Texas Instruments LM3445 Evaluation Board LM3445-120VFLBK/NOPB LM3445-120VFLBK/NOPB 사용자 설명서
제품 코드
LM3445-120VFLBK/NOPB
R15
C11
FLTR2
R2
R7
DIM
R9
C14
R1
R3
D7
Q1
R8
ASNS
FLTR1
DIM
COFF
FLTR2
BLDR
VCC
GND
GATE
ISNS
LM3445
1
2
3
4
5
10
9
8
7
6
V+
C7
C8
V
CC
R22
D8
R12
R13
R14
+
VLED+
VLED
±
L1
C5
R4
V+
LINE
NEUTRAL
INPUT EMI FILTER AND RECTIFIER CIRCUIT
Q2
D1
D3
D4
D5
C3
C4
DIM
V
CC
FLTR2
R11
C10
R10
TRIAC HOLDING
CIRCUIT
R16
C12
Q3
Q4
R20
C1
D6
C6
L2
R6
R24
C9
R5
C2
RT1
D2
F1
T1
C13
+
LM3445 120VAC, 8W Isolated Flyback LED Driver Demo Board Schematic
Figure 3. Demo Board Schematic
6
AN-2034 LM3445 -120VAC, 8W Isolated Flyback LED Driver
SNVA429C – August 2010 – Revised May 2013
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