Schematic; Figure 9. Schematic Of Steval-Isb68Rx - ST STEVAL-ISB68RX User Manual

7

Schematic

1
Coil
COIL
COIL
A
CPAR CS1 CS2
3.9nF 100nF 100nF
TP2 TP3
Uni-Directional Uni-Directional
D2 D3
SMAJ22A
SMAJ22A
PGND
CBT2 CBT1
BOOT2 BOOT1
47nF 47nF
CL2 CL1
CLAMP2 CLAMP1
22nF 22nF
CM2 CM1
B
COMM2 COMM1
22nF 22nF
STWLC68
VRECT C3
VRECT_S
VSSA C4
VSSA
VSSA C5
VSSA_S
C6
C
NC
CLAMP2 C7
CLAMP2
CLAMP1 C8
CLAMP1
VGATE D1
VGATE
VOUT D2
VOUT
VSSA D3
VSSA
VSSA D4
VSSA
VSSA D5
VSSA
D6
NC
COMM2 D7
COMM2
COMM1 D8
COMM1
VOUT E1
VOUT
VOUT E2
VOUT
VOUT E3
VOUT_S
VSSD E4
VSSD
D
GND
AGNDPGNDDGND
1
UM2681 - Rev 1
Figure 9.
2 3
Protections
R1 R2 R3
91R 91R 91R
TP6
CS3 CS4 CS5
100nF 100nF
R15
0.47R
U4
TP7
1 6
D D
2 5
D D
VGATE 3 4
PGND G S
STL7N6F7
GND GND
U1
STWLC68
J8 SDA
SDA
J7 INTB
INTB
J6 RSTB
RSTB
J5 BOOT_SEL R8
BOOT_SEL
J4 GPIO2 100K
GPOI2
J3 GPIO3
GPIO3
J2 GPIO4
GPIO4
J1 GPIO5 DGND
GPIO5
H8 SCL
SCL
H7 VSSD
VSSD
H6 VSSD
VSSD
H5 VSSD
VSSD
H4 VSSD
VSSD
H3 VSSD
VSSD_S
H2 GPIO0
GPIO0
H1 GPIO1
GPIO1
G8 V1V8
V1V8
G7 VSSA
VSSA
CBT V1V8 R10
4.7nF 1K
R11
NC
AGND
2 3
Schematic of STEVAL-ISB68RX
4 5
Decoupling caps
CR1 CR2 CR3 CR4
10uF 10uF 10uF 100nF
AGND
CO1 CO2 CO3 CO4
10uF 10uF 10uF 100nF
AGND
TP4 TP5
C3 C4 C5 C6
1uF 100nF 4.7uF 100nF
AGND AGND
DC mode
STWLC68 is working without TX
J3
D4
VOUT VBUS
STPS1L60ZFY
USB-I2C convertor
U2
MCP_RSTB 1
GP0
MCP_INTB 2
GP1
RST 3
RST
4
URx
MCP2221
D8
S1
C1 D5 LED
SW-SPST
100nF LED
R13
R14
470R
220R
GND GND
4 5
6 7
Connectors
P5
GND
12
1
VRECT 11
VOUT 2
10
3
4
Header 4
VRECT P3
1
1
VOUT
P4
1
1
PGND
Header 12
PGND
Pull up resistors RESET
R6
10K
RSTB
Q1
MCP_RSTB
1 G FDV303N
R4 R5 R17
4.7K 4.7K 4.7K
R16
10K
PGND
3.3V LDO
U5
VBUS 1 5
VIN VOUT
3 4
INHIBIT NC
C7 C2
LD2981
1uF
100nF
GND GND
GND
GND
U3
12
D+ 1 6
11 I/O1 I/O1
D- 2 5
10 GND VBUS
VUSB 3 4
9 I/O2 I/O2
SCL
C9 USBLC6-2SC6
470nF
GND
GND P2
MCP_INTB INTB
1 5
MCP_SCL SCL
2 6
MCP_SDA SDA
3 7
4 8
D6
LED
Header 4X2A
I2C communication GND GND
R12
Title
220R
STEVAL-ISB68RX
Size Number
VDD
A3
Date: 20.1.2020
File: C:\Users\..\STWLC68 evaluation board steval v3.1.SchDoc
6 7
UM2681
Schematic
8
PGND
RSTB
V5V0
DFT
9
A
INTB
8
SDA
7
SCL
6
GPIO4
5
GPIO3
4
GPIO2
3
GPIO1
2
GPIO0
1
LED
R7
100R
B
D1
LED0
VDD
C8
2.2uF
GND
C
P1
VBUS 1
VBUS
2
D-
3
D+
4
ID
5
GND
Shell
Shield
MicroUSB
C10 R9
100pF 1M
GND GND GND
D
Revision
v2.0
Sheet of
Drawn By:
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