Texas Instruments LP8864, Руководство пользователя

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