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TPS65170 具有用于外部充电泵的稳压器的 4 通道 LCD 偏置

TPS65170 描述

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

TPS65170
Vin(Min)(V) 8.6
Vin(Max)(V) 14.7
Vout(Min)(V) 15
Vout(Max)(V) 18.5
DC/DC Converter 2
Charge Pump 2
Pin/Package 28VQFN
Vlogic1 Ilim(Min)(A) Buck 1.5
Vlogic1(Min)(V) Fixed 3.3
VGH / Vpos (Igh) External Linear Regulator
VGL / Vneg (Igl) External Linear Regulator
Operating Temperature Range(°C) -40 to 85
Switching Frequency(Typ)(kHz) 750
AVDD Ilim(Min)(A) 2.8
Analog Voltage AV/DD(Max)(V) 18.5
Over-Voltage Protection(Max)(V) 5% of AVDD
Regulated Outputs(#) 4
Isolation Switch External
Rating Catalog
Topology Buck, Boost, Charge Pump
Special Function Reset Generator
Iout(Max)(A) 2
Iq(Typ)(mA) 1
Vout1(V) 3.3
Target Application TV, Monitor 12V
TPS65170 特性
TPS65170 芯片订购指南
器件 状态 温度 (oC) 价格(美元) | Quantity 封装 | 引脚 封装数量 | 封装载体 丝印标记
TPS65170RHDR ACTIVE -40 to 85 1.40 | 1ku VQFN (RHD) | 28 3000 | LARGE T&R  
TPS65170RHDT ACTIVE -40 to 85 1.65 | 1ku VQFN (RHD) | 28 250 | SMALL T&R  
TPS65170 质量与无铅数据
器件 环保计划* 铅/焊球涂层 MSL 等级/回流焊峰 环保信息与无铅 (Pb-free) DPPM / MTBF / FIT 率
TPS65170RHDR Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPS65170RHDR TPS65170RHDR
TPS65170RHDT Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPS65170RHDT TPS65170RHDT
TPS65170 应用技术支持与电子电路设计开发资源下载
  1. TPS65170 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器照明解决方案产品选型与价格 . xls
  3. 照明和显示屏电源选择指南 (PDF 1427 KB)
  4. 笔记本电脑指南 (Rev. A) (PDF 2774 KB)
  5. 全面认识开关型电源中的BUCK-BOOST功率级 (Rev. A) (PDF 2206 KB)
  6. PowerPADTM Made Easy (PDF 57 KB)
  7. 标准线性产品交叉参考 (Rev. D) (PDF 1058 KB)
  8. 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
  9. 所选封装材料的热学和电学性质 (PDF 645 KB)
  10. 高速数据转换 (PDF 1967 KB)
TPS65170 相关工具
名称 型号 公司 工具/软件类型
TPS65170 评估模块 TPS65170EVM Texas Instruments 开发电路板/EVM
TPS65170 评估模块 TPS65170EVM-233 Texas Instruments 开发电路板/EVM
TPS65170 评估模块 TPS65170EVM-278 Texas Instruments 开发电路板/EVM