Resistor divider not accurate of Load Switch for Peripherals on i.MX8QXP MEK board.

cancel
Showing results for 
Search instead for 
Did you mean: 

Resistor divider not accurate of Load Switch for Peripherals on i.MX8QXP MEK board.

88 Views
Contributor II

Resistor divider not accurate of Load Switch for Peripherals on i.MX8QXP MEK board.

pastedImage_3.png

pastedImage_2.png

Can you help to give a explaination on it?

best wishes,

Wenwen

0 Kudos
2 Replies

23 Views
NXP TechSupport
NXP TechSupport

Hi Wen,

   Vgs=3.3x10/(47+10)-3.3 = -2.72V

 

B.R,

Rita

0 Kudos

23 Views
Contributor II

Hi Rita,

The worst case to OPEN this PMOS shoule be VGS<-3V, if we only have a -2.7V on Gate pin, the MOSFET will keep closed. So this circuit will not work. Please check, Thanks!

Regards,

Wenwen

0 Kudos