Texas Instruments LM3444 Evaluation Boards LM3444-120VFLBK/NOPB LM3444-120VFLBK/NOPB Datenbogen
Produktcode
LM3444-120VFLBK/NOPB
L2
R3
C11
Q2
Q3
D3
I
COLL
V+
BR1
+
+
1
2
3
4
5
6
7
8
9
10
V
LED
R4
GND
VCC
FLTR2
NC
NC
ISNS
GATE
NC
COFF
NC
LM3444
V
LED-
D10
C7
C9
D4
D8
V+
C1
C2
F1
D1
D2
D9
R2
Q1
C5
R8
R6
R7
C12
U1
C4
C10
RT1
R10
VAC
J1
V
BUCK
L1
C15
L3
L4
TP3
D12
TP14
TP15
TP16
TP5
LED-
LED-
L5
TP4
LED+
LED+
TP7-9
SNVS682C – NOVEMBER 2010 – REVISED MAY 2013
LM3444 Design Example 1
Input = 90V
Input = 90V
AC
to 135V
AC
, V
LED
= 7 x HB LED String Application at 400 mA
Copyright © 2010–2013, Texas Instruments Incorporated
21
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