TPS65167A - 具有完全集成的正极充电泵、LDO 控制器、HVS (VDD/VGH) 和温度传感器

TPS65167A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，TPS65167A是具有完全集成的正极充电泵、LDO 控制器、HVS (VDD/VGH) 和温度传感器，本站介绍了TPS65167A的封装应用图解、特点和优点、功能等，并给出了与TPS65167A相关的TI元器件型号供参考。

TPS65167A - 具有完全集成的正极充电泵、LDO 控制器、HVS (VDD/VGH) 和温度传感器 - 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 TPS65167 offers a compact power supply solution to provide all voltages required by a LCD panel for large size monitor and TV panel applications running from a 12-V supply rail.

The device generates all 3 voltage rails for the TFT LCD bias (Vs, VGL and VGH). In addition to that it includes a step-down converter and a LDO controller to provide two logic voltage rails. The device incorporates a high voltage switch that can be controlled by a logic signal from the external timing controller (TCON). This function allows gate voltage shaping for VGH. The device also features a high voltage stress test where the output voltage of VGH is set to typically 30 V and the output voltage of Vs is programmable to any higher voltage. The high voltage stress test is enabled by pulling the HVS pin high. The device consists of a boost converter to provide the source voltage Vs operating at a fixed switching frequency of 750 kHz. A fully integrated positive charge pump, switching automatically between doubler and tripler mode provides an adjustable regulated TFT gate on voltage VGH. A negative charge pump driver provides adjustable regulated output voltages VGL. To minimize external components the charge pumps for VGH and VGL operate at a fixed switching frequency of 1.5 MHz. The device includes safety features like overvoltage protection of the boost converter, short-circuit protection of VGH and VGL as well as thermal shutdown.

产品特性

6 V to 14 V Input Voltage Range
Vs Output Voltage Range up to 19 V
Boost Converter With 3.5-A Switch Current
Boost Converter Overvoltage Protection
2.5-A Step-Down Converter With 3.3-V Fixed or Adjustable Output
750 kHz Fixed Switching Frequency
150 mA Negative Charge Pump Driver for VGL
50 mA Positive Charge Pump for VGH
LDO Controller for Logic Supply
Gate Voltage Shaping for VGH
Temperature Sensor Output
TPS65167 - High Voltage Stress Test Vs and VGH
TPS65167A - High Voltage Stress Test Vs only
Adjustable Sequencing
Gate Drive Signal for Isolation Switch
Short-Circuit Protection
Internal Soft-start
Thermal Shutdown
Available in 6 × 6 mm 40 Pin QFN Package
APPLICATIONS
- LCD TV Panel
- LCD Monitor

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TPS65167A - 具有完全集成的 正极充电泵、LDO 控制器、HVS (VDD/VGH) 和温度 传感器

TPS65167A - 具有完全集成的正极充电泵、LDO 控制器、HVS (VDD/VGH) 和温度传感器