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TPS65150

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具有集成 VCOM 缓冲器的通用紧凑型 LCD 偏置电源

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数据表

TPS65150

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产品详情

Display type LCD unipolar IC integration LCD bias, VCOM Vin (min) (V) 1.8 Vin (max) (V) 6 Applications 7 inches or less, 7 to 13 inches Source driver voltage (max) (V) 15 Level shifter/scan driver (Ch) 0 V_POS (max) (V) 30 V_NEG (max) (V) -2 Features Adjustable sequencing, GPM or GVS, 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) 1.8 Vin (max) (V) 6 Applications 7 inches or less, 7 to 13 inches Source driver voltage (max) (V) 15 Level shifter/scan driver (Ch) 0 V_POS (max) (V) 30 V_NEG (max) (V) -2 Features Adjustable sequencing, GPM or GVS, VCOM or op amp Topology Boost Rating Catalog Operating temperature range (°C) -40 to 85
HTSSOP (PWP) 24 49.92 mm² (7.8 mm × 6.4 mm) VQFN (RGE) 24 16 mm² (4 mm × 4 mm)
  • 1.8-V to 6-V Input Voltage Range
  • Integrated VCOM Buffer
  • High-voltage Switch to Isolate V(VGH)
  • Gate-Voltage Shaping of V(VGH)
  • 2-A Internal MOSFET switch
  • Main Output V(VS) up to 15 V With <1% Output Voltage Accuracy
  • Virtual-Synchronous Converter Technology
  • Regulated Negative Charge Pump Driver V(VGL)
  • Regulated Positive Charge Pump Driver V(CPI)
  • Adjustable Power-On Sequencing
  • Adjustable Fault Detection Timing
  • Gate Drive Signal for External Isolation MOSFET
  • Out-of-Regulation Protection
  • Overvoltage Protection
  • Thermal Shutdown
  • Available in HTSSOP-24 Package
  • Available in VQFN-24 Package
  • 1.8-V to 6-V Input Voltage Range
  • Integrated VCOM Buffer
  • High-voltage Switch to Isolate V(VGH)
  • Gate-Voltage Shaping of V(VGH)
  • 2-A Internal MOSFET switch
  • Main Output V(VS) up to 15 V With <1% Output Voltage Accuracy
  • Virtual-Synchronous Converter Technology
  • Regulated Negative Charge Pump Driver V(VGL)
  • Regulated Positive Charge Pump Driver V(CPI)
  • Adjustable Power-On Sequencing
  • Adjustable Fault Detection Timing
  • Gate Drive Signal for External Isolation MOSFET
  • Out-of-Regulation Protection
  • Overvoltage Protection
  • Thermal Shutdown
  • Available in HTSSOP-24 Package
  • Available in VQFN-24 Package

The TPS65150 device offers a very compact and small power supply solution that provides all three voltages required by thin film transistor (TFT) LCD displays. With an input voltage range of 1.8 V to 6 V the device is ideal for notebooks powered by a 2.5-V or 3.3-V input rail or monitor applications with a 5-V input voltage rail. Additionally the TPS65150 device provides an integrated high current buffer to provide the VCOM voltage for the TFT backplane.

Two regulated adjustable charge pump driver provide the positive V(VGH) and negative V(VGL) bias voltages for the TFT. The device incorporates adjustable power-on sequencing for V(VGL) as well as for V(VGH). This avoids any additional external components to implement application specific sequencing. The device has an integrated high-voltage switch to isolate V(VGH).

The same internal circuit can also be used to provide a gate shaping signal of V(VGH) for the LCD panel controlled by the signal applied to the CTRL input. For highest safety, the TPS65150 device has an integrated adjustable shutdown latch feature, which allows application-specific flexibility. The device monitors the outputs (V(VS), V(VGL), V(VGH)); and, as soon as one of the outputs falls below its power good threshold, the device enters shutdown latch, after its adjustable delay time has passed by.

The TPS65150 device offers a very compact and small power supply solution that provides all three voltages required by thin film transistor (TFT) LCD displays. With an input voltage range of 1.8 V to 6 V the device is ideal for notebooks powered by a 2.5-V or 3.3-V input rail or monitor applications with a 5-V input voltage rail. Additionally the TPS65150 device provides an integrated high current buffer to provide the VCOM voltage for the TFT backplane.

Two regulated adjustable charge pump driver provide the positive V(VGH) and negative V(VGL) bias voltages for the TFT. The device incorporates adjustable power-on sequencing for V(VGL) as well as for V(VGH). This avoids any additional external components to implement application specific sequencing. The device has an integrated high-voltage switch to isolate V(VGH).

The same internal circuit can also be used to provide a gate shaping signal of V(VGH) for the LCD panel controlled by the signal applied to the CTRL input. For highest safety, the TPS65150 device has an integrated adjustable shutdown latch feature, which allows application-specific flexibility. The device monitors the outputs (V(VS), V(VGL), V(VGH)); and, as soon as one of the outputs falls below its power good threshold, the device enters shutdown latch, after its adjustable delay time has passed by.
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技术文档

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顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 TPS65150 Low Input Voltage, Compact LCD Bias IC With VCOM Buffer 数据表 (Rev. B) PDF | HTML 2016-1-7
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 2022-11-11
应用手册 Understanding Undervoltage Lockout in Power Devices (Rev. A) 2018-9-19
选择指南 电源管理指南 2018 2018-7-31
应用手册 How to Calculate the Output Voltage Ranges of the Charge Pumps in the TPS65150 2017-2-6
技术文章 Waveform audit: my boost converter has an off-ramp! PDF | HTML 2016-7-6
技术文章 Pump it up with charge pumps – Part 1 PDF | HTML 2016-2-1
应用手册 Generation of a VCOM buffer input using PWM signal 2015-12-21
用户指南 Evaluation Module for TPS65150 Low Input Voltage, Compact LCD Bias IC With VCOM (Rev. A) 2015-10-5
应用手册 最小化升压转换器开关节点处的振铃 英语版 2008-7-15

设计与开发

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评估板

TMDSLCD1EVM — 1280x800 LCD 显示附件套件

1280x800 LCD 显示附件套件是一款用于 AM65x IDK (TMDX654IDKEVM) 的附加附件，可增加触摸和显示功能，适用于 HMI 和工业 PC 评估以及其他需要显示器的用例。1280x800 LCD 显示附件套件与 AM65x EVM (TMDX654GPEVM) 捆绑销售，但也可以作为替换产品单独购买。LCD 屏幕为 10.1" 显示屏，具有 WXGA 分辨率 (1280x800) 并支持 10 点电容式触摸。

支持的产品和硬件
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评估板

TPS65150EVM-697 — TPS65150 具有集成 VCOM 的低输入电压 LCD 电源（偏置）评估模块

TPS65150 提供了一种非常紧凑的小型电源解决方案，可提供薄膜晶体管 (TFT) LCD 显示屏所需的全部三种电压。该器件的输入电压范围为 1.8V 至 6V，非常适合由 2.5V 或 3.3V 输入轨供电的笔记本电脑或使用 5V 输入电压轨的监控应用。此外，TPS65150 还提供集成的高电流缓冲器，为 TFT 背板提供 VCOM 电压。

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参考设计

TIDA-01613 — 符合 CISPR 22 B 类标准的显示偏置 IC 参考设计

此参考设计有利于 TPS65150 LCD 偏置 IC 满足 CISPR 22 B 类标准。它侧重于辐射发射测试，可帮助设计人员满足工业显示应用的法规要求。TPS65150 LCD 偏置 IC 提供用于驱动薄膜晶体管 (TFT) LCD 的所有三种必要电压（由单节电池电压供电）。
支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
HTSSOP (PWP) 24 Ultra Librarian
VQFN (RGE) 24 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

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