TPS65175 - 高度集成的 LCD 偏置，带电平位移器、伽马缓冲以及用于 TV 的 VCOM

TPS65175是TI德州仪器公司的一款电流感应放大器、I2C/PMBus监控器产品，TPS65175是高度集成的 LCD 偏置，带电平位移器、伽马缓冲以及用于 TV 的 VCOM，本站介绍了TPS65175的封装应用图解、特点和优点、功能等，并给出了与TPS65175相关的TI元器件型号供参考。

TPS65175 - 高度集成的 LCD 偏置，带电平位移器、伽马缓冲以及用于 TV 的 VCOM - 电流感应放大器、I2C/PMBus监控器 - 保护、监控和热插拔 - 德州仪器

产品描述

The TPS65175 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. A 12-Channel Level Shifter is also integrated. The solution is delivered in a small 7×7 mm QFN package.

The TPS65175 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 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 TPS65175. The solution is delivered in a small 7 mm × 7 mm QFN-56 package.

产品特性

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
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

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