Datasheet Texas Instruments LM3402MRX/NOPB — 数据表

制造商Texas Instruments
系列LM3402
零件号LM3402MRX/NOPB
Datasheet Texas Instruments LM3402MRX/NOPB

用于大功率LED驱动器的0.5A恒定电流降压稳压器8-SO PowerPAD

数据表

LM3402/HV 0.5-A Constant Current Buck Regulator for Driving High Power LEDs datasheet
PDF, 1.5 Mb, 修订版: F, 档案已发布: Oct 29, 2015
从文件中提取

价格

状态

Lifecycle StatusActive (Recommended for new designs)
Manufacture's Sample AvailabilityNo

打包

Pin88
Package TypeDDADDA
Industry STD TermHSOICHSOIC
JEDEC CodeR-PDSO-GR-PDSO-G
Package QTY25002500
CarrierLARGE T&RLARGE T&R
Device MarkingL3402MR
Width (mm)3.93.9
Length (mm)4.894.89
Thickness (mm)1.481.48
Pitch (mm)1.271.27
Max Height (mm)1.71.7
Mechanical Data下载下载

参数化

Dimming MethodPWM
Input VoltageDC/DC Type
Iout(Max)0.5 A
Iq(Typ)0.6 mA
Operating Temperature Range-40 to 125 C
Package GroupSO PowerPAD
Package Size: mm2:W x L8SO PowerPAD: 29 mm2: 6 x 4.9(SO PowerPAD) PKG
Power Factor CorrectionN/A Min
RatingCatalog
Regulated Outputs1
Special FeaturesAdjustable Switch Frequency,Enable/Shutdown,Integrated Switch,Thermal Shutdown
Switching Frequency(Max)1000 kHz
Switching Frequency(Min)20 kHz
TopologyBuck
TypeInductive
Vin(Max)42 V
Vin(Min)6 V
Vout(Max)40 V
Vout(Min)0.2 V
Vref0.2 V

生态计划

RoHSCompliant

设计套件和评估模块

  • Evaluation Modules & Boards: LM3402EVAL
    LM3402MA (Mini SOIC) - 0.5A Constant Current Buck Regulator for HB LEDs (LM3402EVAL Board)
    Lifecycle Status: Active (Recommended for new designs)
  • Evaluation Modules & Boards: LM3404MREVAL
    LM3402 LM3404 High Power PSOP-8 Evaluation board
    Lifecycle Status: Active (Recommended for new designs)
  • Evaluation Modules & Boards: LM3404FSTDIMEV
    LM3404FSTDIMEV - Fast Dimming and True Constant LED Current Evaluation Board
    Lifecycle Status: Active (Recommended for new designs)

应用须知

  • Thermal Performance of the LM3404/04HV in SO-8 and PSOP-8 Packages (Rev. A)
    PDF, 146 Kb, 修订版: A, 档案已发布: May 1, 2013
    The LM3404/04HV is a buck-regulator designed for driving high powered LEDs at forward currents of upto 1.0A. LED drivers often experience thermal conditions that are extreme even by the standards ofswitching converters. For example, LED drivers are often placed on the same metal-core PCB (MCPCB)as the LEDs themselves. At 1.0A, a single-die white LED can dissipate more than 3W. The temperatur
  • AN-1853 COT Drivers Control LED Ripple Current (Rev. A)
    PDF, 76 Kb, 修订版: A, 档案已发布: May 1, 2013
    The constant on-time (COT) control method used by the LM3402 and LM3404 constant-current buckregulators provides a balance between control over switching frequency and fast transient response.Normally this "quasi-hysteretic" control senses the input voltage and adjusts the on-time tON of the powerMOSFET as needed to keep fSW constant. Investigating a little more deeply reveals that tON is in
  • AN-1982 Small, Wide Input Voltage Range LM2842 Keeps LEDs Cool (Rev. A)
    PDF, 60 Kb, 修订版: A, 档案已发布: Apr 23, 2013
    The world seems to be poised to make the leap to LED lighting. Incandescent has been deemed tooinefficient, which it is, and fluorescent lighting often does not achieve the lifetime it claims. Fluorescentalso has another set of baggage, dangerous chemicals. So the logical choice that most people believe cantake the crown is high brightness (HB) LEDs. HBLEDs are becoming more attractive as th
  • Driving LEDs: To Cap or Not to Cap
    PDF, 542 Kb, 档案已发布: Mar 21, 2007
  • AN-1656 Design Challenges of Switching LED Drivers (Rev. A)
    PDF, 171 Kb, 修订版: A, 档案已发布: May 3, 2013
    Using a switching regulator as an LED driver requires the designer to convert a voltage regulator into acurrent regulator. Beyond the challenge of changing the feedback system to control current, the LEDsthemselves present a load characteristic that is much different than the digital devices and other loads thatrequire constant voltage. The LED WEBENCHВ® online design environment predicts and

模型线

制造商分类

  • Semiconductors > Power Management > LED Driver > Illumination & General Lighting LED Driver