Boostxl-Drv8305Evm Schematic - Texas Instruments BOOSTXL-DRV8305EVM User Manual

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5.5

BOOSTXL-DRV8305EVM Schematic

Figure 13 shows the BOOSTXL-DRV8305EVM schematic.
DRV8305
U1
1µF C1
AVDD
15
AVDD
1µF C3
DVDD
46
DVDD
PVDD
41
PVDD
nFAULT
8
FAULT
GND C8 SCLK
12
SCLK
4.7µF SDI 10
SDI
GND SDO 11
SDO
SCS 9
SCS
GND EN_GATE 1
EN_GATE
INH_A 2
INH_A
3.3V INL_A 3
INL_A
D1 INH_B 4
INH_B
R3 Red
10k INL_B
5
INL_B
R7
330
nFAULT
INH_C 6
INH_C
INL_C 7
INL_C
ISEN_A 16
SO1
PVDD ISEN_B 17
SO2
C15 ISEN_C
18
SO3
2.2µF
37
VCP_LSD
C17
38
VCPH
1µF
DRV8305NPHPQ1
GND
BOOSTERPACK -> LAUNCHPAD
3.3V J1
2 1
4 3
nFAULT VSEN_A
6 5
8 7 VSEN_B
10 9 VSEN_C
12 11 VSEN_PVDD GND
SCLK R17
14 13
R18
16 15
18 17 R19
20 19
C23
C24
C25
GND
GND
GND
SLVUAI8A – August 2015 – Revised June 2017
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C2
0.047µF
43
CP1H
42
CP1L
C7 3.3V
39 0.047µF 3.3V
CP2H
40
CP2L
3.3V R1 C9
47 WAKE 10k 1µF
WAKE
48
VREG/VREF
13 PWRGD PVDD
PWRGD
GND
R2
44
VDRAIN
100
36 GH_A
GH_A
35 SH_A
SH_A
GL_A
33
GL_A
34 SL_A
SL_A
29 GH_B
GH_B
SL_B
31
SL_B
32 GL_B
GL_B
SH_B
30
SH_B
28 GH_C
GH_C
27 SH_C
SH_C
GL_C
25
GL_C
SN1
26 SL_C
SL_C
C13
23 SP1
SN1
24
SP1
SN2
21
SN2
22 C14
SP2
SP2
19
SN3
SN3
20
SP3
14 C16
GND
45 SP3
GND
49
PAD
GND
J2
INH_A
2 1
INL_A SCS
4 3
INH_B
6 5
INL_B 8 7
INH_C 10 9 PWRGD GND
INL_C 12 11 SDI
56 ISEN_A SDO
14 13
56 ISEN_B EN_GATE
16 15
56 ISEN_C 18 17 WAKE
20 19
Figure 13. BOOSTXL-DRV8305EVM Schematic
Copyright © 2015–2017, Texas Instruments Incorporated
HALF-BRIDGES & BACK-EMF SENSE
PVDD
C4
Q1
1µF
GH_A 4 GH_B
GND
NT1
SH_A MOT_A SH_B
1
Q4
GL_A 4 GL_B
NT4
SL_A SL_B
NT7
SN1 SN2
R4
0.007
NT10
SP1 SP2
GND
R8
62.0k
VSEN_A
R11 C10
4.99k 0.1µF
GND
CONNECTORS
PVDD
J3 J4
R14
1 3 MOT_A
C18 C19
62.0k MOT_B
2 330µF 330µF 2
VSEN_PVDD MOT_C
1
R16 C22
4.99k 0.1µF
GND
GND
3.3V
VSEN_PVDD VSEN_C
D2
VSEN_A VSEN_B
GND
Detailed Hardware Description
PVDD PVDD
C5 C6
Q2 Q3
1µF 1µF
4 GH_C 4
GND GND
NT2 NT3
MOT_B SH_C MOT_C
Q5 Q6
4 GL_C 4
NT5 NT6
SL_C
NT8 NT9
SN3
R5 R6
0.007 0.007
NT11 NT12
SP3
GND GND
R9
62.0k
VSEN_B VSEN_C
R12 C11
4.99k 0.1µF
GND GND
3.3V REGULATOR
L1
15uH
0.33µF
C26
PVDD U2
D4
5 1
VIN CB
C20
1µF
4 6
SHDN SW
GND
2 3
GND FB
LMR16006XDDC
GND
GND
BOOSTXL-DRV8305EVM User's Guide
R10
62.0k
R13 C12
4.99k 0.1µF
3.3V
C21
22µF
GND
R20
3.3V
68.0k
D3
R21
Green
20.0k
R15
330
GND
11