational amplifier is also integrated to provide a common plane reference. The V_GH and V_COM / V_{COM_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.

• 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

• Display type
• LCD unipolar
• IC integration
• Gamma buffer, LCD bias, LCD level shifter, VCOM
• Vin (Min) (V)
• 8.6
• Vin (Max) (V)
• 15.5
• 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

TPS65175B的完整型号有：TPS65175BRSHR，以下是这些产品的关键参数及官网采购报价：

TPS65175BRSHR，工作温度：-40 to 85，封装：VQFN (RSH)-56，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-3-260C-168 HR，引脚镀层/焊球材料：NIPDAU，TI官网TPS65175BRSHR的批量USD价格：1.408（1000+）

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