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LT3743IUFD#PBF

  • 描述:种类: 直流-直流控制器 最小电源电压: 36伏 最大电源电压: 6V 供应商设备包装: 28-QFN(4x5) 安装类别: 表面安装
  • 品牌: 模拟器件公司 (Analog)
  • 交期:5-7 工作日
渠道:
  • 自营
  • 得捷
  • 贸泽

起订量: 1

  • 库存: 239
  • 单价: ¥96.25814
  • 数量:
    - +
  • 总计: ¥96.26
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规格参数

  • 部件状态 可供货
  • 输出数量 one
  • 输出电压 -
  • 安装类别 表面安装
  • 内部开关
  • 输出电流 / 通道 -
  • 拓扑结构 降压(降压)
  • 最大电源电压 6V
  • 亮度控制 PWM
  • 包装/外壳 28-WFQFN外露焊盘
  • 种类 直流-直流控制器
  • 工作温度 -40摄氏度~125摄氏度(TJ)
  • 最小电源电压 36伏
  • 应用及使用 照明系统
  • 制造厂商 模拟器件公司 (Analog)
  • 频率 200千赫兹 ~ 1MHz
  • 供应商设备包装 28-QFN(4x5)

LT3743IUFD#PBF 产品详情

The LT3743IUFD is a fixed frequency synchronous step-down DC/DC controller designed to drive high current LEDs. The average current mode controller will maintain inductor current regulation over a wide output voltage range of 0V to (VIN – 2V). LED dimming is achieved through analog dimming on the CTRL_L, CTRL_H and CTRL_T pins and with PWM dimming on the PWM and CTRL_SEL pins. Through the use of externally switched load capacitors, the LT3743IUFD is capable of changing regulated LED current levels within several μs, providing accurate, high speed PWM dimming between two current levels. The switching frequency is programmable from 200kHz to 1MHz through an external resistor on the RT pin.

Additional features include voltage regulation and overvoltage protection set with a voltage divider from the output to the FB pin. Overcurrent protection is provided and set by the CTRL_H pin.

Feature

  • PWM Dimming Provides Up to 3000:1 Dimming Ratio
  • CTRL_SEL Dimming Provides Up to 3000:1 Dimming Ratio Between Any Current
  • Three-State Current Control for Color Mixing
  • ±6% Current Regulation Accuracy
  • 6V to 36V Input Voltage Range
  • Average Current Mode Control
  • 2μs Maximum Recovery Time Between Any Current Regulation State
  • <1μA Shutdown Current
  • Output Voltage Regulation and Open-LED Protection
  • Thermally Enhanced 4mm × 5mm QFN and 28-Pin FE Package

Applications

  • DLP Projectors
  • High Power Architectural Lighting
  • Laser Diodes


(Picture: Pinout)


LT3743IUFD#PBF所属分类:LED 驱动器,LT3743IUFD#PBF 由 模拟器件公司 (Analog) 设计生产,可通过久芯网进行购买。LT3743IUFD#PBF价格参考¥96.258141,你可以下载 LT3743IUFD#PBF中文资料、PDF数据手册、Datasheet数据手册功能说明书,可查询LT3743IUFD#PBF规格参数、现货库存、封装信息等信息!

模拟器件公司 (Analog)

模拟器件公司 (Analog)

模拟设备公司(NASDAQ:ADI)在设计、制造和营销几乎所有类型的电子设备中使用的高性能模拟、混合信号和数字信号处理(DSP)集成电路(IC)的广泛组合方面处于世界领先地位。自1965年成立以来,他们...

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