Texas Instruments TPS65994 EVM, Руководство пользователя, Страница: 21 / 59

Figure 9-2. TPS65994EVM PD Controller
SYS_PWR
IMax = 3A
SYS_PWR
GND GND
TVS Diode for faulty barrel jacks
GND GND
Used for GND return for high currents
GND
SYS_PWR LED Indicator
2
1
Blue
D4
CS1
1
VFB1
2
VREG3
3
VFB2
4
CS2
5
EN2
6
PGOOD
7
SW2
8
VBST2
9
DRVH2
10
DRVL2
11
VIN
12
VREG5
13
VO1
14
DRVL1
15
DRVH1
16
VBST1
17
SW1
18
VCLK
19
EN1
20
GND
21
TPS51225RUKR
U3
3.3uH
L1
2.2
R29
15.4k
R32
10.0k
R36
10.0k
R37
6.49k
R31
GND GND
2.2uH
L2
GND GND
0.1uF
C14
2.2
R30
0.1uF
C15
GND GND
51.1k
R34
47.5k
R35
GND GND GND
PWR_EN
PWR_EN
P3V3 P5V
IMax = 8A
GND
PGOOD
4.7uF
C22
GND
4.7uF
C21
GND
GND
P5V0
3V3_LDO_EN
3V3_LDO_EN
3
1
5
9
2
4 7
6
8
Q3
CSD87330Q3D
3
1
5
9
2
4 7
6
8
Q4
CSD87330Q3D
6.3V
100uF
C20
6.3V
100uF
C19
SYS_PWR
6.3V
100uF
C17
6.3V
100uF
C16
GND
100k
R113
TP7
TP8
TP10 TP11
TP13 TP12
0 R33
0 R112
10.0k
R38
D3
GND
P3V3
GND
P5V
22uF
C12
22uF
C13
22uF
C10
22uF
C11
47uF
C46
47uF
C47
47uF
C18
47uF
C45
SENSE
1
GND
4
POWER
2
POWER
3
GND
5
SHIELD
6
SHIELD
7
SHIELD
8
SHIELD
9
J2
JPD1135-509-7F
GND
Texas Instruments NDA Restrictions
PWR_EN
0
R39
0
R118
Figure 9-3. TPS65994EVM Power Supplies
www.ti.com TPS65994EVM Schematics
SLVUBM1C – JANUARY 2019 – REVISED JANUARY 2021
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TPS65994 EVM User Guide 21
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