Texas Instruments LM3445 Evaluation Board LM3445-230VFLBK/NOPB LM3445-230VFLBK/NOPB Datenbogen
Produktcode
LM3445-230VFLBK/NOPB
I
COLL
V+
BR1
VAC
TRIAC
DIMMER
+
+
1
2
3
4
5
6
7
8
9
10
-
V
LED
GND
VCC
FLTR2
ASNS
FLTR1
ISNS
GATE
BLDR
COFF
DIM
LM3445MM
V
LED-
D3
C7
C9
C10
D4
D8
D9
R2
D1
Q1
C5
R5
C12
D2
D10
Q2
L2
Q3
R3
R4
C11
C4
C3
R1
U1
V
BUCK
SNVS570L – JANUARY 2009 – REVISED MAY 2013
THEORY OF OPERATION
Refer to
which shows the LM3445 along with basic external circuitry.
Figure 14. LM3445 Schematic
Copyright © 2009–2013, Texas Instruments Incorporated
9
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