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1
Vout= 0.6+(R249*0.6/R252)
C274
NC
200K 1%
R249
R255
1 FB
8
EN
U14
D
R320
2 FS
7
SYV869
BS
4.7R
3 GND
6
LX
L5 10uH
4 GND1
5
IN
IC_SYV869
FB39
FB120
24VIN
Vout= 0.6+(R258*0.6/R259)
NC
C282
R258
100K 1%
1 FB
8
R264
EN
U20
R254
C273
2 FS
7
BS
SYV869
4.7R
0.1u50V
C
3 GND
6
LX
L13 10uH
4 GND1
5
IN
IC_SYV869
SS34
D14
24VIN
SS34
D12
5 D
3
S
Q4
VBAT
6 D
4435
2
S
7 D
1
S
8 D
R236
100K
R239
1K
NC
R272
B
DC_DET
10K
D15 IN4148
R273
D11 IN4148
POW_ON
NC
R234
C292
R235
100K 1%
1 FB
8
EN
R263
2 FS
7
U21
BS
4.7R
SYV869
3 GND
6
LX
L4 10uH
4 GND1
5
IN
IC_SYV869
Vout= 0.6+(R235*0.6/R265)
=3.9V
A
V5
V4
V3
V2
V1
PROTOTYPE-A3
YMJ
2017.3.14
ISS
CHANGE RECORDS
DATE
REVISER
1
CONFIDENTIAL UNDER NDA
2
D10 IN4148
VBAT
=15.5V
D9
D2
10K
D3
C291
0.1u50V
=5.2V
U5V
Vin
16.2
10K
Vdet
2.4V
U5V
NC
SYS_5V
U5V
FB42
Rcs=68mV/(1.2XI(lpeak))=68mV/(1.2X15)
R275
R155
VBAT
R154
100K
R271 10K
C281
BAT_POW_ON
0.1u50V
VEN=Pin15
VEN=0.4~0.9V: STBY
VEN=1.12~1.29V: Enable
VEN=1~1.28V: Disable
VOL_MAX_BOOST_EN
2
3
IN4148
SS34
R3
10mR
SS34
C3
0.1u25V
R4
0R
1 ACN
R5
0R
2 ACP
3 CMSRC
Iin
1A
2A
U2
4 ACDRV
VSEN
10mV
20mV
IC_BQ24773
5 ACOK
6 ACDET
19
4
C12
100P
7 IADP
2.81
0.59
C18 100P
33K 1%
R12
22R
R16
9523_SDA
22R
R18
9523_SCL
IL=15A
5mR
L14
8mR
3.3UH
IC_QFN16_3X3_TPS43061
R185 0R
R174 0R
NC
5
11
ISNS-
BOOST
0R
6
12
ISNS+
SW
R177
VIN=4.5~38V
VIN
7
R157
15
U11
10
EN
VCC
10K
TPS43061
14
C248 220P
PGOOD
R161
C227
3
COMP
5.6K
22nF
R156
R179
1
13
RT/CLK
HDRV
82K
0R
0.1u50V
R175
2
8
SS
LDRV
C226
0R
9
4
PGND
FB
62K1%
100K1%
R166
R165
13K 1%
100K1%
DC_BIAS
R182
R181
10K
R327
2
Q14
2N3904
3
4
WNM3034
R128
4.7R
R130
C168 0.047u25V
G
4
4.7R
C163
21
ILIM
G
0.01u
4
R117
20
SRP
100K 1%
19
SRN
18
BATDRV
R47
10R
17
BAT
VBAT
16
Cell:
Low 1 cell
CELL
Float 2cell
High 3 cell
15
BATPRES
charged 2.5A
CMPOUT
BT_3.3V
R19 3M R145
nc
R35
10K
BT_3.3V
9523_SCL
R146
nc
VBAT
9523_SDA
NC
C345 NC
R336
24VIN
C298
R178
3.3R
47P
Q6
3 S
5
D
6
D
2 S
7
D
1 S
8
D
PE632BA
5 D
3
S
R169
6 D
2
S
7 D
1
S
8 D
Q5 PEE28BB
1M1%
R163
NC
C270
BoomBox II
TITLE:Schematic
POW+BOOST+CAHARG
Part NO:NA
4
5
Q10
D
L2
R77
10mR
2.2uH
1 S
3
D
C46
0.1u16V
R79
0R
J5
0R
R80
XX
R339
0R
LRCK50
1
LRCK51
CE12
2
LRCK52
3
100u25V
4
LRCK57
5
LRCK56
6
C
7
LRCK53
8
Q17
LRCK54
9
NC/2N7002
S
D
LRCK55
1
3
10
0R
R270
Q15
NC/2N7002
S
D
1
3
0R
R312
ILmax=6A
24VIN
11V-20V for AMP
SS34
D18
D17
SS34
FB33
AMP_VCC
B
3 S
5
D
FB120
6
D
2 S
7
D
FB36
1 S
8
D
FB120
Q18
4435
10K
R167
10K
2
BAT_POW_ON
Q2
2N3904
A
MODEL:XXX
SCALE: FREE
REV: V1.0
SHEET: 1/4
APPROVAL
CHECKED
DESIGN
YangMJ
Luosj
2019.6.14
5
From No.:FM-QMP005-13
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