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Question, i.MX28 schottky diode between BATTERY and VDD4P2

Question asked by AVNET JAPAN FAE (team share account) on Feb 24, 2016
Latest reply on Feb 25, 2016 by Artur Petukhov

Dear all,

 

I would like to ask about the reason why the schottky diode is needed between BATTERY and VDD4P2 pins.

In your application note AN4199, figure-10 states that schottky diode is located between BATTERY and VDD4P2 pins.

Could you show me the exact reason why the diode is needed?

 

Thanks,

Miyamoto

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