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UCS2113 bảng dữ liệu(PDF) 14 Page - Microchip Technology

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UCS2113
DS20005680B-page 14
 2016-2021 Microchip Technology Inc. and its subsidiaries
3.0
PIN DESCRIPTION
Descriptions of the pins are listed in Table 3-1.
TABLE 3-1:
PIN FUNCTION TABLE
UCS2113
4x4 QFN
Symbol
Function
Pin Type
Connection Type if Pin
Not Used
1
PWR_EN1
Port power switch enable #1
DI
Connect to ground or VDD
(depending on the polarity
decoded via COMM_ILIM
pin)
2
GND
Ground
Power
N/A
3
BOOST#
Logic output for DC-DC converter voltage
increase (requires pull-up resistor)
OD
Connect to ground
4, 5
VBUS1
Port power switch #1 output (requires both
pins tied together)
High Power,
AIO
Leave open
6, 7
VS
Voltage input to port power switch VBUS1
(requires both pins
tied together)
High Power,
AIO
Connect to ground
8VDD
Common supply voltage
Power
N/A
9, 10
VS
Voltage input to port power switch VBUS2
(requires both pins
tied together)
High Power,
AIO
Connect to ground
11, 12
VBUS2
Port power switch #2 output (requires both
pins tied together)
High Power,
AIO
Leave open
13
COMM_ILIM Enables SMBus or Stand-Alone mode at
power-up. Hardware strap for maximum cur-
rent limit.
AIO
N/A
14
GND
Ground
Power
N/A
15
PWR_EN2
Port power switch enable #2
DI
Connect to ground or VDD
(depending on the polarity
decoded via COMM_ILIM
pin)
16
ALERT#2
Output fault ALERT for VBUS2 (requires
pull-up resistor)
OD
Connect to ground
17
SMCLK
SMCLK - SMBus clock input (requires pull-up
resistor)
DI
Connect to VPULLUP(or to
ground in Stand-Alone
mode)
18
SMDATA
SMDATA - SMBus data input/output (requires
pull-up resistor)
DIOD
Connect to VPULLUP (or to
ground in Stand-Alone
mode)
19
GND
Ground
Power
N/A
20
ALERT#1
Output fault ALERT for VBUS1 (requires
pull-up resistor)
OD
Connect to ground
21
EP
Exposed thermal pad. Must be connected to
electrical ground.
EP
N/A



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