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LM3445 120VAC, 8W Isolated Flyback LED Driver Demo Board Schematic

5 LM3445 120VAC, 8W Isolated Flyback LED Driver Demo Board Schematic

WARNING

The LM3445 evaluation board has exposed high voltage

components that present a shock hazard. Care must be taken when

handling the evaluation board. Avoid touching the evaluation

board and removing any cables while the evaluation board is

operating. Isolating the evaluation board rather than the

oscilloscope is highly recommended.

CAUTION

The ground connection on the evaluation board is NOT referenced to earth

ground. If an oscilloscope ground lead is connected to the evaluation board

ground test point for analysis and AC power is applied, the fuse (F1) will fail

open. The oscilloscope should be powered via an isolation transformer before

an oscilloscope ground lead is connected to the evaluation board.

The LM3445 evaluation board should not be powered with an open load. For

proper operation, ensure that the desired number of LEDs are connected at the

output before applying power to the evaluation board.

SNVA429C–August 2010–Revised May 2013 AN-2034 LM3445 -120VAC, 8W Isolated Flyback LED Driver

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