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EP5358LUA 100OHM resistor between PVIN and AVIN

AlexS
Employee
322 Views

hi

According to the datasheet, there is no requirements to put a 100OHM resistor between AVIN and PVIN but it appears in the evaluation board schematic. what is the purpose of this resistor?

is there a recommendation to put a capacitor on AVIN input in case a resistor is placed?

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Mostafa_Intel_AE
Employee
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Hello @AlexS ,

 

That 100R is used to add a delay to AVIN to improve the power on sequencing and avoid the UVLO if the PVIN is noisy.

I would recommend to add that RC filter for AVIN as <100R between PVIN and AVIN and  4.7uF between AVIN and GND if you expecting the input voltage is noisy.

 

Thanks,

Mostafa

 

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