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TPS61183 具有 PWM 接口和可编程 PWM 明暗调节的、用于笔记本电脑的 WLED 驱动器

TPS61183 描述

The TPS61183 IC provides a highly integrated WLED driver solution for notebook LCD backlight. This device has a built-in high efficiency boost regulator with integrated 2.0A/40V power MOSFET. The six current sink regulators provide high precision current regulation and matching. In total, the device can support up to 60 WLEDs. In addition, the boost output automatically adjusts its voltage to the WLED forward voltage to optimize efficiency. The TPS61183 supports the programmable brightness dimming method. In this configuration, the dimming duty cycle of the WLED current is controlled by the input PWM signal but the dimming frequency is fixed and set by an external resistor. During direct PWM dimming, the WLED current completely synchronized with the input PWM signal’s duty cycle and frequency

TPS61183
Topology Boost
Type Inductive
Vin(Min)(V) 4.5
Vin(Max)(V) 24
Switch Current Limit(Typ)(A) 2.5
Output Voltage(Max)(V) 38
Switching Frequency(Max)(kHz) 1200
LED(#) 60
LED Configuration Series
Over-Voltage Protection(Min)(V) 38
Peak Efficiency(%) 94
Operating Temperature Range(°C) -40 to 85
Pin/Package 20QFN
TPS61183 特性
TPS61183 芯片订购指南
器件 状态 温度 价格(美元) 封装 | 引脚 封装数量 | 封装载体 丝印标记
TPS61183RTJR ACTIVE -40 to 85 1.85 | 1ku QFN (RTJ) | 20 3000 | LARGE T&R  
TPS61183RTJT ACTIVE -40 to 85 2.25 | 1ku QFN (RTJ) | 20 250 | SMALL T&R  
TPS61183 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
TPS61183RTJR Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPS61183RTJR TPS61183RTJR
TPS61183RTJT Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR TPS61183RTJT TPS61183RTJT
TPS61183 应用技术支持与电子电路设计开发资源下载
  1. TPS61183 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)
TPS61183 相关工具
名称 型号 公司 工具/软件类型
TPS61183 评估模块 TPS61183EVM Texas Instruments 开发电路板/EVM
TPS61183 评估模块 TPS61183EVM-259 Texas Instruments 开发电路板/EVM
用于 TPS61183 IC 的评估模块 TPS61183EVM-528 Texas Instruments 开发电路板/EVM