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TPS65170

最晚可采购期限

具有用于外部充电泵的稳压器的 4 通道 LCD 偏置

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数据表

TPS65170

最晚可采购期限
数据表 立即订购

产品详情

Display type LCD unipolar IC integration LCD bias Vin (min) (V) 8.6 Vin (max) (V) 14.7 Applications 13 to 21 inches, 21 inches and above Source driver voltage (min) (V) 13 Source driver voltage (max) (V) 18.5 Level shifter/scan driver (Ch) 0 Features Reset generator Topology Boost, Buck Rating Catalog Operating temperature range (°C) -40 to 85
Display type LCD unipolar IC integration LCD bias Vin (min) (V) 8.6 Vin (max) (V) 14.7 Applications 13 to 21 inches, 21 inches and above Source driver voltage (min) (V) 13 Source driver voltage (max) (V) 18.5 Level shifter/scan driver (Ch) 0 Features Reset generator Topology Boost, Buck Rating Catalog Operating temperature range (°C) -40 to 85
VQFN (RHD) 28 25 mm² 5 x 5
  • 8.6V to 14.7V Input Voltage Range
  • 2.8A Boost Converter Switch Current Limit
  • Boost Converter Output Voltages up to 18.5V
  • Boost and Buck Converter Short-Circuit Protection
  • 1.5A Buck Converter Switch Current Limit
  • Fixed 750kHz Switching Frequency for Buck and Boost Converters
  • Fixed Buck Converter Soft-Start
  • Programmable Boost Converter Soft-Start
  • Two Charge Pump Controllers to Regulate VGH and VGL
  • Control Signal for External High-Side MOSFET Isolation Switch
  • Reset Signal With Programmable Reset Pulse Duration
  • Thermal Shutdown
  • 28-Pin 5×5 mm QFN Package
  • APPLICATIONS
    • LCD TVs and Monitors
  • 8.6V to 14.7V Input Voltage Range
  • 2.8A Boost Converter Switch Current Limit
  • Boost Converter Output Voltages up to 18.5V
  • Boost and Buck Converter Short-Circuit Protection
  • 1.5A Buck Converter Switch Current Limit
  • Fixed 750kHz Switching Frequency for Buck and Boost Converters
  • Fixed Buck Converter Soft-Start
  • Programmable Boost Converter Soft-Start
  • Two Charge Pump Controllers to Regulate VGH and VGL
  • Control Signal for External High-Side MOSFET Isolation Switch
  • Reset Signal With Programmable Reset Pulse Duration
  • Thermal Shutdown
  • 28-Pin 5×5 mm QFN Package
  • APPLICATIONS
    • LCD TVs and Monitors

The TPS65170 provides a simple and economic power supply solution for a wide variety of LCD bias applications.

In typical display panel applications, the boost converter generates the display panel’s source voltage VS, the buck converter generates the system’s logic supply VLOGIC, and the two charge pump controllers regulate the external charge pumps generating the display transistors’ on and off supplies VGH and VGL.

By using external transistors to regulate the charge pump output voltage, power dissipation in the IC is significantly reduced, simplifying PCB thermal design and improving reliability.

The TPS65170 also provides a reset circuit that monitors the buck converter output (VLOGIC) and generates a reset signal for the timing controller during power-up.

A control signal can also be generated to control an external MOSFET isolation switch located between the output of the boost converter and the display panel.

The TPS65170 provides a simple and economic power supply solution for a wide variety of LCD bias applications.

In typical display panel applications, the boost converter generates the display panel’s source voltage VS, the buck converter generates the system’s logic supply VLOGIC, and the two charge pump controllers regulate the external charge pumps generating the display transistors’ on and off supplies VGH and VGL.

By using external transistors to regulate the charge pump output voltage, power dissipation in the IC is significantly reduced, simplifying PCB thermal design and improving reliability.

The TPS65170 also provides a reset circuit that monitors the buck converter output (VLOGIC) and generates a reset signal for the timing controller during power-up.

A control signal can also be generated to control an external MOSFET isolation switch located between the output of the boost converter and the display panel.
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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 LCD Bias Supply 数据表 2009年 10月 15日
应用手册 Basic Calculation of a Boost Converter's Power Stage... (Rev. D) PDF | HTML 2022年 11月 21日
应用手册 升压转换器功率级的基本计算 (Rev. D) PDF | HTML 英语版 (Rev.D) PDF | HTML 2022年 11月 11日
应用手册 Understanding Undervoltage Lockout in Power Devices (Rev. A) 2018年 9月 19日
选择指南 电源管理指南 2018 (Rev. K) 2018年 7月 31日
选择指南 电源管理指南 2018 (Rev. R) 2018年 6月 25日
应用手册 Generation of a VCOM buffer input using PWM signal 2015年 12月 21日
用户指南 TPS65170 Evaluation Module 2010年 4月 28日

设计和开发

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封装 引脚 下载
VQFN (RHD) 28 查看选项
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订购和质量

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

支持和培训

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