LM3406HV - 1.5A Constant Current Buck Regulator for High Power LED Drivers from the PowerWise® Family
Datasheet Packaging Samples & Pricing Reliability Knowledge Base

Features
•Integrated 2.0A MOSFET
•VIN Range 6V to 42V (LM3406)
•VIN Range 6V to 75V (LM3406HV)
•True average output current control
•1.7A Minimum Output Current Limit Over Temperature
•Cycle-by-Cycle Current Limit
•PWM Dimming with Dedicated Logic Input
•PWM Dimming with Power Input Voltage
•Simple Control Loop Compensation
•Low Power Shutdown
•Supports All-Ceramic Output Capacitors and Capacitor-less Outputs
•Thermal Shutdown Protection
•eTSSOP-14 Package

General Description

The LM3406/06HV are monolithic switching regulators designed to deliver constant currents to high power LEDs. More...


Applications

•LED Driver
•Constant Current Source
•Automotive Lighting
•General Illumination
•Industrial Lighting
  Typical Application
click for larger image


ParametersValues
Topology Buck
Input Min Voltage 6 Volt
Input Max Voltage 75 Volt
Output Current 1500 mA
Efficiency (peak) 96 %
Output Min 0.2 Volt
Special Features 2 wire dimming
Adjustable Output Yes
On/Off Pin Yes
Error Flag No
Switching Frequency 1000 kHz
Adj Switch Frequency Yes
Sync Pin No
Step-Down Yes
Step-Up No
Inverting No
Flyback No
RegType LED Driver
Temperature Min -40 deg C
Temperature Max 125 deg C
Feedback Voltage 0.2 Volt
Automotive No
PowerWise Yes


Typical Performance

click for larger image


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LM3406HV
 
6.00 <=		 V in Lower
 V		  
<=		 V in Upper
 V		  
<= 75.00
Ambient Temperature  °C <= 100


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Also Recommended
LM3401▲PFET Controller, Scalable Output Current Up To 4A
LM3402HV▲Output Current Up To 500mA
LM3404HV▲Output Current Up To 1A
LM3406▲Input Voltage Range 6V To 42V
Block Diagram
click for larger image



Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LM3406/06HV 1.5A Constant Current Buck Regulator for Driving High Power LEDs 509
Kbytes		 22-Aug-09 Download

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Package Availability, Models, Samples & Pricing
Part NumberPackageFactory Lead TimeModelsSamples &
Electronic
Orders		Budgetary PricingStd
Pack
Size		Package
Marking
Format
TypePinsSpec.MSL
Rating		Peak
Reflow		RoHS
Report		CAD
Symbols		WeeksQtyQty$US each
LM3406HVMHTSSOP EXP PAD14NOPB1260RoHS N/A Full productionN/A
Samples
Buy Now 		1K+$1.68rail
of
94		NSUZXYTT
LM3406
HVMH
6 weeksN/A
LM3406HVMHXTSSOP EXP PAD14NOPB1260RoHS N/A Full productionN/A
 
Buy Now 		1K+$1.68reel
of
2500		NSUZXYTT
LM3406
HVMH
6 weeksN/A

General Description

The LM3406/06HV 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 2.0A (typical) for step-down (Buck) regulators. Controlled on-time with true average current and an external current sense 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) is achieved using a dedicated logic pin or by PWM of the power input voltage. The product feature set is rounded out with low-power shutdown and thermal shutdown protection.

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM LTA Rejects LTA Device Hours FITS MTTF (Hours)
LM3406HVMHABCD150XV1038680025950002736338335
LM3406HVMHXABCD150XV1038680025950002736338335

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.


[Information as of 8-Nov-2009]