DC2199A - Schematic

5
4
3
2
1
REVISION HISTORY
ECO
REV
__
DESCRIPTION
APPROVED
DATE
PRODUCTION
DAVID B.
10-29-14
2
R10
C55
1nF
C113
33nF
R150
14.3K
5
C66
47nF
200V
1206
AG1
C102
0.1uF
0805
Q29
IRF6217
B
3
R109
10K
AS
C119
1nF
2
1
D30
ZHCS506
Q31
OPT
RUN
C73
1nF
+ C26
OPT
12VOUT / 30A
+ C68
150uF
16V
7343
C78
33nF
0805
C105
0
R122
0
IS+
2
3
C
-SENSE
E6
+VOUT
3.3nF SGND
IS+
VSOUT
ITH
SGD
11
ITH
R69
46.4K
R125
17.4K
R115
0
1/4W
1206
C74
0
18
17
IS-
VCC
19
+SENSE
E5
VS-
OPT
SYNC
R124
0
R126
OPT
12
VS+
13
VS-
FS/SYNC
15
R43
OPT
-
E4
C70
0
28
21
VIN
NDRV
22
24
VCC
R123
118K
R121
133K
R107
OPT
LTC3766EGN
SSS
-VOUT
-VOUT
VCC
C103
R113
OPT
1206
MODE
PT-
RS+
R106
OPT
Q27
FCX491A
R116
VAUX
U2
R118
681K
D34
ES1PD
4
3
R140
274
1/8W
0805
C75
100pF
C76
3.3nF
R41
11.5K
R42
1K
6
FB
R119
OPT
R120
VCC
OPT
R68
2.15K
C79
4.7nF
C77
4.7uF
1206
PGND
R127
OPT
1/4W
1206
C9
OPT
R46
604
B
COG
1
SGNDP
R112
0
PT-
C112
0.22uF
200V
1210 +VOUT
150uF
16V
7343
VS+
VCC
4
AG
0
IPK
ND
PT+
C23
C25
+ C7
150uF
16V
7343
0603
R137
1
R111
0
R7 RS0
VPK
R138
OPT
VAUX
26
25
AG
AG1
C80
1nF
28.7K
SGND
1uF
16V
0805
C111
10
4
R8
0
AS
R117
12.7K
1T
C71
R147
OPT
PHASE
AG
1.25T
6
0603
5
4
T2
+ C31
150uF
16V
7343
J4
PGND OPT
1
IS+
R139
26.7K
16
1
+ C33
C34
22uF
16V
1210
RUN
R6
0
FG
R146
0
R114
R103
0
C8
OPT
R77
0
0805
OPT 1206
TRANS-PA3493NL
3
R101
100
PGND
SG
C101 0.1uF
220pF 0805
IN-
DELAY
UV
R22
3.74K
C72
15
R75
215
0805
-VOUT
7
8
2
PGND
GND
RCORE
1
SSFLT
9
11
GND2
C24
1uF
16V
0805
SGNDP
LTC3765EMSE
17
13
C30
2.2nF
4
+VOUT
321
R108
250V
1812
U1
RUN
PSS
SGND
-VIN
IN+
6
12
1N4148WS
VCC
FS/UV
3
2
10
D40
1
NDRV
E7
RUN
PG
4
14
3
VCP
4
RS- R102 RS+
321
Q15 BSC028N06NS3
0
Q14 BSC028N06NS3 1225
Q24 OPT
+
J3
Q12 BSC028N06NS3
Q13 BSC028N06NS3
Q23 OPT
PGND
R18
102K
0805
R149
100
C118
1.5nF
RS-
SGNDP
IS-
C
R148
100
ISMAG
6
5
2
1
3
R29
100K
0805
Q28
FDC2512
R136
0.005
1225/2512
PGNDP
R52
3.0
1206
2
1
123
C10
2.2nF
630V
1206
FG
R51
3.0
1206
8765
27
C106
150pF
200V
D29
ZHCS506
8765
C69
1.5nF
630V
1206
FG
5678
Q8 BSC190N15NS3
Q9 BSC190N15NS3
Q11 OPT
R5
OPT
2512
SWB
R53
6.8
1206
4
0
R4
8.2K
2512
CLAMP
D1
ES1PD
GND
VIN
ND
SGND
R76
4.22 0805
R49
FG
12 13
14
1
IS+
1
6 5
23
R9
0
E3
+VOUT
L3
3.3uH
Q3
OPT
SW
3
-VOUT
8.2 1206
7
SW
D28
OPT
3
-VIN
OPT
REGSD
1.21K
0805
D27
ZHCS506
9 10
3
16
1210
R84
2
4
1
E2
32
C5
4.7uF
100V
3
C4
4.7uF
100V
1210
C3
4.7uF
100V
1210
VSEC
-VIN
C6
4.7uF
100V
1210
SS
33uF
80V
D
8.2 1206
R24
C51
470pF
630V
1206
9
C2
4.7uF
100V
1210
+ C22
PGND
20
33uF
80V
R3
1
2
3
+ C1
R23
14
FGD/SWB
36V-60VIN
VA
R2
OPT
RUN
E1
T1
LTCP26-0402
8
2
8
1
L2
2.0uH
5
6
7
8
+VIN
T3
CT02-100
VIN
3
2512
2
1.0uH
OPT
2512
1
D
L1
R1
0.33
R110
1.20
1206
1/2W
ITH-
SGND
C11
15nF
R151
100
SGNDP
A
NOTE:
4.7uF 100V MURATA, GRM32ER72A475KE14 (X7R 1210)
4.7uF 25V AVX, 12063C475KAT2A (X7R 1206)
22uF 16V MURATA, GRM32ER71C226MEA8L (1210 X5R)
2.2nF 250V Murata GA343QR7GD222KW01L (X7R 1812)
150uF 16V PANASONIC, 16TQC150MYF
33uF 80V PANASONIC, EEHZA1K330P (10x12.5mm)
L2 Vishay IHLP4040DZER2R0M11
L3 Coilcraft SER2915L-332KL
Unless otherwise specified:
0.005 ohm Susumu KRL6432D-M-R005-F-T5 (1225)
All resistors are in ohms 0603.
R110 SUSUMU, RL1632S-1R20-F (1206)
All capacitors are in microfarads 0603.
T1 Champs, LTC-PQ26-0402
All capacitors are 25V.
T2 Pulse, PA3493NL
CUSTOMER NOTICE
1/16W = 0402, 1/10W = 0603, 1/8W = 0805,
1/4W = 1206, 1W = 2512.
5
APPROVALS
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES.
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APP ENG.
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
4
3
2
TECHNOLOGY
LT
DAVID B.
TITLE: SCHEMATIC
SIZE
N/A
SCALE = NONE
DATE:
IC NO.
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
ACTIVE CLAMP FORWARD CONVERTER
WITH DIRECT FLUX LIMIT
LTC3765EMSE / LTC3766EGN
DC2199A
Wednesday, October 29, 2014
SHEET 1
1
REV.
2
OF 2
A
5
4
3
2
1
OPTIONAL CIRCUITS
D
D
J1
FG
R11
1.00K
R13
6.8
2512
RSQ1
7
2
5
C16
56pF
1
6
4
3
ZXGD3002E6
R14
6.8
2512
R15
6.8
2512
CLAMP
D2
OPT
R25
1
OPT
PSS
PSS
2
R34
3
OPT
4
5
C15
0.1uF
0805
6
Q4
FQD4P25
2
C14
0.1uF
R17
100K
1206
SGNDP
R19
1.5K
R26 OPT
SGND
SSS
SSS
7
R35 OPT
8
ITH
R27 OPT
VS+
R28 OPT
1
16
VDD
B1
VSS2
VSS
1
Q1
C20
0.1uF
VCC
15
4
A1
CRX
8
2
C13
10pF
RES
R12
4.99K
3
47pF
5
SO16
U3
HEF4528BT
SGNDP
C17
15nF
200V
1206
ACTIVE SNUBBER
VSS1
C12
SW
ITH
RSITHC
ITH-
R30 OPT
VS-
R31 OPT
VS-
VS+
9
10
11
PTSYNC
PT-
R32 OPT
SYNC
R33 OPT
12
13
14
1
2
3
4
5
6
7
8
9
10
C
11
12
13
14
OPT
HD2X7-MOLEX
VCCP
2
AG
AG
C18
OPT
PGNDP
5
PGNDP
1
6
4
+VOUT
OPT
2
AG1
AG1
VA
C21
OPT
0805
D4
1
VA
D37
1
3
OPT
OPT
D38
OPT
OPT
3
PEAK CHARGE VCC
L4
VAUX
VPK
VA
2
C116
OPT
1206
D35
OPT
1
OPT
0805
C114
OPT
0805
PGND
PGNDP
A
PGND
CUSTOMER NOTICE
APPROVALS
LINEAR TECHNOLOGY HAS MADE A BEST EFFORT TO DESIGN A
CIRCUIT THAT MEETS CUSTOMER-SUPPLIED SPECIFICATIONS;
HOWEVER, IT REMAINS THE CUSTOMER'S RESPONSIBILITY TO PCB DES.
VERIFY PROPER AND RELIABLE OPERATION IN THE ACTUAL
APP ENG.
APPLICATION. COMPONENT SUBSTITUTION AND PRINTED
CIRCUIT BOARD LAYOUT MAY SIGNIFICANTLY AFFECT CIRCUIT
PERFORMANCE OR RELIABILITY. CONTACT LINEAR
TECHNOLOGY APPLICATIONS ENGINEERING FOR ASSISTANCE.
THIS CIRCUIT IS PROPRIETARY TO LINEAR TECHNOLOGY AND
SUPPLIED FOR USE WITH LINEAR TECHNOLOGY PARTS.
5
B
R152
1
B
VCC FROM T1
SW
C19
Q2
OPT
3
AC DRIVER
4
3
2
TECHNOLOGY
LT
DAVID B.
TITLE: SCHEMATIC
SIZE
N/A
SCALE = NONE
DATE:
IC NO.
1630 McCarthy Blvd.
Milpitas, CA 95035
Phone: (408)432-1900 www.linear.com
Fax: (408)434-0507
LTC Confidential-For Customer Use Only
ACTIVE CLAMP FORWARD CONVERTER
WITH DIRECT FLUX LIMIT
LTC3765EMSE / LTC3766EGN
DC2199A
Wednesday, October 29, 2014
SHEET 2
1
REV.
2
OF 2
A
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