JBL CHARGE 5 - Amplifier Power Supply Circuits; DC-DC Boost for Amplifier; Amplifier Power Switching

R69+R707=182K
*)*)(559:,58'36 '369]OZIN
DC_BIASBoost_FB
COMP
PW_EN
SS
COMP
Boost_FB
PW_EN
SS
AMP_PVCC
BAT_3V7
AMP_PVCC +PVCC
BAT_3V7
AMP_PVCC
BOOST_EN
DC_BIAS
BOOST_EN
R39 12K/1%
C309
100nF/25V/X5R
R51 NC/47K
C211
0.1uF/16V/X7R
U8
MP3431GL
SW
1
VDD
2
SS
3
COMP
4
FB
5
VIN
12
BST
13
AGND
6
ILIM
9
MODE
10
PGND
7
VOUT
8
EN
11
BOOST_EN
R37 1K
C528
470pF/50V/X7R
C319
0.01uF/50V/X7R
C64
22uF/25V/X5R
C219
2200pF/50V/X7R
C311
22UF/6.3V/X5R
C70
0.22uf/10v/X5R
C508
NC/0.1uF/16V/X7R
AMP_PVCC
C318
1000pF/50V/X7R
C63
0.1uF/16V/X7R
C310
22UF/6.3V/X5R
FB13 300ȍ/3A
1 2
C58 100nF/25V/X5R
R340 10K
C68
22uF/25V/X5R
R43
180K/1%
+
CE3
220uF
U6
ME4435
S1
1
S3
2
S2
3
G1
4
D4
5
D3
6
D2
7
D1
8
R49
100K
C69
4.7uF/6.3V/X5R
C529
470pF/50V/X7R
+
CE2 220uF/6.3V
Q5
3DG3904M
U23
MP3431GL
SW
1
VDD
2
SS
3
COMP
4
FB
5
VIN
12
BST
13
AGND
6
ILIM
9
MODE
10
PGND
7
VOUT
8
EN
11
C60
22UF/6.3V/X5R
C312
22uF/25V/X5R
C62
1000pF/50V/X7R
L2 1.5uH/16A
R336 1K/1%
+PVCC
C313
22uF/25V/X5R
C308
0.22uf/10v/X5R
R38 56K/1%
C195
0.1uF/16V/X7R
R331
10K/1%
R40
100K
R335 1K/1%
C57
4700pF/50V/X7R
FB14 300ȍ/3A
1 2
R45
NC/47K
C218
2200pF/50V/X7R
R48
8.2K/1%
R337 2.2ȍ
C49
100nF/25V/X5R
C71
3300pF/50V/X7R
R42 NC/47K
C315 100nF/25V/X5R
C316
0.1uF/16V/X7R
C50
100nF/25V/X5R
C72
4700pF/50V/X7R
C41
22uF/25V/X5R
C314
4.7uF/6.3V/X5R
+
CE6 220uF/6.3V
R338
18K/1%
C65
100nF/25V/X5R
R35
0/1%
C67
22uF/25V/X5R
L3 1.5uH/16A
R332
750Kȍ/1%
C40
0.1uF/16V/X7R
R36
100K
R334 2.2ȍ
C317
1000pF/50V/X7R
C59
22UF/6.3V/X5R
R333
NC/47K
R339
1K
C66
1000pF/50V/X7R
R50
18K/1%
Circuit Diagram-Main Board