DC1817B - Schematic

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4
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1
CAUTION: HANDLING HIGH VOLTAGE INVOLVES RISK TO LIFE. COMPLY WITH SAFETY REGULATIONS!
D
D
C2
0.22uF
400V
FILM
R5
68
R3
100k
1%
C21
22pF
R10
499k
1%
90 - 265VAC
R1
100k
1%
1206
1206
L
R11
499k
1%
2
R2
100k
1%
1206
C
BAV20W
R4
5.49K
1%
R7
33K
C12
22pF
D1
C3
R9
510
1210
1
C24
47pF
630V
1206
2
V1
D5
SBR20A200CTB
9
3
8
4
6
10uF
50V
D8
C23
C25
10uF
35V
1210
+
C10
1000uF
35V
+
C11
1000uF
35V
R27
510
1210
J2
1
+
2
R28
510
1210
10
CMR1U-10M
-
24V / 2A
11
C
5
R23
R35
301k 1%
2.4M 1%
16
VINSENSE
10
R36
VIN
F1
250V, 3.15A
INTVCC
11
1N4148
VDRS10P320BSE
DCM
1
N
D2
C13
2.2nF
1210
+
J1
R32
51K
1210
T1
750811248
FB
9
OPT
12
L2
27mH
B82731H2701A030
2
4
1
3
R18
10k
1%
4
R19
40.2k
1%
3
CAC1 0.1uF
2
GATE
SENSE
INTVCC
CTRL2
COMP-
2
1
Q1
IPB60R165CP
15
INTVCC
CTRL3
COMP+
L1
1mH
R25
14
20 1%
VREF
R20
31.6k
B
275VAC
EN_UVLO
13
R8
0.03
1206
C20
2200pF
C8
4.7uF
16V
0805
8
Y1
B
C6
0.1uF
50V
7
CTRL1
2
1
R38
24.9k
GND
LT3798EMSE
17
VC
B1
HD06
OVP
6
4
1
U1
5
R37
0
-
+
3
C7
2.2uF
CUSTOMER NOTICE
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
TECHNOLOGY
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
TITLE:
SCHEMATIC
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
A
NOTES: UNLESS OTHERWISE SPECIFIED,
1. ALL CAPACITORS AND RESISTORS ARE 0805.
SIZE
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
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N/A
DATE:
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
ISOLATED NO OPTO-COUPLER FLYBACK
CONTROLLER WITH ACTIVE PFC
IC NO.
REV.
LT3798EMSE
1
DC1817B
SHEET
Wednesday, October 01, 2014
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