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TPS65160A - 产品图解：
TPS65160A-4 通道 LCD 偏置（2.8A 最低 升压 Ilim. 高达 17.5V，2A 最低 降压 Ilim）
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TI产品 - TPS65160A介绍

TPS65160A - 4 通道 LCD 偏置（2.8A 最低 升压 Ilim. 高达 17.5V，2A 最低 降压 Ilim）

TPS65160A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，TPS65160A是4 通道 LCD 偏置（2.8A 最低 升压 Ilim. 高达 17.5V，2A 最低 降压 Ilim），本站介绍了TPS65160A的封装应用图解、特点和优点、功能等，并给出了与TPS65160A相关的TI元器件型号供参考。

TPS65160A - 4 通道 LCD 偏置（2.8A 最低 升压 Ilim. 高达 17.5V，2A 最低 降压 Ilim） - 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 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.

产品特性

  • 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

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