about S32K312 STANDBY CURRENT

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about S32K312 STANDBY CURRENT

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teddywang
Contributor I

Hi Sir

  I test the S32K312 standby code S32K312_GPIO_Wkup_S32DS_3_4_RTD_LLD_2_0 ,the current is about 400uA,it's different from DS 40uA,my demo is S32K312EVB-Q172,the test place is R303's voltage,jumper J10 is open

 

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Senlent
NXP TechSupport
NXP TechSupport

Hi@teddywang

I didn't test your code, but I have a summary of similar issues, hope this is useful for you

Senlent_0-1684735591292.png

1.Remove R303 resisor and shunt on J10, and the connect the multimeter on J10 for current measurement.

2.Change the shunt on J18 header to 1-2 to for 5V supply and 2-3 for 3.3V supply.

 

Test Result(not the demo project your provided)

a.current in RUN mode(3.3V supply) = 72.4mA.

b.current in STANDBY mode (3.3V supply) = 46.7uA.

c.current in RUN mode (5.0V supply) = 72.9mA.

d.current in STANDBY mode (5.0V supply) = 355.9uA.

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