Datasheets
Application Notes
Other Technical Documents
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 LM3445.
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 LM3445 is located at RoHS Status.
Part Number(s)
(NSID) | Description | Availability | Current Reported Stock | Budgetary Pricing | Pack
Size |
|---|
LM3445-120VFLBK/NOPB
| 120VFLBK-LM3445 evaluation board optimized for 120V input isolated applications | Full production
Lead Free (RoHS)
|
| $80.00 each | 1 |
 This demonstration board highlights the performance of a LM3445 based Flyback LED driver solution that can be used to power a single LED string consisting of 4 to 8 series connected LEDs from an 90 VRMS to 135 VRMS, 60 Hz input power supply. The key performance characteristics under typical operating conditions are summarized in this application note. This is a two-layer board using the bottom and top layer for component placement. The demonstration board can be modified to adjust the LED forward current, the number of series connected LEDs that are driven and the switching frequency.
Features:
- Drop-in compatibility with TRIAC dimmers
- Line injection circuitry enables PFC values greater than 0.95
- Adjustable LED current and switching frequency
- Flicker free operation
Applications:
- Retro-fit TRIAC Dimming
- Solid State Lighting
- Industrial and Commercial Lighting
- Residential Lighting
Contents:
Other Resouces:
|
Part Number(s)
(NSID) | Description | Availability | Current Reported Stock | Budgetary Pricing | Pack
Size |
|---|
LM3445-120VSMEV/NOPB
| 120VSMEV- 15W, non-isolated LM3445 evaluation board optimized for efficiency | Full production
Lead Free (RoHS)
|
| $80.00 each | 1 |
 Description:
The LM3445-120VSMEV 110V Off-Line TRIAC Dimmer LED board converts 90VAC to 135VAC input, and drives seven, or eight series connected LEDs at 350 mA average current. The LM3445 switching frequency is set at a nominal 225 kHz. This is a four-layer board using the bottom and top layer for component placement. The demonstration board can be modified to adjust the LED forward current, the number of series connected LEDs and switching frequency.
LM3445 110V Evaluation Board Comparison
- LM3445TRIACEVAL has extra pads for evaluating various AC input filter solutions. This board has a lower efficiency rating
- LM3445-120VSMEV has been laid out to fit inside an Edison socket and uses a 0.031" thick PCB. It also has the most efficient design.
Contents:
|
Part Number(s)
(NSID) | Description | Availability | Current Reported Stock | Budgetary Pricing | Pack
Size |
|---|
LM3445-208277EV/NOPB
| 208-277 Vac Triac Dimmable Off-line LED Driver Evaluation Board | Full production
Lead Free (RoHS)
|
| $80.00 each | 1 |
 The demonstration board included in this shipment is capable of converting a 176 VAC to 305 VAC input that has been phase dimmed to drive multiple LED`s at up to 500 mA average current. The evaluation board utilizing the LM3445 will automatically adjust the LED current and light output in relation to the triac firing angle.
The target solution for this design was 230 VAC input driving 8 series connected white LEDs.? In this configuration the LM3445 will run at a nominal switching frequency of 80 kHz and supply a maximum of 350 mA.
Contents:
|
Part Number(s)
(NSID) | Description | Availability | Current Reported Stock | Budgetary Pricing | Pack
Size |
|---|
LM3445-230VFLBK/NOPB
| 230VFLBK-LM3445 evaluation board optimized for 230V input isolated applications | Full production
Lead Free (RoHS)
|
| $80.00 each | 1 |
 This demonstration board highlights the performance of a LM3445 based Flyback LED driver solution that can be used to power a single LED string consisting of 4 to 10 series connected LEDs from an 185 VRMS to 265 VRMS, 50 Hz input power supply. The key performance characteristics under typical operating conditions are summarized in this application note. This is a two-layer board using the bottom and top layer for component placement. The demonstration board can be modified to adjust the LED forward current, the number of series connected LEDs that are driven and the switching frequency.
Features:
- Drop-in compatibility with TRIAC dimmers
- Line injection circuitry enables PFC values greater than 0.94
- Adjustable LED current and switching frequency
- Flicker free operation
Applications:
- Retro-fit TRIAC Dimming
- Solid State Lighting
- Industrial and Commercial Lighting
- Residential Lighting
Contents:
Other Resouces:
|
Part Number(s)
(NSID) | Description | Availability | Current Reported Stock | Budgetary Pricing | Pack
Size |
|---|
LM3445-EDSNEV/NOPB
| EDSNEV- 10W, non-isolated LM3445 evaluation board optimized for small solution size | Full production
Lead Free (RoHS)
|
| $80.00 each | 1 |
 The evaluation board included in this shipment converts
85VAC to 135VAC input and drives five to thirteen series connected
LED`s at the currents listed in the Evaluation Board
Operating Conditions section. This is a two-layer board using
the bottom and top layer for component placement. The board
is surrounded by a larger area allowing for extra test points
and connectors for ease of evaluation. The actual board size
is contained inside the larger outer area and can be cut out
for the smallest size possible. The evaluation board can be
modified to adjust the LED forward current and the number of
series connected LEDs. The topology used for this evaluation
board eliminates the need for passive power factor correction
and results in high efficiency and power factor with minimal
component count which results in a size that can fit in a standard
A19 Edison socket. This board will also operate correctly
and dim smoothly using most standard triac dimmers. Output
current is regulated within ±15% of nominal from circuit to circuit
and over line voltage variation.
Contents:
Other Resouces:
|
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 LM3445.
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 LM3445 is located at RoHS Status.
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
|
LM3445M | ABCD150XV1 | 0 | 3868 | 0 | 0 | 2595000 | 2 | 736338335
|
|
LM3445MM | ABCD150XV1 | 0 | 3868 | 0 | 0 | 2595000 | 2 | 736338335
|
|
LM3445MMX | ABCD150XV1 | 0 | 3868 | 0 | 0 | 2595000 | 2 | 736338335
|
|
LM3445MX | 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.
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 LM3445.
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 LM3445 is located at RoHS Status.
