Table of Contents
Advertisement
www.ti.com
4 LP8864EVM Schematic
Figure 4-1
shows the LP8864EVM schematic.
J1
VBAT+
J4
15A
FB1
R2
VBAT+
0
F1
3V to 48V
C16
C17
C18
C19
C23
L3
MAX 5A
10uF
4.7µF
4.7µF
0.01uF
0.01uF
J5
R5
GNDin
0
J6
GNDin
J7
VDDEXT
J8
VDDEXT
J9
GND
VDDIO
R17
2.26k
R21
2.26k
R22
2.26k
R23
10.0k
D2
R27
D3
2.26k
R29
D4
2.26k
U2
R33
VIN
1
IN
OUT
0
2
EN
NC
GND
C47
10uF
TPS7B8250QKVURQ1
GND
SNVU731 – NOVEMBER 2020
Submit Document Feedback
J2
VIN
L1
DNP
Q1
DNP
R3
VIN
3
2
5
VINP
0.02
2.2uH
1
C20
C21
R4
C24
SD
4.7µF
4.7µF
68uF
20.0k
U1
GND
1
VDD
VDD
C26
C27
4.7µF
0.1uF
GND
SD
38
SD
37
R11
VSENSE_N
76.8k
36
VSENSE_P
35
UVLO
R13
20.5k
3
C1N
C29
4
C1P
GND
2.2µF
R16
5
DNP
VDD
CPUMP
6
0
CPUMP
R18
R19
R20
C30
C31
DNP
10.0k
10.0k
10.0k
4.7µF
0.1uF
EN
2
EN
SYNC
PWM
EN
GND
PWM
28
PWM
DNP
DNP
R25
R26
SYNC
27
10.0k
10.0k
BST_SYNC
GND
INT
24
INT
SDA
25
SDA
SCL
26
SCL
12
ISET
R32
14
NC
20.8k
16
NC
23
NC
GND
LP8864QDCPRQ1
VDD_5V
U3
TLV70033QDDCRQ1
5
1
5
IN
OUT
VDD_3V3
C45
C46
4
C44
3
4
EN
NC
1uF
1uF
22uF
GND
6
GND
GND
GND
Figure 4-1. LP8864EVM Schematic
Copyright © 2020 Texas Instruments Incorporated
J3
VINP
TP1
L2
3
S
C2
C3
C4
C5
C6
C7
4
C14
S
22µH
33uF
10uF
10uF
10uF
10uF
10nF
10nF
GND
GND
R7
7
GD
10.0
DNP
C25
220pF
10
ISNS
GND
13
FB
C28
DNP
220pF
15
DISCHARGE
OUT1
22
OUT1
OUT2
21
OUT2
OUT3
20
OUT3
OUT4
19
OUT4
3.92k
R24
32
BST_FSET
3.92k
R28
31
PWM_FSET
3.92k
R30
30
LED_SET
11.0k
R31
33
MODE
11
GND
ISNSGND
34
DGND
8
PGND
9
PGND
29
SGND
17
LED_GND
18
LED_GND
39
LED_GND
GND
0 R34
FB3
J14
VDD
VDDEXT
PWM
DNP
DNP
VDD
EN
0 R35
VDD_5V
DNP
0
R36
VDD_3V3
SCL
0 R37
VDDIO
VDD
DNP
0
R38
VDD_3V3
LP8864EVM Schematic
C1
DNP
R1
220pF
DNP
5.1
GND
D1
1
3
2
C8
C9
C10
C11
C12
C13
C15
DNP
DNP
10nF
10nF
10µF
10µF
10µF
10µF
33uF
GND
R6
49.9
4
R8
R9
Q2
0
909k
R12
R14
100k
0
R15
0.02
GND
GND
VBOOST
J10
1
2
3
4
5
6
7
8
GND
C32
C33
OUT1
DNP
VBOOST
1nF
C34
C35
OUT2
DNP
1nF
C36
C37
OUT3
DNP
1nF
C38
C39
OUT4
DNP
1nF
J11
J12
J13
1
2
SYNC
1
1
3
4
INT
2
2
5
6
GND
3
3
7
8
4
4
9
10
SDA
GND
GND
LP8864 Evaluation Module
MAX 47V, 0.8A
VBOOST
FB2
C22
10nF
GND
R10
0
1nF
1nF
1nF
1nF
GND
11
Advertisement
Table of Contents
