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STUSB1702 Folha de dados(PDF) 21 Page - STMicroelectronics

Nome de Peças STUSB1702
Descrição Electrónicos  USB Type-CTM source controller with TX/RX line driver and BMC
PDF  38 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STUSB1702 Folha de dados(HTML) 21 Page - STMicroelectronics

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7.2
USB Type-C typical applications
7.2.1
Source type application schematic
Figure 8. Typical STUSB1702 implementation in source type application
C2
1µF
GND
5V
SCL
SDA
R5
10K
A_B_Side
ALERT#
C1
10µF
R2
1K
VBUS
R1
10K
3V3
R6
10K
R7
10K
R8
10K
VI O
GND
C5
10µF
GND
To Super Speed M UX
GND
R4
10K
R9
10K
GND
VBUS
CC1
CC2
Type C connector
GND
Application
Processor
Power
STL9P3LLH6
STL9P3LLH6
Management
Unit
To GND/VIO
C3
1µF
C4
1µF
ADDR0
RESET
R12
100K
GND
D2
D1
GND
GND
R3
10K
24
VReg_2V7 23
VReg_1V2 21
A_B_SIDE
17
SCL
7
SDA
8
RESET
6
GND
10
CC2GND 5
CC2
4
CC1
2
CC1GND
1
VCONN
3
VBUS_SENSE 18
AL ERT#
9
EP
0
MOSI
11
NSS
12
ADDR0
13
MISO
14
TX_EN
15
SCLK
16
U1
STUSB1702
R11
10K
R10
10K
TX_EN
SCLK
NSS
MOSI
MI SO
GND
SSI
I²C
SPC5 PowerArchitecture
32-bit MCUs
VI O
Table 15. Default setting for a source type application
I²C register
address
I²C register field name
I²C register reset value/description
Customization type
0Eh
START_UP_POWER_MODE
0b: device starts in normal mode
NVM/SW
18h
CC_CURRENT_ADVERTISED
01b: 1.5 A
NVM/SW
18h
CC_VCONN_DISCHARGE_EN
0b: VCONN discharge disabled on CC pin
NVM/SW
18h
CC_VCONN_SUPPLY_EN
1b: VCONN supply capability enabled on CC
pin
NVM/SW
1Eh
CC_VCONN_SWITCH_ILIM
0000b: 350 mA
NVM/SW
20h
VCONN_MONITORING_EN
1b: enables UVLO threshold detection on
VCONN pin
SW
20h
VCONN_UVLO_THRESHOLD
0b: high UVLO threshold of 4.65 V
SW
22h
SHIFT_HIGH_VBUS_LIMIT_SOURCE
0101b: in source power role, shifts nominal
high voltage limit by +5% of VBUS
NVM/SW
22h
SHIFT_LOW_VBUS_LIMIT_SOURCE
0101b: in source power role, shifts nominal
low voltage limit by -5% of VBUS
NVM/SW
25h
VBUS_DISCHARGE_TIME_TO_0V
1010b: 840 ms discharge time
NVM/SW
25h
VBUS_DISCHARGE_TIME_TRANSITION 1010b: 200 ms discharge time
NVM/SW
26h
VBUS_DISCHARGE_EN
1b: enables the VBUS discharge path
NVM/SW
2Eh
VDD_OVLO_DISABLE
0b: enables OVLO threshold detection on
VDD pin
SW
STUSB1702
USB Type-C typical applications
DS12664 - Rev 1
page 21/38



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