产品详细信息

Input voltage (type) DC/DC Topology Buck Vin (Min) (V) 4.5 Vin (Max) (V) 35 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
Input voltage (type) DC/DC Topology Buck Vin (Min) (V) 4.5 Vin (Max) (V) 35 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
VSSOP (DGK) 8 15 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.

下载

您可能感兴趣的相似产品

open-in-new 比较产品
功能与比较器件相同但引脚有所不同。
LM3409 正在供货 用于高功率 LED 驱动器的 42V PFET 降压控制器 This product is a controlled off-time PFET buck controller for high power LED drivers.

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

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 (...)

TI.com 無法提供
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 (...)

TI.com 無法提供
仿真模型

LM3401 PSpice Transient Model

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

LM3401 TINA-TI Transient Spice Model

SNVMBE6.ZIP (17 KB) - TINA-TI Spice Model
仿真模型

LM3401 TINA-TI Transient Reference Design

SNVMBE7.TSC (2048 KB) - TINA-TI 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。

在 PSpice for TI 设计和仿真工具中,您可以搜索 TI (...)
计算工具

LED-CIE1931-COLOR-CALCULATOR — 根据功率频谱准确绘制 LED 颜色 - 文章资源

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.
计算工具

LM3401DESIGN-CALC — LM3401 组件计算器

封装 引脚数 下载
VSSOP (DGK) 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

推荐产品可能包含与 TI 此产品相关的参数、评估模块或参考设计。

支持与培训

视频