Texas Instruments LM3445 Evaluation Board LM3445-120VFLBK/NOPB LM3445-120VFLBK/NOPB Benutzerhandbuch
Produktcode
LM3445-120VFLBK/NOPB
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.
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.
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.
proper operation, ensure that the desired number of LEDs are connected at the
output before applying power to the evaluation board.
5
SNVA429C – August 2010 – Revised May 2013
AN-2034 LM3445 -120VAC, 8W Isolated Flyback LED Driver
Copyright © 2010–2013, Texas Instruments Incorporated