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USB port voltage specifications for KUSB-3100 Series

問題:

USB port voltage specifications for KUSB-3100 Series

答案:

Product(s):

USB Modules: KUSB-3100 Series: KUSB-3100, KUSB-3102, KUSB-3108, KUSB-3116, KUSB-3160


Question:How is the USB port supply voltage specified?What is the minimum supply voltage for the PC USB port?What is the minimum supply voltage for the KUSB-3100 Series modules?


Answer:The High Power USB Port voltage must be between +4.75 to +5.25 volts.These are the specified requirements for the KUSB-3100 Series modules.The modules have been tested from 4.65V to 5.5V without any problems.In most cases the module will start down to 4.5V. However, it could be a problem with the series switch impedance on some laptops. The KUSB-3100 Series modules will typically use less than 400mA of the 500mA specification.

 


 Copyright 2003, Keithley Instruments, Inc.


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