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STUSB1602 bảng dữ liệu(PDF) 18 Page - STMicroelectronics

tên linh kiện STUSB1602
Giải thích chi tiết về linh kiện  Power hubs and docking stations
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
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STUSB1602 bảng dữ liệu(HTML) 18 Page - STMicroelectronics

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Features description
STUSB1602
18/55
DocID028319 Rev 2
3.4.6
VCONN power switches
Features
The STUSB1602 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 4. 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. 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.



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