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TPS65146

正在供货

具有 LDO、GPM 的 3 通道 LCD 偏置、VCOM 缓冲器和复位 IC 

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数据表

TPS65146

正在供货
数据表 立即订购

产品详情

Display type LCD unipolar IC integration LCD bias, VCOM Vin (min) (V) 2.5 Vin (max) (V) 6 Applications 13 to 21 inches Source driver voltage (min) (V) 7 Source driver voltage (max) (V) 16.5 Level shifter/scan driver (Ch) 0 Features GPM or GVS, Output discharge, Reset generator, VCOM or op amp Topology Boost Rating Catalog Operating temperature range (°C) -40 to 85
Display type LCD unipolar IC integration LCD bias, VCOM Vin (min) (V) 2.5 Vin (max) (V) 6 Applications 13 to 21 inches Source driver voltage (min) (V) 7 Source driver voltage (max) (V) 16.5 Level shifter/scan driver (Ch) 0 Features GPM or GVS, Output discharge, Reset generator, VCOM or op amp Topology Boost Rating Catalog Operating temperature range (°C) -40 to 85
VQFN (RGE) 24 16 mm² 4 x 4
  • 2.5V to 6.0V Input Voltage Range
  • 16.5V Boost Converter With 2A Switch Current
  • 650kHz/1.2MHz Selectable Switching Frequency
  • Adjustable Soft-Start for the Boost Converter
  • 500mA LDO
  • Reset Function (XAO Signal)
  • Regulated VGH
  • Gate Voltage Shaping
  • VCOM Buffer
  • LCD Discharge Function
  • Overvoltage Protection
  • Thermal Shutdown
  • Undervoltage Lockout
  • 24-Pin 4×4mm QFN Package
  • APPLICATIONS
    • Notebook PC
    • Monitor
  • 2.5V to 6.0V Input Voltage Range
  • 16.5V Boost Converter With 2A Switch Current
  • 650kHz/1.2MHz Selectable Switching Frequency
  • Adjustable Soft-Start for the Boost Converter
  • 500mA LDO
  • Reset Function (XAO Signal)
  • Regulated VGH
  • Gate Voltage Shaping
  • VCOM Buffer
  • LCD Discharge Function
  • Overvoltage Protection
  • Thermal Shutdown
  • Undervoltage Lockout
  • 24-Pin 4×4mm QFN Package
  • APPLICATIONS
    • Notebook PC
    • Monitor

The TPS65146 offers a very compact power supply solution designed to supply the LCD bias voltages required by TFT (Thin Film Transistor) LCD panels running from a typical 3.3 V or 5 V supply rail. The device integrates a step-up converter for VS (Source Driver voltage), a positive charge pump regulator for VGH (Gate Driver High voltage), a logic voltage rail using an integrated LDO and a Vcom buffer driving the LCD backplane. In addition to that, a gate voltage shaping block is integrated for VGH, modulating the signal (into VGHM) with high flexibility by using a logic input VFLK and an external discharge resistor connected to RE pin. Also, an external discrete negative charge pump can be set using the boost converter of the TPS65146 to generate VGL (Gate Driver Low voltage). The integrated reset function together with the LCD discharge function available in the TPS65146 provide the signals enabling the discharge of the LCD TFT pixels when powering-off. The device includes safety features like overvoltage protection (OVP), as well as thermal shutdown.

The TPS65146 offers a very compact power supply solution designed to supply the LCD bias voltages required by TFT (Thin Film Transistor) LCD panels running from a typical 3.3 V or 5 V supply rail. The device integrates a step-up converter for VS (Source Driver voltage), a positive charge pump regulator for VGH (Gate Driver High voltage), a logic voltage rail using an integrated LDO and a Vcom buffer driving the LCD backplane. In addition to that, a gate voltage shaping block is integrated for VGH, modulating the signal (into VGHM) with high flexibility by using a logic input VFLK and an external discharge resistor connected to RE pin. Also, an external discrete negative charge pump can be set using the boost converter of the TPS65146 to generate VGL (Gate Driver Low voltage). The integrated reset function together with the LCD discharge function available in the TPS65146 provide the signals enabling the discharge of the LCD TFT pixels when powering-off. The device includes safety features like overvoltage protection (OVP), as well as thermal shutdown.

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TPS65149 正在供货 用于使用 ASG / GIP 技术的 LCD 面板的 LCD 偏置解决方案 This product has no LDO, adds an 8 ch level shifter and has programmable Vcom & Vgl.
TPS65155 正在供货 用于门阵列 (GOA) 面板的具有电平转换器的 LCD 偏置解决方案 This product has no LDO, adds an 8 ch level shifter and Vgl.

技术文档

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类型 标题 下载最新的英语版本 日期
* 数据表 Compact LCD Bias IC for Notebook & Monitor with LDO, VCOM Buffer and Reset IC 数据表 (Rev. A) 2009年 6月 16日
应用手册 Understanding Undervoltage Lockout in Power Devices (Rev. A) 2018年 9月 19日
应用手册 Generation of a VCOM buffer input using PWM signal 2015年 12月 21日

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包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

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