Datasheet
RoHS Compliance Information
| Size in Kbytes | Date |
 |
| LM3402/LM3402HV 0.5A Constant Current Buck Regulator for Driving High Power LEDs |
564
Kbytes |
14-Dec-08 |
Download |
LM3402/LM3402HV 0.5A Constant Current Buck Regulator for Driving High Power LEDs (Japanese)
 |
600 Kbytes |
|
 |
Package Availability, Models, Samples & Pricing
| Part Number | Package | Factory Lead Time | Models | Samples &
Electronic
Orders | Budgetary Pricing | Std
Pack
Size | Package
Marking
Format |
| Type | Pins | Spec. | MSL
Rating | Peak
Reflow | RoHS
Report | CAD
Symbols | Weeks | Qty | Qty | $US each |
| LM3404FSTDIMEV | LM3404FSTDIMEV - Fast Dimming and True Constant LED Current Evaluation Board | Full production | N/A
|
| 1+ | $40.00 | 1 | - |
| 8 weeks | N/A |
| LM3404MREVAL | LM3402/LM3404 High Power PSOP-8 Evaluation board | Full production | N/A
|
| 1+ | $37.50 | 1 | - |
| 8 weeks | N/A |
| LM3402HVEVAL | LM3402HVMA (Mini SOIC) - 0.5A Constant Current Buck HV Regulator for HB LEDs (LM3402HVEVAL Board) | Full production | N/A
|
| 1+ | $37.50 | 1 | - |
| 8 weeks | N/A |
| LM3402HVMR | PSOP | 8 | NOPB | 3 | 260 | RoHS |
Download |
Full production | N/A
| 
| 1K+ | $1.35 | rail
of
95 | NSXYTT
L3402
HVMR |
| 8 weeks | N/A |
| LM3402HVMRX | PSOP | 8 | NOPB | 3 | 260 | RoHS |
Download |
Full production | N/A
|
| 1K+ | $1.35 | reel
of
2500 | NSXYTT
L3402
HVMR |
| 12 weeks | N/A |
| LM3402HVMM | MINI SOIC | 8 | NOPB | 1 | 260 | RoHS |
Download |
Full production | N/A
|
| 1K+ | $1.35 | reel
of
1000 | ZXTT
SNFB |
| 6 weeks | 10000 |
| LM3402HVMMX | MINI SOIC | 8 | NOPB | 1 | 260 | RoHS |
Download |
Full production | N/A
|
| 1K+ | $1.35 | reel
of
3500 | ZXTT
SNFB |
| 6 weeks | 10000 |
General Description
The LM3402/02HV 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 735
mA (typical) for step-down (Buck) regulators. Hysteretic control with controlled on-time coupled with an external resistor
allow the converter output voltage to adjust as needed to deliver a constant current to series and series - parallel connected
arrays of LEDs of varying number and type, LED dimming by pulse width modulation (PWM), broken/open LED protection, low-power
shutdown and thermal shutdown complete the feature set.
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
|
LM3402HVMM | ABCD150XV1 | 0 | 3868 | 0 | 0 | 2595000 | 2 | 736338335
|
|
LM3402HVMMX | ABCD150XV1 | 0 | 3868 | 0 | 0 | 2595000 | 2 | 736338335
|
|
LM3402HVMR | ABCD150XV1 | 0 | 3868 | 0 | 0 | 2595000 | 2 | 736338335
|
|
LM3402HVMRX | ABCD150XV1 | 0 | 3868 | 0 | 0 | 2595000 | 2 | 736338335
|
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.
Design Tools
| Title | Size in Kbytes |
Date |
|
|
|
| LED Reference Design Library |
|
|
View |
|
|
Reference Designs
Application Notes
| Title | Size in Kbytes |
Date |
|
| AN-1500: Application Note 1500 LM3402/02HV Demo Board |
29977
Kbytes |
5-Jun-07 |
Download |
AN-1500 (Chinese): Application Note 1500 LM3402/02HV Demo Board
|
531 Kbytes |
|
 |
| AN-1839: Application Note 1839 LM3402/LM3404 Fast Dimming and True Constant LED Current Evaluation Board |
678
Kbytes |
10-Dec-08 |
Download |
AN-1839 (Chinese): Application Note 1839 LM3402/LM3404 Fast Dimming and True Constant LED Current Evaluation Board
|
746 Kbytes |
|
|
[Information as of 7-Nov-2009]
|
