Infineon CY7110, Руководство пользователя

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User Guide 37 of 67 002-32601 Rev. *C
2021-12-02
EZ- PD™ PMG1 MCU prototyping kits guide
CY7110/CY7111/CY7112/CY7113
EZ- PD™ PMG1 prototyping kit system design
3.6 Load switch
3.6.1 USB PD sink port
For the power aspects of the USB PD sink Type-C connector on the kit, see the Power section . The CC1/CC2 and
D+/D- lines are routed from the Type-C connector to the EZ- PD™ PMG1 MCU. The USB PD contract negotiation,
charger detection, and data communication occur through these signal lines. These signals are susceptible to
ESD events; therefore, additional ESD diodes are added to the traces.
Figure 31
USB PD sink Type-C port
The USB PD voltage negotiated with the USB PD source can be measured from the VBUS_TYPE-C test point
(red) located on the PMG1 kit board at any time.
In the CY7111 EZ-PD ™ PMG1-S1 MCU kit, D+ bottom, D+ top, D- bottom, and D- top signals are routed to the
device in separate traces, but in CY7110, and CY7112 kits, the top and bottom D+/D- signals are shorted near the
Type-C connector. In PMG1-S1, there is an internal USB 2.0 analog mux present which routes the system D+ and
D- lines to the Type-C top or bottom port based on the CC (Type-C plug) orientation. See the EZ-
PD™ PMG1-S1
MCU datasheet [4] for details.
3.6.2 5-A load switch
CY7110, CY7111 and CY7112 kits support up to 100 W (20 V/5 A) USB PD contracts through the USB PD sink port.
The load switch supports maximum contract voltage (20 V) and maximum contract current (5 A).
CY7113 kit can support up to 140 W (28 V/5 A) USB PD contracts and the load switch on the CY113 kit can
support this power.
3.6.2.1 P-FET load switch
CY7110 and CY7111 kits have dual-P channel MOSFET as the load switch because the EZ- PD™ PMG1-S0 MCU and
EZ- PD™ PMG1-S1 MCU devices have integrated PFET gate drivers to drive external PFETs. IRF9358 is a dual P-
C26 2200pF
D-
D+
JMP2
USB_Hold
1
2
D8
E
S
D
1
3
1
-B
1
-W
0
2
0
1
D9
E
S
D
1
3
1
-B
1
-W
0
2
0
1
CC2 4
D-
CC1 4
J10
DX07S016JA3R1500
D-_B7
B7
D+_B6
B6
G
N
D
1
A1
MH1
MH1
MH2
MH2
MH3
MH3
MH4
MH4
S2
S2
S1
S1
G
N
D
B1
S
B
U
1
A8
S
B
U
2
B8
CC1
A5
CC2
B5
D-_A7
A7
D+_A6
A6
V
B
U
S
_
1
A4
V
B
U
S
_
2
B4
VBUS_TY PE-C
D+
R33 100K
D12
E
S
D
1
3
1
-B
1
-W
0
2
0
1
D11
E
S
D
1
3
1
-B
1
-W
0
2
0
1