LM3445_14 Datasheet, PDF (17/37 Pages) Texas Instruments – Triac Dimmable Offline LED Driver

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MASTER/SLAVE CONNECTION DIAGRAM
V+
MASTER LM3445
R2
Q1
D2 BAS40
D1
R5
C5
R11
MASTER
VCC CTRL
LM3445MM
R1
U1
1 ASNS BLDR 10
2 FLTR1 VCC 9
C3
3 DIM GATE 8
4 COFF ISNS 7
5 FLTR2 GND 6
C4
MASTER
DIM CTRL
MASTER-V_BUCK
MASTER-
BUCK
TP18
TP19
R13
C13
R12
D11
TP17
MASTER/
SLAVE
CIRCUIT
Q5
C14
LM3445
SNVS570K – JANUARY 2009 – REVISED NOVEMBER 2011
TP10
V+
R2
SLAVE LM3445
Q1
D2 R10
D1
R5
C5
R11
LM3445MM
U1
1 ASNS BLDR 10
2 FLTR1 VCC 9
3 DIM GATE 8
4 COFF ISNS 7
5 FLTR2 GND 6
C4
SLAVE
BUCK
SLAVE-V_BUCK
Figure 23. Master Slave Configuration
MASTER/SLAVE BLOCK DIAGRAMS
V+
N
BR1
L
Valley-Fill
CKT
Valley-Fill
CKT
MASTER
BUCK
MASTER
CTRL
SLAVE
BUCK
MASTER
VCC
MASTER
DIM
Valley-Fill
CKT
SLAVE
BUCK
Figure 24. Master/Slave Configuration With Separate Valley-Fill Circuits
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