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Using troubles about LT4417

ming1995 over 8 years ago

Hello~

As the following circuit shows, VCC+5V_USB is the 4^th power source, connecting the output of power management of diode.There are 3 5V input in the input port of LTC4417.

It’s normal when VCC+5V_USB prodive power with other circuit. However, if I cup VCC+5V_FIRST,VCC+5V_SECOND,VCC+5V_THIRD, 5V voltage will occurred in the VCC+5V_FIRST,VCC+5V_SECOND,VCC+5V_THIRD.

The LTC4417 PDF

Is this phenomance normal ?

Please kindly give me some advice ! Thanks.

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