- 制造厂商:TI
- 产品类别:电源管理
- 技术类目:LCD 和 OLED 显示电源和驱动器
- 功能描述:4 通道 LCD 偏置,具有用于外部电荷泵的稳压器
- 点击这里打开及下载TPS65170的技术文档资料
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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.
- 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
- Display type
- LCD unipolar
- IC integration
- LCD bias
- Vin (Min) (V)
- 8.6
- Vin (Max) (V)
- 14.7
- 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
TPS65170的完整型号有:TPS65170RHDR、TPS65170RHDT,以下是这些产品的关键参数及官网采购报价:
TPS65170RHDR,工作温度:-40 to 85,封装:VQFN (RHD)-28,包装数量MPQ:3000个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAU,TI官网TPS65170RHDR的批量USD价格:.425(1000+)
TPS65170RHDT,工作温度:-40 to 85,封装:VQFN (RHD)-28,包装数量MPQ:250个,MSL 等级/回流焊峰值温度:Level-2-260C-1 YEAR,引脚镀层/焊球材料:NIPDAU,TI官网TPS65170RHDT的批量USD价格:.51(1000+)
TPS65170EVM-559 — 用于 TPS65170 LCD 偏置电源的评估模块
TPS65170EVM-559 是一块完全组装且经过测试的电路板,用于评估 TPS65170 LCD 偏置电源。由 8V 至 14.7V 输入电压供电,TPS65170EVM-559 可以产生 15.5V 输出电压(最小开关电流限制为 2.8A)和 3.3V 输出电压(开关电流限制为 1.5A)。TPS65170EVM-559 还负责控制两个外部充电泵,它们可以产生一个正电压和一个负电压。PSPICE-FOR-TI — 适用于 TI 设计和模拟工具的 PSpice
PSpice for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence 的模拟分析引擎。PSpice for TI 可免费使用,包括业内超大的模型库之一,涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。借助?PSpice for TI 的设计和仿真环境及其内置的模型库,您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案,然后再进行布局和制造,可缩短产品上市时间并降低开发成本。
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