TI,TI公司,TI代理商
TI(德州仪器)| TI产品型号搜索
专营TI元器件,强大的现货交付能力,解决您的采购难题
全流程提供TI现货供应链服务
当前位置:TI公司 > > TI芯片 >> LP8555
LP8555技术文档下载:
LP8555技术文档产品手册下载
LP8555 - 产品图解:
LP8555-用于平板电脑 PCS 的 LP8555 高效率 LED 背光驱动器
LP8555-背光-LED驱动器-电源管理
LP8555-LP8555 High-Efficiency LED Backlight Driver for Tablet PCs
承诺原装正品
专营TI,真正优化您的供应链
TI产品 - LP8555介绍
LP8555 - 用于平板电脑 PCS 的 LP8555 高效率 LED 背光驱动器

LP8555是TI公司的一款背光产品,LP8555是用于平板电脑 PCS 的 LP8555 高效率 LED 背光驱动器,本页介绍了LP8555的产品说明、应用、特性等,并给出了与LP8555相关的TI元器件型号供参考。

LP8555 - 用于平板电脑 PCS 的 LP8555 高效率 LED 背光驱动器 - 背光 - LED驱动器 - TI公司(Texas Instruments,德州仪器)

产品特性
  • Dual High-Efficiency DC/DC Boost Converters
  • 2.7-V to 20-V VDD Range
  • 12 50-mA High-Precision LED Current Sinks With 12-Bit Brightness Control
  • Adaptive LED Current Sink Headroom Controls for Maximum System Efficiency
  • LED String Count Auto-Detection
  • Phase-Shifted PWM Mode for Reduced Audible Noise
  • PWM Input Duty-Cycle and/or I2C-Register Brightness Control
  • Hybrid PWM and Current Dimming for Higher LED Drive Optical Efficiency
  • Flexible CABC Support
  • EPROM, I2C-Register, or External Resistors for Configuration
  • Improved Boost EMI Performance with Slew-Rate Control, Spread Spectrum, and Phase-Shifted Switching
  • Extensive Fault Detection Schemes
产品应用
  • Tablet LCD Display LED Backlight
产品说明

The LP8555 is a high efficiency LED driver with integrated dual DC-DC boost converters. It has 12 high-precision current sinks that can be controlled by a PWM input signal, an I2C master, or both.

Dual-boost configuration of LP8555 shares the load to two inductors and allows thinner overall solution size and better efficiency compared to single-boost solutions. 12 LED strings allows driving high number of LEDs with optimal efficiency since boost conversion ratio can be kept low.

The boost converter has adaptive output voltage control based on the LED current sink headroom voltages. This feature minimizes the power consumption by adjusting the voltage to lowest sufficient level in all conditions.

The LED string auto-detect function enables use of the same device in systems with 2 to 12 LED strings for the maximum design flexibility. Proprietary Hybrid PWM and Current dimming mode enables additional system power savings. Phase-shift PWM allows reduced audible noise and smaller boost output capacitors. Flexible CABC support combines brightness level selections based on the PWM input and I2C commands.

Device Information
ORDER NUMBERPACKAGEBODY SIZE
LP8555YFQRDSBGA (36)2,478mm x 2,478mm
下面可能是您感兴趣的TI公司背光元器件
  • CDC341 - 具有严格 AC 规范的 1 到 8 时钟驱动器
  • TPL5010 - TPL5010 具有看门狗功能和手动复位的超低功耗系统定时器
  • CD74ACT74 - 具有设置和复位功能的双路上升沿 D 类触发器
  • TPS61040-Q1 - 汽车类低功耗 400mA DC/DC 升压转换器
  • TPS57140-Q1 - 具有 Eco-Mode? 的汽车类 3.5V 至 42V 输入、1.5 A 降压 SWIFT? 转换器
  • SN65HVD77 - 3.3V 电源 RS-485
  • TPS92661-Q1 - 用于汽车前灯系统的高亮度 LED 矩阵管理器
  • SN74LVC2G04-EP - 增强型产品双路反向器门
  • PTN78020H - 6 A、宽输入、非隔离、宽输出调节模块
  • SN74LVTH18646A - 具有 18 位收发器和寄存器的 3.3V ABT 扫描测试设备
  • 节约时间成本,提高采购效率,TI官网授权代理
    TI公司|TI德州仪器|德州仪器TI公司代理商|TI芯片代理商
    TI公司产品现货专家,订购TI公司产品不限最低起订量,TI产品大陆现货即时发货,香港库存3-5天发货,海外库存7-10天发货
    寻找全球TI代理商现货货源 - TI公司(德州仪器)电子元件在线订购