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 LM3464.
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 LM3464 is located at RoHS Status.
Part Number(s)
(NSID) | Description | Availability | Current Reported Stock | Budgetary Pricing | Pack
Size |
|---|
LM3464-120V24W/NOPB
| evaluation board | Full production
Lead Free (RoHS)
|
| $150.00 each | 1 |
 This evaluation board consists of a National Semiconductor
LM5021 based 120Vac 24W AC/DC flyback converter and a
LM3464 based dynamic head room control (DHC) four channel
LED driver IC. This demonstration platform was developed
so that the customers could evaluate the LM3464 with
an AC/DC supply. Once familiar with the operation of the
LM3464 and its control of the AC/DC converter`s control loop,
the type of AC/DC power supply and the converter`s output
power becomes less relevant. The evaluation board contains
eight CREE XLamp MC-E LEDs. Each XLamp MC-E LED has
four separate LEDs in each package for a total of 32 LEDs.
The CREE MC-E LED allows for an easy demonstration of
the LM3464 four channel operation with eight packaged
LEDs. each LED string is regulated to 200 mA. A heat sink is
mounted on the back of the PCB to dissipate the heat generated
by the LEDs.
Contents:
- LM3464 and LM5021 DHC 25W Board with 4 LED strings
- Application Note 2102 LM3464 and LM5021 DHC 25W Reference Designs
|
Part Number(s)
(NSID) | Description | Availability | Current Reported Stock | Budgetary Pricing | Pack
Size |
|---|
LM3464EVAL/NOPB
| LM3464 4 Channel LED Driver Evaluation Board | Full production
Lead Free (RoHS)
|
| $80.00 each | 1 |
 The LM3464 is a linear LED driver with Dynamic Headroom
Control (DHC) technology designed to drive four serial high
power / high brightness LED strings. Four individual linear
current regulators with low-side N-channel MOSFETs realize
regulations of LED currents. The DHC optimizes system efficiency
automatically while maintaining stable and accurate
LED currents. The LM3464 includes a voltage regulator for
powering the internal circuits that operates over wide input
range of 12V to 80V, eases the design of driver stage for different
source voltage. The Thermal foldback feature is designed
to prolong the lifetime of the LEDs by reducing the
average LED current for applications with high ambient temperature.
The LM3464 features a fault handling circuit that
avoids system failure due to accidentally short or open circuit
of LED strings. Two or more LM3464 can be cascaded to expand
the number of output channels, enabling flexible system
architectural design.
This evaluation board demonstrates the system efficiency
and LED current regulation accuracy of the LM3464 LED
driver typical application circuit as a 50W LED lighting system.
Standard Settings of the Evaluation Board
- Vin range 12V to 80V
- 48V LED turn ON voltage
- 350mA LED current per channel
- 2kHz thermal foldback dimming frequency
Contents:
- LM3464EVAL board
- AN-2071 LM3464 4 Channel LED Driver Evaluation Board Application Note
|
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 LM3464.
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 LM3464 is located at RoHS Status.
