Datasheet Texas Instruments LM3431-Q1

ManufacturerTexas Instruments
SeriesLM3431-Q1
Datasheet Texas Instruments LM3431-Q1

3-Channel Constant Current LED Driver with Integrated Boost Controller

Datasheets

LM3431/31A/31Q/31AQ 3-Chan Constant Current LED Driver w/Integrated Boost Cntr datasheet
PDF, 1.9 Mb, Revision: G, File published: May 2, 2013
Extract from the document

Prices

Status

LM3431AQMH/NOPBLM3431AQMHX/NOPBLM3431QMH/NOPBLM3431QMHX/NOPB
Lifecycle StatusActive (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)Active (Recommended for new designs)
Manufacture's Sample AvailabilityYesNoYesNo

Packaging

LM3431AQMH/NOPBLM3431AQMHX/NOPBLM3431QMH/NOPBLM3431QMHX/NOPB
N1234
Pin28282828
Package TypePWPPWPPWPPWP
Industry STD TermHTSSOPHTSSOPHTSSOPHTSSOP
JEDEC CodeR-PDSO-GR-PDSO-GR-PDSO-GR-PDSO-G
Package QTY482500482500
CarrierTUBELARGE T&RTUBELARGE T&R
Device MarkingLM3431AQMHQMHQMH
Width (mm)4.44.44.44.4
Length (mm)9.79.79.79.7
Thickness (mm)1111
Pitch (mm).65.65.65.65
Max Height (mm)1.21.21.21.2
Mechanical DataDownloadDownloadDownloadDownload

Parametrics

Parameters / ModelsLM3431AQMH/NOPB
LM3431AQMH/NOPB
LM3431AQMHX/NOPB
LM3431AQMHX/NOPB
LM3431QMH/NOPB
LM3431QMH/NOPB
LM3431QMHX/NOPB
LM3431QMHX/NOPB
ApplicationsBacklight,Stop/Tail,TurnBacklight,Stop/Tail,TurnBacklight,Stop/Tail,TurnBacklight,Stop/Tail,Turn
Number of Channels3333
Iout(Max), A0.60.60.60.6
Iq(Typ), mA4444
LED Current Per Channel, mA200200200200
Operating Temperature Range, C-40 to 125-40 to 125-40 to 125-40 to 125
Package GroupHTSSOPHTSSOPHTSSOPHTSSOP
Package Size: mm2:W x L, PKG28HTSSOP: 62 mm2: 6.4 x 9.7(HTSSOP)28HTSSOP: 62 mm2: 6.4 x 9.7(HTSSOP)28HTSSOP: 62 mm2: 6.4 x 9.7(HTSSOP)28HTSSOP: 62 mm2: 6.4 x 9.7(HTSSOP)
RatingAutomotiveAutomotiveAutomotiveAutomotive
Special FeaturesAdjustable Switch Frequency,Enable/Shutdown,Soft Start,Thermal ShutdownAdjustable Switch Frequency,Enable/Shutdown,Soft Start,Thermal ShutdownAdjustable Switch Frequency,Enable/Shutdown,Soft Start,Thermal ShutdownAdjustable Switch Frequency,Enable/Shutdown,Soft Start,Thermal Shutdown
Switching Frequency(Max), kHz1000100010001000
Switching Frequency(Min), kHz200200200200
TopologyBoost with Current SinkBoost with Current SinkBoost with Current SinkBoost with Current Sink
Vin(Max), V36363636
Vin(Min), V4.54.54.54.5
Vout(Max), V40404040
Vout(Min), V5.55.55.55.5

Eco Plan

LM3431AQMH/NOPBLM3431AQMHX/NOPBLM3431QMH/NOPBLM3431QMHX/NOPB
RoHSCompliantCompliantCompliantCompliant

Application Notes

  • 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> Automotive LED Driver