产品详细信息

Input voltage (type) DC/DC Topology Buck Vin (Min) (V) 6 Vin (Max) (V) 42 Iout (Max) (A) 1 Iq (Typ) (mA) 0.625 Features Adjustable Switch Frequency, Enable/Shutdown, Integrated Switch, Thermal Shutdown Operating temperature range (C) -40 to 125 Dimming method PWM
Input voltage (type) DC/DC Topology Buck Vin (Min) (V) 6 Vin (Max) (V) 42 Iout (Max) (A) 1 Iq (Typ) (mA) 0.625 Features Adjustable Switch Frequency, Enable/Shutdown, Integrated Switch, Thermal Shutdown Operating temperature range (C) -40 to 125 Dimming method PWM
HSOIC (DDA) 8 19 mm² 4.9 x 3.9 SOIC (D) 8 19 mm² 4.9 x 3.9
  • Integrated 1-A MOSFET
  • VIN Range 6 V to 42 V (LM3404)
  • VIN Range 6 V to 75 V (LM3404HV)
  • 1.2-A Output Current Overtemperature
  • Cycle-by-Cycle Current Limit
  • No Control Loop Compensation Required
  • Separate PWM Dimming and Low Power
    Shutdown
  • Supports All-Ceramic Output Capacitors and
    Capacitor-lessOutputs
  • Thermal Shutdown Protection
  • SOIC-8 Package, SO PowerPAD™-8 Package
  • Integrated 1-A MOSFET
  • VIN Range 6 V to 42 V (LM3404)
  • VIN Range 6 V to 75 V (LM3404HV)
  • 1.2-A Output Current Overtemperature
  • Cycle-by-Cycle Current Limit
  • No Control Loop Compensation Required
  • Separate PWM Dimming and Low Power
    Shutdown
  • Supports All-Ceramic Output Capacitors and
    Capacitor-lessOutputs
  • Thermal Shutdown Protection
  • SOIC-8 Package, SO PowerPAD™-8 Package

The LM3404 and LM3404HV devices are monolithic switching regulators designed to deliver constant currents to high power LEDs. Ideal for automotive, industrial, and general lighting applications, these devices contain a high-side N-channel MOSFET switch with a current limit of 1.5-A (typical) for step-down (Buck) regulators. Hysteretic controlled on-time and an external resistor allow the converter output voltage to adjust as needed to deliver a constant current to series and series-parallel connected LED arrays of varying number and type. Some features are: LED dimming using pulse width modulation (PWM), broken or open LED protection, low-power shutdown, and thermal shutdown.

The LM3404 and LM3404HV devices are monolithic switching regulators designed to deliver constant currents to high power LEDs. Ideal for automotive, industrial, and general lighting applications, these devices contain a high-side N-channel MOSFET switch with a current limit of 1.5-A (typical) for step-down (Buck) regulators. Hysteretic controlled on-time and an external resistor allow the converter output voltage to adjust as needed to deliver a constant current to series and series-parallel connected LED arrays of varying number and type. Some features are: LED dimming using pulse width modulation (PWM), broken or open LED protection, low-power shutdown, and thermal shutdown.

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TPS92515 正在供货 具有集成 NFET、高侧电流感应和分流 PWM 调光功能的 42V 2A LED 驱动器 This product is an integrated NFET controlled off-time buck LED driver with power-up output current calibration. It supports input voltage up to 42 V.

技术文档

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类型 项目标题 下载最新的英语版本 日期
* 数据表 LM3404xx 1-A Constant Current Buck Regulator for Driving High Power LEDs 数据表 (Rev. G) PDF | HTML 29 Sep 2015
白皮书 常见 LED 功能和 LED 驱动器设计注意事项 下载英文版本 21 Sep 2020
选择指南 电源管理指南 2018 (Rev. K) 31 Jul 2018
选择指南 电源管理指南 2018 (Rev. R) 25 Jun 2018
技术文章 Color the world with what’s next in RGBW LED light source technology – part 1 03 Aug 2017
技术文章 Here's how body electronics and lighting technology are changing the driving experience 26 Sep 2016
技术文章 LED brightness adjustment: high-frequency PWM dimming 26 Aug 2016
技术文章 Take better selfies with innovative LED flashes 18 Nov 2014
应用手册 AN-1656 Design Challenges of Switching LED Drivers (Rev. A) 03 May 2013
EVM 用户指南 AN-1545 LM3404/LM3404HV Evaluation Board (Rev. E) 01 May 2013
EVM 用户指南 AN-1585 LM3402 and LM3404 High Power PSOP-8 Evaluation Board (Rev. C) 01 May 2013
应用手册 AN-1853 COT Drivers Control LED Ripple Current (Rev. A) 01 May 2013
用户指南 LM3402/LM3404 Fast Dimming and True Constant LED Current Evaluation Board (Rev. E) 01 May 2013
应用手册 Thermal Performance of the LM3404/04HV in SO-8 and PSOP-8 Packages (Rev. A) 01 May 2013
应用手册 AN-1982 Small, Wide Input Voltage Range LM2842 Keeps LEDs Cool (Rev. A) 23 Apr 2013
用户指南 LM3404 Driving a Seoul Semi Zpower P4 1A LED User Guide 27 Jan 2012
应用手册 Application Note 1545 LM3404/LM3404HV Evaluation Board (cn) 14 Aug 2009
应用手册 LM3402/LM3404 Fast Dimming and True Constant LED Current Evaluation Board (cn) 10 Dec 2008
应用手册 Application Note 1656 Design Challenges of Switching LED Drivers (cn) 下载最新的英文版本 (Rev.A) 18 Oct 2007
应用手册 Thermal Performance of the LM3404/04HV in SO-8 and PSOP-8 Packages (cn) 下载最新的英文版本 (Rev.A) 31 May 2007

设计和开发

如需其他信息或资源,请查看下方列表,点击标题即可进入详情页面。

评估板

LM3404EVAL — LM3404MA(采用 SOIC 封装)- 用于 HB LED 的 1A 恒流降压稳压器(LM3404 评估板)

The LM3404/04HV is a buck regulator derived controlled current source designed to drive a series string of high power, high brightness LEDs (HBLEDs) such as the Luxeon™ K2 Emitter at forward currents of up to 1.0A. The board can accept an input voltage ranging from 6V to 42V when using the LM3404. (...)

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评估板

LM3404FSTDIMEV — LM3404FSTDIMEV - 快速调光和真正恒流 LED 驱动器评估板

The LM3404/04HV are buck regulator derived controlled current sources designed to drive a series string of high power, high brightness LEDs (HBLEDs) at forward currents of up to 1.0A (LM3404/04HV). This evaluation board demonstrates the enhanced thermal performance, fast dimming and true constant (...)

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评估板

LM3404MREVAL — LM3402 LM3404 高功耗 PSOP-8 评估板

The LM3402/02HV and LM3404/04HV are buck regulator derived controlled current sources designed to drive a series string of high power, high brightness LEDs (HBLEDs) such as the Luxeon™ K2 Emitter at forward currents of up to 0.5A (LM3402/02HV) or 1.0A (LM3404/04HV). This evaluation board (...)

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仿真模型

LM3404 PSpice Transient Model LM3404 PSpice Transient Model

仿真模型

LM3404 TINA-TI Transient Spice Model LM3404 TINA-TI Transient Spice Model

仿真模型

LM3404 TINA-TI Transient Reference Design LM3404 TINA-TI Transient Reference Design

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产品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,可缩短产品上市时间并降低开发成本。

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CAD/CAE 符号

LM3404 Driving a Seoul Semi Zpower P4 1A LED CAD File LM3404 Driving a Seoul Semi Zpower P4 1A LED CAD File

封装 引脚数 下载
SO PowerPAD (DDA) 8 了解详情
SOIC (D) 8 了解详情

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
  • 认证摘要
  • 持续可靠性监测

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