Table of Contents
Advertisement
Bill of Materials, Board Layout, and Schematics
Input Voltage Range
3.5V to 26V
VIN
10A Max
R8
TP4
0
PGND
Q7
J1
VIN
2
1
PGND
R3
R4
C3
3.9
3.9
10uF
Z1
35V
26V
PGND
C18
1uF
PGND
C22
R9
C23
R10
PGND
0.1uF
100k
10uF
10.0
35V
PGND
PGND
3
4
R14
20k
Q9A
DCX124EK-7-F
3V3
PGND
R17
Q9B
10.0k
DCX124EK-7-F
5
1
CHG_OK
Q10
PGND
60V
GND
3V3
R36
2.00k
D4
Green
Q11
1
CHG_OK
60V
GND
1. DNP means "Do Not Populate".
20
BQ2573X Evaluation Module
C53
C54
DNP
33uF
33uF
R1
0.005
Q2
C4
C42
C43
10uF
10uF
10uF
4
35V
35V
35V
DNP
C13
C12
C17
R11
R12
330pF
10nF
1000pF
4.99
4.99
50V
50V
R5
C11
C19
DNP
56
C24
C44
C45
PGND
0.01uF
150pF
10uF
10uF
10uF
35V
35V
35V
PGND
VIN
TP10
C46
C47
R13
0.033uF
0.033uF
1.0
TP13
VBUS
TP16
GND
GND
C25
470nF
TP17
50V
VDDA
TP19
R18
GND
REGN
10
C29
ILIM_HIZ
1uF
C31
R19
TP22
383k
ILIM_HIZ
33pF
GND
C33
4700pF
R22
40.2k
R25
10.0k
2
TP23
3V3
C35
R27
HIZ
GND
1
100pF
220k
TP25
JP6
TP26
TP28
GND
R31
J3
DNP
3V3
100
R35
R32
R33
R45
10.0k
10.0k
10.0k
10.0k
SDA
SCL
CHG_OK
0022053041
GND
ILIM_HIZ
TP34
J2
TP35
1
3V3
2
3
VBUS
4
CELL_control
1
R37
2
Receptacle_4x1
DNP
OTG
TP36
R39
10.0k
J4
JP2
10.0k
GND
R40
1
2.0M
2
TP38
3
Receptacle_3x1
R7
300k
GND
GND
Figure 3-8. BQ25731 EVM Schematic
Copyright © 2021 Texas Instruments Incorporated
R43
DNP
0
TP2
TP3
L1
Q3
0.047uF
0.047uF
4
C15
C16
DNP
C14
330pF
TP6
TP7
R6
7
C20
VDDA
DNP
56
30
25
BTST1
BTST2
150pF
32
23
SW1
SW2
PGND
29
26
LODRV1
LODRV2
TP11
31
24
HIDRV1
HIDRV2
TP14
1
U1
22
VBUS
VSYS
2
21
ACN
BATDRV
3
20
ACP
SRP
19
SRN
TP21
C30
REGN
28
REGN
6
ILIM_HIZ
2.2uF
R23
16
17
C32
PGND
COMP1
COMP2
15.0k
680pF
15pF
11
C34
GND
PROCHOT
18
CELL_BATPRESZ
13
SCL
TP27
12
8
SDA
IADPT
TP29
4
9
CHRG_OK
IBAT
C36
TP30
5
10
100pF
OTG/VAP
PSYS
C37
R44
DNP
100pF
100k
15
CMPOUT
R34
33
Thermal_Pad
30.1k
14
27
TP32
CMPIN
PGND
BQ25731RSN
NT1
TP8
TP39
TP31
TP33
Net-Tie
PGND
GND
J7
1
2
3
4
5
6
7
8
SCL
9
10
SDA
GND
N2510-6002-RB
C51
C52
DNP
10uF
10uF
TP5
VSYS
C41
C5
C6
C7
C8
C9
C10
C21
C40
0.01uF
10uF
10uF
10uF
10uF
10uF
10uF
10uF
10uF
R46
0
TP9
R2
BAT
0.005
AON6407
DNP
Q5
C56
C55
C27
33uF
10uF
35V
TP12
0.1uF
C28
R15
R16
TP15
1uF
10
10
C57
DNP
PGND
TP18
TP20
0.068uF
50V
VDDA
C58
C59
DNP
DNP
18nF
18nF
50V
50V
JP3
GND
GND
TP24
R24
R41
R20
R42
R21
300k
150k
82k
33k
1.00k
1CELL
2 CELL
3 CELL
4 CELL
5 CELL
R30
191k
Q12
1
2
R28
CELL_control
BAT Removal
1
100k
R29
60V
300k
JP4
GND
D2
D3
BAT
VBUS
R38
U2
10.0
PM-REG-LM3480-SOT3
TP37
2
1
IN
OUT
3V3
C38
GND
C39
0.1uF
0.1uF
JP8
PGND
SLUUCB9A – JUNE 2020 – REVISED JANUARY 2021
Submit Document Feedback
www.ti.com
C49
C50
SYS Output Voltage
DNP
33uF
33uF
23.16V MAX
35V
35V
15A MAX
PGND
1
VSYS
C48
C2
2
DNP
33uF
47uF
PGND
J6
35V
PGND
2
VBAT
1
PGND
D1
C26
DNP
J5
10uF
BAT Output Voltage
23V MAX
15A MAX
PGND
Advertisement
Table of Contents
