Part Number(s)
(NSID) | Description | Availability | Current Reported Stock | Budgetary Pricing | Pack
Size |
|---|
LM3405AEVAL/NOPB
| 1.6MHz, 1A Constant Current Buck LED Driver with Internal Compensation in Tiny SOT-23 Package | Full production
Lead Free (RoHS)
|
| $45.00 each | 1 |
| Features:
- VIN operating range of 3V to 22V
- Drives up to 5 High-Brightness LEDs in series at 1A
- Thin SOT23-6 package
- 1.6MHz switching frequency
- EN/DIM input for enabling and PWM dimming of LEDs
- 300mΩ NMOS switch
- 40nA shutdown current at VIN = 5V
- Internally compensated current-mode control
- Cycle-by-cycle current limit
- Input voltage UVLO
- Over-current protection
- Thermal shutdown
Applications:
- LED Driver
- Constant Current Source
- Industrial Lighting
- LED Flashlights
- LED Lightbulbs
Contents:
- A LM3405A Fully Assembled Evaluation Board
- A LM3405A Datasheet
- A LM3405A Evaluation Board Appnote
|
Part Number(s)
(NSID) | Description | Availability | Current Reported Stock | Budgetary Pricing | Pack
Size |
|---|
LM3405AXMYEVAL
| LM3405AXMY - 1.6 MHz, 1A Constant Current Buck LED Driver with Internal Compensation in eMSOP Package | Full production
|
| $55.00 each | 1 |
| Description:
LM3405A is a 1A constant current buck LED driver designed to provide a simple high efficiency solution for driving high power LEDs. With a 0.205V reference voltage feedback control to minimize power dissipation, an external resistor sets the current as needed for driving various types of LEDs. Switching frequency is internally set to 1.6MHz, allowing small surface mount inductors and capacitors to be used. The LM3405A utilizes current-mode control and internal compensation offering ease of use and predictable, high performance regulation over a wide range of operating conditions. With a maximum input voltage of 22V, it can drive up to 5 High-Brightness LEDs in series at 1A forward current with the single LED forward voltage of approximately 3.7V. Additional features include user accessible EN/DIM pin for enabling and PWM dimming of LEDs, thermal shutdown, cycle-by-cycle current limit and over-current protection.
Contents:
|
National Semiconductor follows the provisions of the Product Stewardship Guide for Customers
(
CSP-9-111C1)
and Banned Substances and Materials of Interest Specification
(
CSP-9-111S2)
for regulatory environmental compliance. Details may be found at:
www.national.com/en/packaging/greennopb.html.
Lead free products are RoHS compliant.
Lead Free product status is available through the search tool located
here
All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.
Moisture Sensitivity Level Data for LM3405A.
A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.
National's certificate of product compliance for LM3405A is located at RoHS Status.
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
|
LM3405AXMK | PVIP050 | 0 | 14280 | 0 | 0 | 1755000 | 3 | 497986041
|
|
LM3405AXMKE | PVIP050 | 0 | 14280 | 0 | 0 | 1755000 | 3 | 497986041
|
|
LM3405AXMKX | PVIP050 | 0 | 14280 | 0 | 0 | 1755000 | 3 | 497986041
|
|
LM3405AXMY | PVIP050 | 0 | 14280 | 0 | 0 | 1755000 | 3 | 497986041
|
|
LM3405AXMYX | PVIP050 | 0 | 14280 | 0 | 0 | 1755000 | 3 | 497986041
|
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.
All information pertaining to the RoHS Compliance Standard can be found at http://www.national.com/en/packaging/leadfree.html.
Moisture Sensitivity Level Data for LM3405A.
A RoHS compliance or an IPC 1752 report can be acquired at http://www.national.com/en/packaging/greennopb.html.
National's certificate of product compliance for LM3405A is located at RoHS Status.
