Home
ST
Motherboard
STEVAL-WBC2TX70
ST STEVAL-WBC2TX70 User Manual
5
of 1
of 1 rating
84 pages
Give review
Manual
Specs
To Next Page
To Next Page
To Previous Page
To Previous Page
Loading...
Figure 32.
STEV
AL-WBC2TX70 circuit schematic (4 of 6)
GN
D P
OW
ER
COIL POWER
TANK
D
CD
C
SH
O
R
T
R4
13
10
K
L
4
00
1u
H
R4
03
0
R
R4
08
0.
01
0R
0.
1%
1
W
R4
04
0
R
C4
00
X
7R
50
V
10
0NF
G
S
D
5
4
1
6
7
8
2
3
Q4
00
S
TL20N6
F7
R4
00
0
R
R4
01
NP
G
S
D
5
4
1
6
7
8
2
3
Q4
01
S
TL20N6
F7
R4
15
10
K
R4
12
10
K
R4
14
10
K
G
S
D
5
4
1
6
7
8
2
3
Q4
03
S
TL20N6
F7
R4
07
0 R
G
S
D
5
4
1
6
7
8
2
3
Q4
02
S
TL20N6
F7
C4
06
NP
C4
12
X
7R
50
V
5.
6NF
R4
05
0
R
R4
17
0
R
C4
16
C0
G
50
V
NP
1
TP
4
01
WIRE_
S
O
L
DER
1
TP
4
00
WIRE_
S
O
L
DER
C4
07
C0
G
10
0V
10
0NF
R4
10
30
K
S
D
G
5
4
1
6
7
8
2
3
Q4
04
S
TL42P
6LL
F6
60
V_0.0
23
R_
42
A_P
-Ch
a
n
ne
l
10K
10K
1
2
3
Q4
05
P
DTC1
14
E
U,13
5
R4
11
30
K
C4
15
X
7R
10
0V
5.
6NF
C4
01
X
7R
50
V
10
UF
C4
02
X
7R
50
V
10
UF
C4
10
X
7R
50
V
10
UF
C4
04
X
7R
50
V
10
UF
C4
03
X
7R
50
V
10
0NF
C4
11
X
7R
50
V
10
UF
C4
05
X
7R
50
V
10
UF
D40
0
10
V
G
S
D
5
4
1
6
7
8
2
3
Q4
06
S
TL6N3LL
H6
30
V_0.0
21
R_
6A_N-Ch
a
n
ne
l
C4
08
C0
G
10
0V
10
0NF
C4
09
C0
G
10
0V
10
0NF
R4
09
0
R
C4
32
X
7R
50
V
10
0NF
R4
02
NP
C4
14
NP
R4
06
NP
C4
13
NP
C4
17
X
7R
50
V
10
0NF
V
DC
DC
GD_
HS
3
GD_
L
S
3
GD_
L
S
2
GD_
HS
2
BRIDGE_
I
S
NS
_
P
S
W
_HS
2
S
W
_HS
3
BRIDGE_
I
S
NS
_
N
V
BR
I
DGE
RING_NO
DE
DCDC
_S
HO
RT
VI
N
QF
_DR
I
VER
QF
_S
HOR
T
Figure 33.
STEV
AL-WBC2TX70 circuit schematic (5 of 6)
F
A
N
C
O
NT
R
O
L
p
o
we
r
s
u
p
p
l
y for
F
AN
R5
07
10
K
C5
04
16
V
10
UF
X7R
R5
06
47
K
R5
05
10
K
1
2
3
Q5
00
LM
BT22
22
AWT1G
R5
09
10
K
D50
0
5V
C5
05
C0
G
50
V
1NF
1
2
3
4
5
6
F5
00
R5
08
1 K
1
OUT
2
S
Y
NCH
3
EN
4
CO
MP
5
FB
6
FS
W
7
GND
8
VCC
9
GND
U50
0
L798
6ATR
C5
00
16
V
10
UF
X5R
C5
02
X7R
50
V
10
0NF
R5
04
4.7
K
1%
R5
00
57
6 R
1%
R5
03
16
0 R
R5
02
51
0 R
C5
03
X7R
50V
22
0P
F
C5
06
X7R
16V
82
NF
C5
07
X7R
50
V
8.2
NF
C5
08
X7R
16
V
10
NF
R5
10
0 R
08
05
D50
1
LM
BR2
40
ET1
G
L500
10
uH
R5
01
38
.3
K
1%
BUCK_5
V5
FAN
FAN_P
W
M
FAN_F
B
3V3
BUCK_5
V5
FAN_P
W
M
BUCK_5
V5
VI
N
UM3286
-
Rev 1
page 47/84
UM3286
STEVAL-WBC2TX70 description
46
48
Table of Contents
Figure 1. STEVAL-WBC2TX70 Evaluation Board
1
1 Getting Started
2
Table 1. Reference Design Specifications
3
2 Reference Design Specifications
3
Figure 2. Board Overview
4
Test Points
6
3 Overview of the Board
4
Table 2. Test Points
6
Figure 3. Test Points
6
Basic Operating Modes
7
Status Leds
7
Table 3. Status Leds Meaning
7
Figure 4. Block Diagram
8
Bridge Current Monitor
9
Bridge Voltage Monitor
9
DC-DC Current Monitor
9
Onboard Voltage Sources
9
DC-DC Buck Converter
9
The 3.3 V LDO
9
The 1.8 V LDO
9
Voltage Doubler
9
Ring Voltage Monitor
9
Chip Reset
10
Power up Sequence
10
Protections Overview
10
Main Overcurrent Protection (OCP)
10
Overvoltage Protection (OVP)
10
Voltage Drop
11
RX Overvoltage Protection - Static/Dynamic OVP, Currentdrop OVP
11
Overtemperature Protection (OVTP)
11
Ntc
11
Qfod
11
Uvlo
10
Foreign Object Detection (FOD)
11
Presence Detection
11
Comparing to Reference Q Factor
12
Power Balance
12
EPT Reason
12
WPC Qi Wireless Power Transfer
12
Baseline and Extended Power Profiles
12
4 Device Description and Operation
8
Adc
8
Power Inverter
8
System Block Diagram
8
Figure 5. Difference between BPP and EPP Power Transfer Startup
12
Wireless Power Interface
14
Figure 6. ASK Modulation
15
Bidirectional Communication
14
ASK Communication
14
Figure 8. Example of Bit Encoding
15
Figure 9. Example of Byte Encoding
16
Figure 10. Format of the Three Defined Messages
17
Most Common Qi Communication Packets
17
Stlink
18
STLINK Drivers
18
Stm32Cube Programmer
18
Firmware Flash Programming
19
Figure 11. STLINK Parameters
19
Figure 12. Programming the Chip
19
Uart
20
Firmware Update Without GUI
20
UART Configuration
20
Figure 7. ASK Timing
15
FSK Communication
16
Figure 13. Bootloader Start
20
Table 4. Switch to Boot Mode
21
Table 5. Init in Bootloader
21
Table 6. Get Command
21
Table 9. Calibration Command
23
Figure 14. the Certificate Chain Process
24
Figure 15. the Authentication Process
24
Table 10. STSAFE-A110 Certificate Chain Elements
25
Fan Support
26
How to Acquire Official STSAFE-A110 Samples
26
Figure 16. the Initial State of the GUI
27
Info Page
28
Status Semaphore
28
The Qi Authentication Procedure
24
STSAFE-A110 Test Profile for STEVAL-WBC2TX70
25
Table 8. Memory Write Command
22
Table 7. Memory Erase Command
22
Bootloader and Boot Pin
23
Stsafe
23
STSAFE-A110 for Qi Authentication
23
5 Graphical User Interface (GUI)
27
Connecting STWBC2 to the GUI
27
Figure 17. Port Selection
28
Figure 18. Status Semaphore
28
Figure 19. Event Box
29
Table 11. Available Events
30
Device Metrics
33
Event Box
29
Figure 21. Input Power Supply Indication
33
Figure 20. Device Metrics
33
Figure 23. Rx Identification Data
35
Figure 24. Example of Captured Charts
36
Parameters Page
36
Table 12. Chart Controls and Shortcuts
36
Figure 25. Save and Load Buttons
37
Table 13. List of Configurable Parameters
37
Figure 26. Read and Write Operation Buttons
40
Figure 27. Save Button, Choosing of Saved Data Type and Save Dialog
40
Read/Write to Device
40
Traces Page
40
Using Traces for FOD Tuning Data Collection
40
Figure 28. Test Points
42
Current Drop OVP
43
Dynamic OVP
43
Ring Node Overvoltage
43
Figure 22. Device Information
35
Configuration File
37
Device Parameters
37
FW Page
41
Calibration
41
Loading the Firmware into an Empty Device
41
Obtaining the Firmware Update File
41
Updating Firmware of a Previously Programmed Device
41
Recommended Flow of Prototyping and Production
42
Protection Tuning
42
Foreign Object Detection
42
Static OVP
42
Rx Information
35
Tx Information
35
Charts Page
36
Chart Controls and Shortcuts
36
6 STEVAL-WBC2TX70 Description
44
Figure 29. STEVAL-WBC2TX70 Circuit Schematic (1 of 6)
44
Schematic Diagrams
44
Figure 30. STEVAL-WBC2TX70 Circuit Schematic (2 of 6)
45
Figure 31. STEVAL-WBC2TX70 Circuit Schematic (3 of 6)
46
Figure 32. STEVAL-WBC2TX70 Circuit Schematic (4 of 6)
47
Figure 33. STEVAL-WBC2TX70 Circuit Schematic (5 of 6)
47
Figure 34. STEVAL-WBC2TX70 Circuit Schematic (6 of 6)
48
Table 14. STEVAL-WBC2TX70 BOM
49
Component Assembly
54
Figure 35. Component Assembly
54
Figure 36. PCB Top Layer
55
Figure 37. PCB Inner1 Layer
55
STEVAL-WBC2TX70 PCB Layout
55
Figure 38. PCB Inner2 Layer
56
Figure 39. PCB Bottom Layer
56
Table 15. Basic Parameters
57
Figure 40. Device Power up
58
Power-Up Waveforms
58
Typical Performance Characteristics
58
Analog and Digital Ping
59
Figure 41. Analog and Digital Ping
59
Efficiency and Spatial Freedom in the XY Plane
60
Figure 42. Startup of EPP
60
Startup of EPP
60
Figure 43. Setup for Offset Test
61
Figure 44. X-Axis Offset Impact on Efficiency
61
Efficiency and Spatial Freedom in the Z-Axis
62
Figure 45. Y-Axis Offset Impact on Efficiency
62
Figure 46. Z-Axis Offset Impact on Efficiency
62
Thermal Performance
63
STWBC2 Default Configuration
57
Bill of Materials (BOM)
49
Figure 47. Thermal Performance
63
7 Designing a Wireless Power Transmitter Based on STEVAL-WBC2TX70
64
Evaluation Board
64
BOM Reduction Suggestions
64
Figure 48. Layer 1 High Power Tracks
64
Figure 49. Layer 4 GND
65
Figure 50. Placement of Input Connectors, Filtering, and Protections
66
VIN, Vbuck, and Vdoubler
67
Board Input Layout
66
Layout Guidelines
64
High Power Tracks
64
Ground Plane on Layer 4
65
Figure 51. Larger Tracks of DC-DC Buck, VIN
67
Figure 52. Green: DC-DC Buck Placement. Yellow: Capacitors Close to STWBC2 IC
68
Figure 53. VIN ISNS Routing
69
DC-DC Boost Circuit
70
Main Bridge Circuit
70
Figure 54. DC-DC Boost Circuit Routing
70
Figure 55. Main Bridge Circuit
70
Bridge ISNS Routing
71
DC-DC Short Circuit
71
Gate Drivers Routing
71
Q Factor Driver
71
VIN ISNS Routing
69
Figure 56. Bridge ISNS Routing
71
Figure 57. DC-DC Short Path through Q404
71
8 Board Versions
72
Table 16. STEVAL-WBC2TX70 Versions
72
9 Regulatory Compliance Information
73
10 References
74
11 Acronyms and Definition
75
Table 17. List of Acronyms
75
Revision History
76
Table 18. Document Revision History
76
5
Based on 1 rating
Ask a question
Give review
Questions and Answers:
Need help?
Do you have a question about the ST STEVAL-WBC2TX70 and is the answer not in the manual?
Ask a question
ST STEVAL-WBC2TX70 Specifications
General
Brand
ST
Model
STEVAL-WBC2TX70
Category
Motherboard
Language
English
Related product manuals
ST STEVAL-WBC86TX
78 pages
ST ST7 Series
14 pages
ST STM32G070RBT6
44 pages
ST STM32 Nucleo-64
44 pages
ST STM32H743I-EVAL
69 pages
ST STM32 Nucleo-32
37 pages
ST STM32F407 Series
50 pages
ST STM32F405 Series
50 pages
ST STM32G4 Nucleo-64
43 pages
ST STM32H7 Nucleo-144
50 pages
ST Nucleo STM32F302R8
18 pages
ST STM32 NUCLEO-F303K8
31 pages
To Next PageTo Next PageTo Previous PageTo Previous Page
Loading...
Need help?
General
