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LM3401

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用于高功率 LED 驱动器的迟滞 PFET 控制器

产品详情

Input voltage type DC/DC Topology Buck Vin (min) (V) 4.5 Vin (max) (V) 35 Vout (max) (V) 33 Vout (min) (V) 0.2 Iout (max) (A) 1 Iq (typ) (mA) 1.05 Features Adjustable Switch Frequency, Enable/Shutdown Operating temperature range (°C) -40 to 125 Dimming method PWM Number of channels 1 Rating Catalog
Input voltage type DC/DC Topology Buck Vin (min) (V) 4.5 Vin (max) (V) 35 Vout (max) (V) 33 Vout (min) (V) 0.2 Iout (max) (A) 1 Iq (typ) (mA) 1.05 Features Adjustable Switch Frequency, Enable/Shutdown Operating temperature range (°C) -40 to 125 Dimming method PWM Number of channels 1 Rating Catalog
VSSOP (DGK) 8 14.7 mm² 3 x 4.9
  • Hysteretic Control for Speed and Simplicity
  • Input Operating Range of 4.5V-35V
  • 1.5MHz Maximum Switching Frequency
  • Low 200mV Reference Voltage
  • Programmable Current Limit
  • High speed CMOS Compatible Enable/Dimming
  • Adjustable Hysteresis
  • Input UVLO
  • No output Capacitor Required
  • 8-pin VSSOP Package

All trademarks are the property of their respective owners.

  • Hysteretic Control for Speed and Simplicity
  • Input Operating Range of 4.5V-35V
  • 1.5MHz Maximum Switching Frequency
  • Low 200mV Reference Voltage
  • Programmable Current Limit
  • High speed CMOS Compatible Enable/Dimming
  • Adjustable Hysteresis
  • Input UVLO
  • No output Capacitor Required
  • 8-pin VSSOP Package

All trademarks are the property of their respective owners.

The LM3401 is a switching controller designed to provide constant current to high power LEDs. The LM3401 drives an external P-MOSFET switch for step-down (Buck) regulators. The LM3401 delivers constant current within ±6% accuracy to a wide variety and number of series connected LEDs. Output current is adjusted with an external current sensing resistor to drive high power LEDs in excess of 1A.

For improved accuracy and efficiency, the LM3401 features dual-side hysteresis, very low reference voltage, and short propagation delay. A cycle by cycle current limit provides protection against over current and short circuit failures. Additional features include adjustable hysteresis and a CMOS compatible input pin for PWM dimming.

The LM3401 is a switching controller designed to provide constant current to high power LEDs. The LM3401 drives an external P-MOSFET switch for step-down (Buck) regulators. The LM3401 delivers constant current within ±6% accuracy to a wide variety and number of series connected LEDs. Output current is adjusted with an external current sensing resistor to drive high power LEDs in excess of 1A.

For improved accuracy and efficiency, the LM3401 features dual-side hysteresis, very low reference voltage, and short propagation delay. A cycle by cycle current limit provides protection against over current and short circuit failures. Additional features include adjustable hysteresis and a CMOS compatible input pin for PWM dimming.

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类型 标题 下载最新的英语版本 日期
* 数据表 LM3401 Hysteretic PFET Controller for High Power LED Drive 数据表 (Rev. C) 2013年 5月 2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 AN-1656 Design Challenges of Switching LED Drivers (Rev. A) 2013年 5月 3日
EVM 用户指南 AN-1657 LM3401 Demo Board (Rev. C) 2013年 5月 1日
应用手册 AN-1982 Small, Wide Input Voltage Range LM2842 Keeps LEDs Cool (Rev. A) 2013年 4月 23日
更多文献资料 LED 照明 灯泡替代及筒灯照明解决方案 2013年 3月 28日
用户指南 LM3401 MR16 Reference Design for Non-Dimming & Dimming LED Application Usr Guide 2012年 1月 27日
应用手册 Application Note 1657 LM3401 Demo Board (cn) 2008年 7月 29日
应用手册 Application Note 1656 Design Challenges of Switching LED Drivers (cn) 最新英语版本 (Rev.A) 2007年 10月 18日

设计和开发

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评估板

LM3401-MR16DEMO — 用于不可调光和可调光 LED 应用的 LM3401 MR16 灯泡参考设计

This reference design was based on the released LM3401 evaluation board and associated application note AN-1657. The circuit and BOM was modified to optimize performance in MR16 solutions. A PCB was created that fits into the MR16 cavity. For fast bench set-up, the LM3401 evaluation board can be (...)

用户指南: PDF
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评估板

LM3401EVAL — 用于高功率 LED 驱动的 LM3401 滞后 PFET 控制器评估模块

The LM3401 is a switching buck regulator derived current source designed to drive a series string of high power, high brightness LEDs. The LM3401 controls an external P-FET, allowing the user to select a power device for the desired level of forward LED current. The LM3401 demo board can supply (...)

用户指南: PDF
TI.com 上无现货
仿真模型

LM3401 PSpice Transient Model

SNVM694.ZIP (57 KB) - PSpice Model
仿真模型

LM3401 TINA-TI Transient Reference Design

SNVMBE7.TSC (2048 KB) - TINA-TI Reference Design
仿真模型

LM3401 TINA-TI Transient Spice Model

SNVMBE6.ZIP (17 KB) - TINA-TI Spice Model
计算工具

LED-CIE1931-COLOR-CALCULATOR Accurately Plot LED Colour from a Power Spectrum (Excel)

Excel spreadsheet outlining LED color calculations performed in the article Accurately Plot LED Colour from a Power Spectrum by Donald Schelle. Includes calculations to plot LED color on a CIE 1931 xyY chart from its LED power spectrum.

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产品
照明 LED 驱动器
LM3401 用于高功率 LED 驱动器的迟滞 PFET 控制器
计算工具

LM3401DESIGN-CALC — LM3401 组件计算器

模拟工具

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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。

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封装 引脚 CAD 符号、封装和 3D 模型
VSSOP (DGK) 8 Ultra Librarian

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

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