Datasheet Texas Instruments LM3402

ManufacturerTexas Instruments
SeriesLM3402
Datasheet Texas Instruments LM3402

0.5A Constant Current Buck Regulator for High Power LED Drivers

Datasheets

LM3402/HV 0.5-A Constant Current Buck Regulator for Driving High Power LEDs datasheet
PDF, 1.5 Mb, Revision: F, File published: Oct 29, 2015
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Prices

Status

LM3402MMLM3402MM/NOPBLM3402MMXLM3402MMX/NOPBLM3402MR/NOPBLM3402MRX/NOPB
Lifecycle StatusObsolete (Manufacturer has discontinued the production of the device)Active (Recommended for new designs)Obsolete (Manufacturer has discontinued the production of the device)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)
Manufacture's Sample AvailabilityNoNoYesNoNoYes

Packaging

LM3402MMLM3402MM/NOPBLM3402MMXLM3402MMX/NOPBLM3402MR/NOPBLM3402MRX/NOPB
N123456
Pin888888
Package TypeDGKDGKDGKDGKDDADDA
Industry STD TermVSSOPVSSOPVSSOPVSSOPHSOICHSOIC
JEDEC CodeR-PDSO-GR-PDSO-GR-PDSO-GR-PDSO-GR-PDSO-GR-PDSO-G
Device MarkingSNEBSNEBSNEBSNEBMRL3402
Width (mm)33333.93.9
Length (mm)33334.894.89
Thickness (mm).97.97.97.971.481.48
Pitch (mm).65.65.65.651.271.27
Max Height (mm)1.071.071.071.071.71.7
Mechanical DataDownloadDownloadDownloadDownloadDownloadDownload
Package QTY10003500952500
CarrierLARGE T&RLARGE T&RTUBELARGE T&R

Parametrics

Parameters / ModelsLM3402MM
LM3402MM
LM3402MM/NOPB
LM3402MM/NOPB
LM3402MMX
LM3402MMX
LM3402MMX/NOPB
LM3402MMX/NOPB
LM3402MR/NOPB
LM3402MR/NOPB
LM3402MRX/NOPB
LM3402MRX/NOPB
Approx. Price (US$)0.62 | 1ku0.62 | 1ku
Dimming MethodPWMPWMPWMPWMPWMPWM
Input Voltage, TypeDC/DCDC/DCDC/DCDC/DC
Input Voltage(Type)DC/DCDC/DC
Iout(Max), A0.50.50.50.5
Iout(Max)(A)0.50.5
Iq(Typ), mA0.60.60.60.6
Iq(Typ)(mA)0.60.6
Operating Temperature Range, C-40 to 125-40 to 125-40 to 125-40 to 125
Operating Temperature Range(C)-40 to 125-40 to 125
Package GroupVSSOPVSSOPVSSOPVSSOPSO PowerPADSO PowerPAD
Package Size: mm2:W x L, PKG8VSSOP: 15 mm2: 4.9 x 3(VSSOP)8VSSOP: 15 mm2: 4.9 x 3(VSSOP)8SO PowerPAD: 29 mm2: 6 x 4.9(SO PowerPAD)8SO PowerPAD: 29 mm2: 6 x 4.9(SO PowerPAD)
Package Size: mm2:W x L (PKG)8VSSOP: 15 mm2: 4.9 x 3(VSSOP)8VSSOP: 15 mm2: 4.9 x 3(VSSOP)
Power Factor Correction, MinN/AN/AN/AN/A
Power Factor Correction(Min)N/AN/A
RatingCatalogCatalogCatalogCatalogCatalogCatalog
Regulated Outputs1111
Regulated Outputs(#)11
Special FeaturesAdjustable Switch Frequency
Enable/Shutdown
Integrated Switch
Thermal Shutdown
Adjustable Switch Frequency,Enable/Shutdown,Integrated Switch,Thermal ShutdownAdjustable Switch Frequency
Enable/Shutdown
Integrated Switch
Thermal Shutdown
Adjustable Switch Frequency,Enable/Shutdown,Integrated Switch,Thermal ShutdownAdjustable Switch Frequency,Enable/Shutdown,Integrated Switch,Thermal ShutdownAdjustable Switch Frequency,Enable/Shutdown,Integrated Switch,Thermal Shutdown
Switching Frequency(Max), kHz1000100010001000
Switching Frequency(Max)(kHz)10001000
Switching Frequency(Min), kHz20202020
Switching Frequency(Min)(kHz)2020
TopologyBuckBuckBuckBuckBuckBuck
TypeInductiveInductiveInductiveInductiveInductiveInductive
Vin(Max), V42424242
Vin(Max)(V)4242
Vin(Min), V6666
Vin(Min)(V)66
Vout(Max), V40404040
Vout(Max)(V)4040
Vout(Min), V0.20.20.20.2
Vout(Min)(V)0.20.2
Vref, V0.20.20.20.2
Vref(V)0.20.2

Eco Plan

LM3402MMLM3402MM/NOPBLM3402MMXLM3402MMX/NOPBLM3402MR/NOPBLM3402MRX/NOPB
RoHSNot CompliantCompliantNot CompliantCompliantCompliantCompliant
Pb FreeNoNo

Application Notes

  • Thermal Performance of the LM3404/04HV in SO-8 and PSOP-8 Packages (Rev. A)
    PDF, 146 Kb, Revision: A, File published: 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, Revision: A, File published: 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
  • Driving LEDs: To Cap or Not to Cap
    PDF, 542 Kb, File published: Mar 21, 2007
  • AN-1982 Small, Wide Input Voltage Range LM2842 Keeps LEDs Cool (Rev. A)
    PDF, 60 Kb, Revision: A, File published: 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
  • AN-1656 Design Challenges of Switching LED Drivers (Rev. A)
    PDF, 171 Kb, Revision: A, File published: 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

Model Line

Manufacturer's Classification

  • Semiconductors> Power Management> LED Driver> LED Lighting - Illumination