主页 电源管理 LED 驱动器 背光 LED 驱动器
主页
电源管理
LED 驱动器
背光 LED 驱动器

TPS61181

正在供货

适用于笔记本电脑、具有内置 LDO 的 1.5A 白光 LED 驱动器

立即订购
数据表

TPS61181

正在供货
数据表 立即订购

米6体育平台手机版_好二三四详情

Number of channels 6 Vin (min) (V) 5 Vin (max) (V) 24 Vout (min) (V) 5 Vout (max) (V) 39 Type Inductive Switching frequency (max) (kHz) 1000 Duty cycle (max) (%) 94 LED current per channel (mA) 25 Peak efficiency (%) 90 Topology Boost Features Load Disconnect During Shutdown Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 6 Vin (min) (V) 5 Vin (max) (V) 24 Vout (min) (V) 5 Vout (max) (V) 39 Type Inductive Switching frequency (max) (kHz) 1000 Duty cycle (max) (%) 94 LED current per channel (mA) 25 Peak efficiency (%) 90 Topology Boost Features Load Disconnect During Shutdown Operating temperature range (°C) -40 to 85 Rating Catalog
WQFN (RTE) 16 9 mm² 3 x 3
  • 5 V to 24 V Input Voltage
  • Integrated 1.5 A 40 V MOSFET
  • 1.0 MHz/1.3 MHz Switching Frequency
  • Boost Output Auto-Adaptive to WLED Voltages
  • Small External Components
  • Integrated Loop Compensation
  • Six Current Sink of 25 mA
  • Up to 10 WLED in Series
  • Less Than 3% Current Matching and Accuracy
  • Up to 1000:1 PWM Brightness DImming Range
  • Minimized Output Ripple Under PWM Dimming
  • Driver for Input/Output Isolation PFET
  • True Shutdown
  • Over Voltage Protection
  • WLED Open/Short Protection
  • Built-in Soft Start
  • 16L 3 mm×3 mm QFN
  • 5 V to 24 V Input Voltage
  • Integrated 1.5 A 40 V MOSFET
  • 1.0 MHz/1.3 MHz Switching Frequency
  • Boost Output Auto-Adaptive to WLED Voltages
  • Small External Components
  • Integrated Loop Compensation
  • Six Current Sink of 25 mA
  • Up to 10 WLED in Series
  • Less Than 3% Current Matching and Accuracy
  • Up to 1000:1 PWM Brightness DImming Range
  • Minimized Output Ripple Under PWM Dimming
  • Driver for Input/Output Isolation PFET
  • True Shutdown
  • Over Voltage Protection
  • WLED Open/Short Protection
  • Built-in Soft Start
  • 16L 3 mm×3 mm QFN

The TPS61180/1/2 ICs provide highly integrated solutions for media size LCD backlight. These devices have a built-in high efficiency boost regulator with integrated 1.5A/40V power MOSFET. The six current sink regulators provide high precision current regulation and matching. In total, the device can support up to 60 WLED. In addition, the boost output automatically adjusts its voltage to the WLED forward voltage to improve efficiency.

The devices support pulse width modulation (PWM) brightness dimming. During dimming, the WLED current is turned on/off at the duty cycle and frequency determined by the PWM signal input on the DCRTL pin. One potential issue of PWM dimming is audible noises from the output ceramic capacitors. The TPS61180/1/2 family is designed to minimize this output AC ripple across a wide dimming duty cycle and frequency range; therefore, reducing the audible noise.

The TPS61180/1/2 ICs provide a driver output for an external PFET connected between the input and inductor. During short circuit or over-current conditions, the ICs turn off the external PFET and disconnect the battery from the WLEDs. The PFET is also turned off during IC shutdown (true shutdown) to prevent any leakage current of the battery. The device also integrates over-voltage protection, soft-start and thermal shutdown.

The TPS61180 IC requires external 3.3V IC supply, while TPS61181 and TPS61182 ICs have a built-in linear regulator for the IC supply. All the devices are in a 3×3 mm QFN package.

The TPS61180/1/2 ICs provide highly integrated solutions for media size LCD backlight. These devices have a built-in high efficiency boost regulator with integrated 1.5A/40V power MOSFET. The six current sink regulators provide high precision current regulation and matching. In total, the device can support up to 60 WLED. In addition, the boost output automatically adjusts its voltage to the WLED forward voltage to improve efficiency.

The devices support pulse width modulation (PWM) brightness dimming. During dimming, the WLED current is turned on/off at the duty cycle and frequency determined by the PWM signal input on the DCRTL pin. One potential issue of PWM dimming is audible noises from the output ceramic capacitors. The TPS61180/1/2 family is designed to minimize this output AC ripple across a wide dimming duty cycle and frequency range; therefore, reducing the audible noise.

The TPS61180/1/2 ICs provide a driver output for an external PFET connected between the input and inductor. During short circuit or over-current conditions, the ICs turn off the external PFET and disconnect the battery from the WLEDs. The PFET is also turned off during IC shutdown (true shutdown) to prevent any leakage current of the battery. The device also integrates over-voltage protection, soft-start and thermal shutdown.

The TPS61180 IC requires external 3.3V IC supply, while TPS61181 and TPS61182 ICs have a built-in linear regulator for the IC supply. All the devices are in a 3×3 mm QFN package.
filter 查找其他 背光 LED 驱动器
下载 观看带字幕的视频 视频

技术文档

star =有关此米6体育平台手机版_好二三四的 TI 精选热门文档
未找到结果。请清除搜索并重试。
查看全部 10
类型 标题 下载最新的英语版本 日期
* 数据表 WLED DRIVER FOR NOTEBOOK DISPLAY. 数据表 (Rev. E) 2013年 4月 11日
白皮书 常见 LED 功能和 LED 驱动器设计注意事项 英语版 2020年 9月 21日
应用手册 Some Guidelines and Tips for the LED Driver Application 2019年 8月 14日
应用手册 Performing Accurate PFM Mode Efficiency Measurements (Rev. A) 2018年 12月 11日
应用手册 Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) 2017年 11月 29日
应用手册 Extending the Soft Start Time Without a Soft Start Pin (Rev. B) 2017年 6月 15日
应用手册 Analog Dimming with the TPS61181 2011年 11月 8日
EVM 用户指南 TPS61181EVM-259 / TPS61182EVM-259 (Rev. B) 2011年 5月 12日
应用手册 TPS61181 One-Cell Battery Application for Tablet PC Backlight 2010年 9月 9日
应用手册 优化具有内部补偿功能的 DC-DC 转换器的瞬态响应 最新英语版本 (Rev.B) 2008年 7月 15日

设计和开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

评估板

SN65DSI83Q1-EVM — MIPI® DSI 转 LVDS 桥接和 FlatLink™ 集成电路评估模块

SN65DSI83Q1EVM 是一款专为帮助客户在系统硬件中实施 SN65DSI83Q1 而打造的 PCB。此 EVM 包括支持 DSI 输入和 LVDS 输出信号的板载连接器。  这些连接器用于将 MIPI DPHY 兼容型 DSI 源和 LVDS 面板连接至 EVM。 
用户指南: PDF
TI.com 上无现货
评估板

SN65DSI85Q1-EVM — 双通道 MIPI® DSI 转双链路 FlatLink LVDS 桥接器评估模块

SN65DSI85Q1EVM 是一款专为帮助客户在系统硬件中实施 SN65DSI85Q1 而打造的 PCB。此 EVM 包括支持 DSI 输入和 LVDS 输出信号的板载连接器。这些连接器用于将 MIPI DPHY 兼容型 DSI 源和 LVDS 面板连接至 EVM。
用户指南: PDF
TI.com 上无现货
评估板

TPS61181EVM-259 — TPS61181EVM-259 评估模块

The TPS61181EVM-259 facilitates evaluation of the TPS61181 1.5 A White LED Driver for Notebooks. This IC provides a highly integrated solution for media size LCD backlight. The device has a built-in high efficiency boost regulator with integrated 1.5 A/40 V power MOSFET.

用户指南: PDF
TI.com 上无现货
评估板

WLEDEVM-260 — WLEDEVM-260 评估模块

The WLEDEVM-260 load board contains 8 white light emitting diode (WLED) banks/strings which contain either 10 or 12 WLEDs as selected by the odd numbered jumpers (JP1, JP3, etc.). It is used with the TPS61181EVM-259 or TPS61182EVM-259 Evaluation Module to demonstrate functionality of the (...)

TI.com 上无现货
模拟工具

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米6体育平台手机版_好二三四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，可缩短米6体育平台手机版_好二三四上市时间并降低开发成本。

在 PSpice for TI 设计和仿真工具中，您可以搜索 TI (...)
发送申请
封装 引脚 CAD 符号、封装和 3D 模型
WQFN (RTE) 16 Ultra Librarian
应遵守 TI 评估类商品的标准条款与条件。

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

视频