Resonant LLC Converter: Operation and Design
17
Application Note AN 2012-09
V1.0 September 2012
6 Schematics and Bill of Material
Figure 6.1 Schematics
2
1
3
4
IC1
SFH6186-3T
R24
NC
R16
3.9k
R20
1k
C18
NC C19
330n
INPUT
PGND
R21
3.3k
C1
2.2nF/500VAC
R18
10
SB
CT1
FB
C20
10n
400V
Q1
BSC028N06NS
SC
SW2
SD
R22
0
C21
100n
Q5
BSC028N06NS
Q2
BSC028N06NS
Q6
BSC028N06NS
CT2
C2
10uF/100V
C3
10uF/100V
C7
10uF/100V
C8
10uF/100V
C12
10uF/100V
C13
10uF/100V
C14
0.47uF/250V
CT1 CT2
CS+CS-
C22
10uF/25V
R23
10k
-Vin
1
NC
6
NC
7
-Vout
4
+Vout
5
+Vin
2
NC
3
NC
8
U1
Isolated DC/DC
R13
402k
R15
402k
R17
402k
R19
402k
C23
10uF/25V
12V
3
1
2
IC2
TL431
D3
IDH05G65C5
C6
2.2u/450V
C5
2.2u/450V
D5
IDH05G65C5
D4
IDH05G65C5
D6
IDH05G65C5
D12
13V
C16
1u
R8
1k
D10
12V
C17
1u
R14
NC
Q9
MMBT3904
R25
0
R7
NC
12V
12V_SEC
CS- CS+
12V
12V_SEC
12V_SEC
T2
Trans CT
1
2
INPUT+
CON1
1
2
INPUT-
CON2
1
2
12V
CON3
1
2
GND
CON4
1
2
OUT+
CON5
1
2
OUT-
CON6
400V
INPUT
C10
2.2u/450V
T1
Trans
C15
0.47uF/250V
Q3
PBSS4032PT,215
R3
10k
SA
SW1
R1
0
Q4
PBSS4032PT,215
R4
10k
R2
0
Q8
PBSS4032PT,215
R10
10k
R6
0
Q7
PBSS4032PT,215
R9
10k
R5
0
D1
1N5819HW-7-F
D2
1N5819HW-7-F
D8
1N5819HW-7-F
D7
1N5819HW-7-F
W2
Jumper
R12
1k
W1
Jumper
+ C4
NC
+ C25
NC
C11
2.2u/450V
+ C27
NC
+ C29
NC
+ C9
NC
+ C26
NC
+ C28
NC
+ C30
NC
+ C31
NC
1
3
4
25
U2
AP331AWG-7
12V_SEC
3
1
2
IC3
TL431
R31
10k
R28
1k
R26
5.6k
12V_SEC
Q10
2N7002
R29
10k
12V_SEC
FB
R27
10k
C24
NC
2
1
3
4
IC4
SFH6186-3T
R30
NC
C46
NC
R62
10k
R11
402k
R47
402k
R60
402k
R61
402k
400V
Load
R63
NC
R32
0
C47
NC
R64
NC
AC
2
V-
1
V+
4
AC
3
D11
Bridge
AC
2
V-
1
V+
4
AC
3
D9
Bridge
C34
100n
C45
1n
C44
1u
R50
30k
C40
2.2u
138
10
Vres VINS
CLVmc
7
11
9
Vref
TD
14
12
CS
SRD
17
GND
SHG
15
18
16
SLG
LG
5
SS
FREQ
3
6
4
LOAD
Delay
19
HG
20
VCCTimer
1
2
EnA
IC7
ICE2HS01G
C43
10n
R49
1M
R39
5.6k/1%
R56
30k
R57
12k
C41
10u
R58
NC
R41
62k
R37
9.1k/1%
FB
R43
220k
R55
100k
R44
30k
R52
1k
R45
NC
R59
0
C37
100n
R38
0
R51
220k
R53
18k
R40
NC
C38
47nF
C42
NC
C32
100n
C36
100n
R35
10
R33
10
12V
12V
FB
INPUT
SA
SB
SW1
SC
SC
R46
4.7/1W
C39
470p
R42
0
R48
0
VREF
R54
NC
SA
SW1
SB
12V
CS+
CS-
CS-
CS+
VDD
1
LI
6
VSS
7
HS
4
HI
5
HB
2
HO
3
LO
8
IC5
C35
100n
C33
100n
R36
10
R34
10
12V
SW2
SW2
VDD
1
LI
6
VSS
7
HS
4
HI
5
HB
2
HO
3
LO
8
IC6
SD
SD
12V
EN
Load