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Evaluation board for LM3410X LED driver

Posted: 30 Dec 2010     Print Version  Bookmark and Share

Keywords:LM3410X  switching frequency  periodic pulse signal 

This evaluation board displays National Semiconductor's LM3410X as a boost LED driver. It is designed to drive four, on-board LEDs (VOUT = 11.4V) in series at an average LED current (ILED) of 190mA. The circuit can accept an input voltage of 3.3V-5.5V. The switching frequency of the LM3410X converter is 1.6MHz allowing the use of small surface mount inductors and chip capacitors.

This evaluation board also features the PWM capability of the LM3410 by enabling the user to apply a periodic pulse signal to the DIM terminal of varying duty cycle. This is a 2-layer board using the bottom layer as a ground plane. A schematic and layout are shown along with measured performance characteristics. A bill of materials isalso provided that describes the parts used on this evaluation board.

View the PDF document for more information.

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