Datasheet Texas Instruments LM3421

ManufacturerTexas Instruments
SeriesLM3421
Datasheet Texas Instruments LM3421

N-Channel Controllers for Constant Current LED Drivers

Datasheets

LM342x/-Q1 N-Channel Controllers for Constant-Current LED Drivers datasheet
PDF, 2.5 Mb, Revision: F, File published: Nov 4, 2014
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Prices

Status

LM3421MH/NOPBLM3421MHX/NOPB
Lifecycle StatusActive (Recommended for new designs)Active (Recommended for new designs)
Manufacture's Sample AvailabilityNoYes

Packaging

LM3421MH/NOPBLM3421MHX/NOPB
N12
Pin1616
Package TypePWPPWP
Industry STD TermHTSSOPHTSSOP
JEDEC CodeR-PDSO-GR-PDSO-G
Package QTY922500
CarrierTUBELARGE T&R
Device MarkingLM3421LM3421
Width (mm)4.44.4
Length (mm)55
Thickness (mm)11
Pitch (mm).65.65
Max Height (mm)1.21.2
Mechanical DataDownloadDownload

Parametrics

Parameters / ModelsLM3421MH/NOPB
LM3421MH/NOPB
LM3421MHX/NOPB
LM3421MHX/NOPB
Dimming MethodAnalog,PWMAnalog,PWM
Input Voltage, TypeDC/DCDC/DC
Iout(Max), A55
Iq(Typ), mA22
Operating Temperature Range, C-40 to 125-40 to 125
Package GroupHTSSOPHTSSOP
Package Size: mm2:W x L, PKG16HTSSOP: 22 mm2: 4.4 x 5(HTSSOP)16HTSSOP: 22 mm2: 4.4 x 5(HTSSOP)
Power Factor Correction, MinN/AN/A
RatingCatalogCatalog
Regulated Outputs11
Special FeaturesAdjustable Switch Frequency,Enable/Shutdown,Thermal ShutdownAdjustable Switch Frequency,Enable/Shutdown,Thermal Shutdown
Switching Frequency(Max), kHz20002000
Switching Frequency(Min), kHz100100
TopologyBoost,Boost Controller,Buck-Boost,SepicBoost,Boost Controller,Buck-Boost,Sepic
TypeController,InductiveController,Inductive
Vin(Max), V7575
Vin(Min), V4.54.5
Vout(Max), V7272
Vout(Min), V33
Vref, V1.241.24

Eco Plan

LM3421MH/NOPBLM3421MHX/NOPB
RoHSCompliantCompliant

Application Notes

  • 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

Series: LM3421 (2)

Manufacturer's Classification

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