Datasheet Texas Instruments LM3402MRX/NOPB — 数据表

制造商	Texas Instruments
系列	LM3402
零件号	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

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PDF, 1.5 Mb, 修订版: F, 档案已发布: Oct 29, 2015

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价格

状态

Lifecycle Status	Active (Recommended for new designs)
Manufacture's Sample Availability	No

打包

Pin	8	8
Package Type	DDA	DDA
Industry STD Term	HSOIC	HSOIC
JEDEC Code	R-PDSO-G	R-PDSO-G
Package QTY	2500	2500
Carrier	LARGE T&R	LARGE T&R
Device Marking	L3402	MR
Width (mm)	3.9	3.9
Length (mm)	4.89	4.89
Thickness (mm)	1.48	1.48
Pitch (mm)	1.27	1.27
Max Height (mm)	1.7	1.7
Mechanical Data	下载	下载

参数化

Dimming Method	PWM
Input Voltage	DC/DC Type
Iout(Max)	0.5 A
Iq(Typ)	0.6 mA
Operating Temperature Range	-40 to 125 C
Package Group	SO PowerPAD
Package Size: mm2:W x L	8SO PowerPAD: 29 mm2: 6 x 4.9(SO PowerPAD) PKG
Power Factor Correction	N/A Min
Rating	Catalog
Regulated Outputs	1
Special Features	Adjustable Switch Frequency,Enable/Shutdown,Integrated Switch,Thermal Shutdown
Switching Frequency(Max)	1000 kHz
Switching Frequency(Min)	20 kHz
Topology	Buck
Type	Inductive
Vin(Max)	42 V
Vin(Min)	6 V
Vout(Max)	40 V
Vout(Min)	0.2 V
Vref	0.2 V

生态计划

RoHS

Compliant

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)
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Evaluation Modules & Boards: LM3404MREVAL
LM3402 LM3404 High Power PSOP-8 Evaluation board
Lifecycle Status: Active (Recommended for new designs)
- 下载
Evaluation Modules & Boards: LM3404FSTDIMEV
LM3404FSTDIMEV - Fast Dimming and True Constant LED Current Evaluation Board
Lifecycle Status: Active (Recommended for new designs)
- 下载

应用须知

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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
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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
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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
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Driving LEDs: To Cap or Not to Cap
PDF, 542 Kb, 档案已发布: Mar 21, 2007
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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

系列: LM3402 (6)

LM3402MM LM3402MM/NOPB LM3402MMX LM3402MMX/NOPB LM3402MR/NOPB LM3402MRX/NOPB

制造商分类

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