LM3409HV High Voltage LED Buck Controller ... - Element14
LM3409HV High Voltage LED Buck Controller ... - Element14
LM3409HV High Voltage LED Buck Controller ... - Element14
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<strong>LM3409HV</strong>EVAL: <strong>LM3409HV</strong> <strong>High</strong> <strong>Voltage</strong> <strong>LED</strong> <strong>Buck</strong><br />
<strong>Controller</strong> Evaluation Board<br />
Product Description:<br />
Your Electronic Engineering Resource<br />
The <strong>LM3409HV</strong>EVAL evaluation board showcases the <strong>LM3409HV</strong> PFET controller<br />
for a buck current regulator. It is designed to drive 12 <strong>LED</strong>s (VO = 42V) at a<br />
maximum average <strong>LED</strong> current (I<strong>LED</strong> = 1.5A) from a DC input voltage (VIN =<br />
48V). The switching frequency (fSW = 400 kHz) is targeted for the nominal<br />
operating point, however fSW varies across the entire operating range. The circuit<br />
can accept an input voltage of 6V-75V. The PCB is made using 4 layers of 2 oz.<br />
copper with FR4 dielectrics. The evaluation board circuit can be redesigned to<br />
target the same switching frequency and <strong>LED</strong> current at a higher nominal input<br />
voltage. This design modification will increase the efficiency at high input voltage.<br />
Key Features:<br />
LM3409Q/LM3409QHV is an Automotive Grade product<br />
that is AEC-Q100 grade 1 qualified<br />
2Ω, 1A Peak MOSFET Gate Drive<br />
VIN Range: 6V to 42V (LM3409/LM3409Q)<br />
VIN Range: 6V to 75V<br />
(<strong>LM3409HV</strong>/LM3409QHV)<br />
Differential, <strong>High</strong>-side Current Sense<br />
Cycle-by-Cycle Current Limit<br />
No Control Loop Compensation Required<br />
10,000:1 PWM Dimming Range<br />
250:1 Analog Dimming Range<br />
Ordering Information:<br />
Supports All-Ceramic Output Capacitors<br />
and Capacitor-less Outputs<br />
Low Power Shutdown<br />
Thermal Shutdown Protection<br />
Thermally Enhanced eMSOP-10 Package<br />
Kit Content:<br />
<strong>LM3409HV</strong> Evaluation Board<br />
LM3409 Datasheet<br />
AN-1953 Application Note 1954 <strong>LM3409HV</strong><br />
Evaluation Board<br />
Featured Links:<br />
Mfr Part Number <strong>Element14</strong> Order Code Description<br />
<strong>LM3409HV</strong>EVAL/NOPB 1788084 <strong>LED</strong> <strong>Buck</strong> <strong>Controller</strong> Eval. Board<br />
National Semiconductor on element14<br />
Legal Disclaimer: The content of the pages of this website is for your general information and use only. It is subject to change without notice. From time to time, this website may<br />
also include links to other websites. These links are provided for your convenience to provide further information. They do not signify that we endorse the website(s). We have no<br />
responsibility for the content of the linked website(s). Your use of any information or materials on this website is entirely at your own risk, for which we shall not be liable. It shall<br />
be your own responsibility to ensure that any products, services or information available through this website meet your specific requirements.
Associated Products:<br />
Your Electronic Engineering Resource<br />
Part Number Manufacturer Description <strong>Element14</strong> Order Code<br />
<strong>LM3409HV</strong>MY/NOPB<br />
NATIONAL<br />
SEMICONDUCTOR<br />
IC, PFET CONTROLLER,<br />
BUCK, MSOP-10<br />
1735796<br />
LZ1-00U600 <strong>LED</strong>ENGIN <strong>LED</strong> 5W 365NM 1901493<br />
Legal Disclaimer: The content of the pages of this website is for your general information and use only. It is subject to change without notice. From time to time, this website may<br />
also include links to other websites. These links are provided for your convenience to provide further information. They do not signify that we endorse the website(s). We have no<br />
responsibility for the content of the linked website(s). Your use of any information or materials on this website is entirely at your own risk, for which we shall not be liable. It shall<br />
be your own responsibility to ensure that any products, services or information available through this website meet your specific requirements.
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