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STUSB1600 Folha de dados(PDF) 18 Page - STMicroelectronics

Nome de Peças STUSB1600
Descrição Electrónicos  Power hubs and docking stations
PDF  69 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STUSB1600 Folha de dados(HTML) 18 Page - STMicroelectronics

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Features description
STUSB1600
18/69
DocID028937 Rev 1
3.3.6
VCONN power switches
Features
The STUSB1600 integrates two current limited high-side power switches with protection
that tolerates high voltage up to 22 V on the CC pins.
Each VCONN power switch presents the following features:
•
Soft-start to limit inrush current
•
Constant current mode overcurrent protection
•
Adjustable current limit
•
Thermal protection
•
Undervoltage and overvoltage protection
•
Reverse current and reverse voltage protection
Figure 3. VCONN to CC1 and CC2 power switch protection
Current limit programming
The current limit can be set within the range 100 mA to 600 mA by a step of 50 mA. The
default current limit is programmed through NVM programming (see Section 6: Start-up
configuration) and can be changed by software through the I2C interface (see Section 5.1:
Register description). At power-on or after a reset, the current limit takes the default value
preset in the NVM.
Fault management
The table below summarizes the different fault conditions that could occur during operation
of the switch and the associated responses. An I2C alert is generated when a fault condition
happens (see Section 5.1: Register description).



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