DC1775A - Schematic

5
4
3
2
1
REVISION HISTORY
ECO
E1
F1
DESCRIPTION
APPROVED
DATE
4
PRODUCTION
GEORGE Q.
11/07/11
L1
1Amp
L2
V1
2
90 - 270VAC
50/60Hz
750uH
320VAC
C1
47nF
2
D
B1
600V
0.8A
+
-
1
3
4
310VAC
3
L
1
D
REV
39mH
R1
C2
4
E2
N
C3
47nF
400V
249
1%
R2
249
1%
1210
E3
D1
T1
7508111417
220nF
450V
D2
1210
5
R3
100k
BAV20W-7-F
LED+
0.5A / 28V
DFLS1200-7
Wurth Elektronik
+
10
D3
9
CMZ5938B
C4
330uF
50V
+
R4
8.06k
1%
C5
330uF
50V
1206
4
8
R5
20
INTVCC
C
R11
590k
1%
R7
499k
1%
R8
499k
1%
R9
130k
1%
1206
1206
1206
R12
499k
1%
R13
499k
1%
1206
Q2
1206
C6
R10
2k
10uF
50V
1206
E4
1
C7
2200pF
C
2
D4
SMBJ170A-13-F
1210
R14
100k
LED-
7
R6
4.53k
1%
C8
4.7pF
D5
3
D6
CMMR1U-06
MMBT3906
C9
2.2uF
16V
11
BAV20W-7-F
R16
3.48k
1%
R15
32.4k
1%
VIN
16
10
DCM
VIN_SENSE
FB
9
Q1
FQPF7N65C
TO-220F
R17
1
C10
0.1uF
GATE
4
R19
15k
R21
100k
FAULT
B
3
2
12
R22
10.7k
1%
SENSE
15
VREF
INTVCC
CTRL3
INTVCC
5
20
CTRL1
R18
40.2k
1%
14
13
R20
0.100
1%
C11
4.7uF
25V
FAULT
B
0805
CTRL2
COMP-
NC
COMP+
CT
GND
6
17
C13
8
C12
0.022uF
7
U1
LT3799EMSE
0.1uF
CUSTOMER NOTICE
A
NOTES: UNLESS OTHERWISE SPECIFIED,
1. RESISTOR VALUES ARE 5%.
2. CAPACITORS AND RESISTORS ARE 0603.
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
APPROVALS
PCB DES.
TECHNOLOGY
MI
APP ENG. GEORGE Q.
5
4
3
TITLE: SCHEMATIC
ISOLATED TRIAC DIMMABLE LED DRIVER
SIZE
C:\PADS PROJECTS\MIKEITURRALDE\1775A\1775A-4\SCH\1775A_REV4.DSN
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
N/A
SCALE = NONE
2
IC NO.
REV.
LT3799EMSE
DEMO CIRCUIT 1775A
DATE: Thursday, February 02, 2012
SHEET 1
1
4
OF 1
A
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