Texas Instruments DRV8328 EVM Series, Руководство пользователя, Страница: 21 / 29

6.6 Power Stage and MOSFETs
PHASE B
PHASE C
PHASE A
100V
0.01uF
C19
2nF
50V
C25 DNP
10
R43
10
R49
OUTA OUTB OUTC
100V
2.2uF
C14
TP15
GHA_FET
GLA_FET
GHA
SHA
GLA
GHB
SHB
GLB
GHC
SHC
GLC
TP18
100V
0.01uF
C20
2nF
50V
C26 DNP
10
R44
10
R50
100V
2.2uF
C16
TP16
GHB_FET
GLB_FET
TP19
100V
0.01uF
C21
2nF
50V
C27 DNP
10
R45
10
R51
100V
2.2uF
C18
TP17
GHC_FET
GLC_FET
TP20
PVDD
D5
1N4448WX-TP
DNP
10
R46
DNP
10
R52
DNP
D8
1N4448WX-TP
DNP
10
R47
DNP
D6
1N4448WX-TP
DNP
10
R53
DNP
D9
1N4448WX-TP
DNP
10
R48
DNP
D7
1N4448WX-TP
DNP
10
R54
DNP
D10
1N4448WX-TP
DNP
NT1
Net-Tie
NT2
Net-Tie
NT3
Net-Tie
LSS
LSS
GHB
SHB
GLB
OUTB
GHA
SHA
GLA
OUTA
GHC
SHC
GLC
OUTC
SP
1.50
R55
DNP
100V
3900pF
C24 DNP
1.50
R56
DNP
100V
3900pF
C22
DNP
1.50
R57
DNP
100V
3900pF
C23
DNP
1.50
R41
DNP
100V
3900pF
C11
DNP
1.50
R40
DNP
100V
3900pF
C10
DNP
1.50
R42
DNP
100V
3900pF
C12
DNP
2nF
50V
C15 DNP
2nF
50V
C13 DNP
2nF
50V
C17 DNP
RC Snubber, HS Drain to LS Source cap, and GS Cap or Res
Populate diodes to control sink and source current independently
are all recommended, but optional, protection circuits
Route as differential pair
Kelvin connection to shunt
330pF
100V
C32 DNP
330pF
100V
C28
DNP
50V
0.01uF
C30
DNP
GND
GND
0
R58
0
R61
GND
External C_GS capacitors can be replaced with
0.001
R60
k ohm pull down resistors if desired GND
GND
GND
SN
1
3
4
C
S
D
1
8
5
3
6
K
T
T
T
Q4
1
3
4
C
S
D
1
8
5
3
6
K
T
T
T
Q1
1
3
4
C
S
D
1
8
5
3
6
K
T
T
T
Q5
1
3
4
C
S
D
1
8
5
3
6
K
T
T
T
Q2
1
3
4
C
S
D
1
8
5
3
6
K
T
T
T
Q3
1
3
4
C
S
D
1
8
5
3
6
K
T
T
T
Q6
SOA ISENA
Low pass filter
Place near BP header
GND
2200pF
C31
56
R59
OUT
1
GND
2
IN+
3
IN-
4
VS
5
INA180A1IDBVR
U2
0.1uF
C29
AVDD
GND
SP
SN
GND
Place as close to sense resistor as possible
ISENA
KO
TP32
TP33
Figure 6-7. Power stage and MOSFETs schematic
6.7 Main Supply Input
4.5-V to 60-V Operation
65V ABS MAX
PVDD
GND
80V
10uF
C38
1
2
J9
PVDD_IN
100V
390uF
C39
100V
390uF
C40
35A Rated connector
Figure 6-8. Main supply input schematic
6.8 Hall Sensor and Hall Power Selection
GND
GND
10.0k
R62
10.0k
R63
HALL_PWR
AVDD
GND GND
AVDD AVDD AVDD
1nF
16V
C42
1nF
16V
C43
1nF
16V
C44
1 2 3
J11
HALL_PWR_SEL
1
2
3
4
5
J10
HALL IN
HALL_PWR
10.0k
R64
TP21
HALL_PWR
HALLB
HALLC
HALLA
HALLC
HALLB
HALLA
TP22
GND
GND
Hall Sensor Power Select
+5V only allowed when launchpad generates voltage
TP31
EXT_HALL_PWR
Figure 6-9. Hall Sensor and Hall Power Selection schematic
www.ti.com Schematics
SLVUCD3A – NOVEMBER 2021 – REVISED AUGUST 2022
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DRV8328xEVM User's Guide 21
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