Showing posts with label LED DRIVER SCHEMATIC. Show all posts
Showing posts with label LED DRIVER SCHEMATIC. Show all posts
Thursday, October 6, 2011
LM3433 4A to 20A LED DRIVER EVALUATION BOARD ELECTRONIC DIAGRAM
LM3433 4A to 20A LED DRIVER EVALUATION BOARD ELECTRONIC DIAGRAM
LM3433 is an adaptive constant on-time DC/DC buck constant current controller designed to drive a high brightness LEDs (HB LED) at high forward currents. It is a true current source that provides a constant current with constant ripple current regardless of the LED forward voltage drop. The board can accept an input voltage ranging from -9V to -14V w.r.t. GND. The output configuration allows the anodes of multiple LEDs to be tied directly to the ground referenced chassis for maximum heat sink efficacy when a negative input voltage is used.
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