LM3404HV   
1.0A Constant Current Buck Regulator for High Power LED Drivers from the PowerWise® Family		 Click link to Download

Features
•Integrated 1.0A MOSFET
•VIN Range 6V to 42V (LM3404)
•VIN Range 6V to 75V (LM3404HV)
•1.2A Output Current Over Temperature
•Cycle-by-Cycle Current Limit
•No Control Loop Compensation Required
•Separate PWM Dimming and Low Power Shutdown
•Supports all-ceramic output capacitors and capacitor-less outputs
•Thermal shutdown protection
•SO-8 Package, PSOP-8 Package

Description

The LM3404/04HV are monolithic switching regulators designed to deliver constant currents to high power LEDs. Ideal for automotive, industrial, and general lighting applications, they contain a high-side N-channel MOSFET switch with a current limit of 1.5A (typical) for step-down (Buck) regulators. Hysteretic controlled on-time and an external resistor allow the converter output voltage to adjust as needed to deliver a constant current to series and series-parallel connected LED arrays of varying number and type. LED dimming via pulse width modulation (PWM), broken/open LED protection, low-power shutdown and thermal shutdown complete the feature set.

Applications
•LED Driver
•Constant Current Source
•Automotive Lighting
•General Illumination
•Industrial Lighting
WEBENCH Power Designer My Designs

LM3404HV
 
6.00 <=		 V in Lower
 V		  
<=		 V in Upper
 V		  
<= 75.00
Ambient Temperature  °C <= 100


What are WEBENCH® tools?

Also Recommended
LM3402HV▲For 500mA Output Current
LM3404▲For Vin Range 6V To 75V



MY BRIEFCASE                                     Remove all from My Briefcase 
Click any "Briefcase" icon to add an item

Typical Application
click for larger image


Block Diagram
click for larger image



Typical Performance
click for larger image


Paramaters / ValuesLM3404HV LM3402HV LM3404
TopologyBuck Constant Current Buck Buck
Input Min Voltage6 Volt 6 Volt 6 Volt
Input Max Voltage75 Volt 75 Volt 42 Volt
Output Current1000 mA 525 mA 1000 mA
Efficiency (peak)96 % 96 % 96 %
Output Min0.2 Volt .2 Volt 0.2 Volt
Output Max73 Volt 73 Volt 40 Volt
Special FeaturesCurrent Regulator Current Regulation
Adjustable OutputYes Yes Yes
On/Off PinYes Yes Yes
Error FlagNo No No
Switching Frequency1000 kHz 1000 kHz 1000 kHz
Adj Switch FrequencyYes Yes Yes
Sync PinNo No No
Step-DownYes Yes Yes
Step-UpNo No No
InvertingNo No No
FlybackNo No No
RegTypeSwitching Regulator Switching Regulator Switching Regulator
Temperature Min-40 deg C -40 deg C -40 deg C
Temperature Max125 deg C 125 deg C 125 deg C
AutomotiveYes Yes Yes
PowerWiseYes Yes Yes
Part Number(s)
(NSID)		Top ViewAvailabilityCurrent Reported StockBudgetary PricingStandard Pack Size
LM3404HVMA/NOPB

RoHS



SOIC NARROW		Full production
Lead Time: 8 weeks

Samples
DistributorRegionQty
AVNET-EMWorldwide80
DIGIKEYWorldwide426
FARNELLEurope and Asia468
FUTUREWorldwide5
NEWARKAmericas1898
RS COMPONENTSWorldwide181
RSL MICROAsia Pacific380
$1.55 each at 1K+ pcsrail
of
95
LM3404HVMAX/NOPB

RoHS



SOIC NARROW		Full production
Lead Time: 6 weeks

 
DistributorRegionQty
DIGIKEYWorldwide0
FUTUREWorldwide1100
$1.55 each at 1K+ pcsreel
of
2500
LM3404HVMR/NOPB

RoHS



PSOP		Full production
Lead Time: 10 weeks

Samples
DistributorRegionQty
ARROWWorldwide1807
DIGIKEYWorldwide0
FARNELLEurope and Asia547
FUTUREWorldwide1100
$1.55 each at 1K+ pcsrail
of
95
LM3404HVMRX/NOPB

RoHS



PSOP		Full production
Lead Time: 12 weeks

 
DistributorRegionQty
DIGIKEYWorldwide0
$1.55 each at 1K+ pcsreel
of
2500

Part Number(s)
(NSID)		DescriptionAvailabilityCurrent Reported StockBudgetary PricingStandard Pack Size
LM3404HVEVAL
LM3404HVMA (SOIC) - 1A Constant Current Buck HV Regulator for HB LEDs (LM3404HVEVAL Board)Full production


 
DistributorRegionQty
DIGIKEYWorldwide7
FUTUREWorldwide1
NATIONALWorldwide61
$37.50 each1
LM3404HVMR 1.0A Constant Current Buck Regulator for Driving High Power LEDs

General Features:
  • Integrated 1.0A MOSFET
  • VIN Range 6V to 75V
  • 1.2A Output Current Over Temperature
  • Cycle-by-Cycle Current Limit
  • No Control Loop Compensation Required
  • Separate PWM Dimming and Low Power Shutdown
  • Supports All-Ceramic Output Capacitors and Capacitor-Less Outputs
  • Thermal Shutdown Protection
  • SO-8 Package
Applications:
  • LED Backlight
  • Constant Current Source
  • Automotive Lighting
  • General Illumination
  • Industrial Lighting
LM3404HVEVAL Package Includes:
  • A fully assembled LM3404HVMA (SOIC) based evaluation board
  • LM3404HV datasheet
  • AN-1545 - LM3404/HV evaluation board appnote

Part Number(s)
(NSID)		DescriptionAvailabilityCurrent Reported StockBudgetary PricingStandard Pack Size
LM3404FSTDIMEV
LM3404FSTDIMEV - Fast Dimming and True Constant LED Current Evaluation BoardFull production
Lead Free (RoHS)

 
DistributorRegionQty
FUTUREWorldwide1
NATIONALWorldwide2
$40.00 each1

Description:

The LM3404/04HV are buck regulator derived controlled current sources designed to drive a series string of high power, high brightness LEDs (HBLEDs) at forward currents of up to 1.0A (LM3404/04HV). This evaluation board demonstrates the enhanced thermal performance, fast dimming and true constant LED current capabilities of the LM3402 and LM3404 devices.

Contents:


Part Number(s)
(NSID)		DescriptionAvailabilityCurrent Reported StockBudgetary PricingStandard Pack Size
LM3404MREVAL
LM3402/LM3404 High Power PSOP-8 Evaluation boardFull production


 
DistributorRegionQty
DIGIKEYWorldwide4
FUTUREWorldwide7
NATIONALWorldwide110
$37.50 each1
General Features:

  • Integrated 1.0A MOSFET
  • VIN Range 6V to 42V (LM3404)
  • VIN Range 6V to 75V (LM3404HV)
  • 1.2A Output Current Over Temperature
  • Cycle-by-Cycle Current Limit
  • No Control Loop Compensation Required
  • Separate PWM Dimming and Low Power Shutdown
  • Supports All-Ceramic Output Capacitors and Capacitor-Less Outputs
  • Thermal Shutdown Protection
  • SO-8 Package, PSOP-8 Package

Applications:

  • LED Driver
  • Constant Current Source
  • Automotive Lighting
  • General Illumination
  • Industrial Lighting

LM3404MREVAL Package Includes:

  • A fully assembled LM3404HVMR PSOP based evaluation board
  • LM3404HV datasheet
  • AN-1585 - LM3404/HV (PSOP package) evaluation board appnote

Part Number(s)
(NSID)		Top ViewTypePinsMSL RatingPeak ReflowRoHSCAD SymbolsModelsPackage
Marking
Format
LM3404HVMA/NOPB
SOIC NARROW81260RoHSDownloadN/A
NSZXTT
L3404
HVMA
LM3404HVMAX/NOPB
SOIC NARROW81260RoHSDownloadN/A
NSZXTT
L3404
HVMA
LM3404HVMR/NOPB
PSOP83260RoHSDownloadN/A
NSXYTT
L3404
HVMR
LM3404HVMRX/NOPB
PSOP83260RoHSDownloadN/A
NSXYTT
L3404
HVMR

Reliability Metrics
Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LM3404HVMAABCD150XV1038680025950002736338335
LM3404HVMAXABCD150XV1038680025950002736338335
LM3404HVMRABCD150XV1038680025950002736338335
LM3404HVMRXABCD150XV1038680025950002736338335

Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.


LED Driver Design for General Illumination
Loading video...


Automotive LED Lighting Challenges & Solutions
Loading video...


 
LED Driver Design for General Illumination
Date: 5/4/2009
Length: 0:36:55

Automotive LED Lighting Challenges & Solutions
Date: 4/14/2009
Length: 0:35:00

[Information as of 20-Nov-2009]