GPIO: Problem leak current while default power up

キャンセル
次の結果を表示 
表示  限定  | 次の代わりに検索 
もしかして: 

GPIO: Problem leak current while default power up

ソリューションへジャンプ
927件の閲覧回数
neusch
Contributor II

pastedImage_0.png

Have the i.MX6 only internal 100k pull-up or additional a diode ?

Is it the only way to solve the problem, by use a lot of Level-Shifter or Switch with trie-status ?

ラベル(1)
0 件の賞賛
返信
1 解決策
835件の閲覧回数
igorpadykov
NXP Employee
NXP Employee

Hi Mathias

current through 1K should be limited to 1-2mA

Best regards

igor

元の投稿で解決策を見る

0 件の賞賛
返信
3 返答(返信)
835件の閲覧回数
igorpadykov
NXP Employee
NXP Employee

Hi Mathias

i.MX6 has esd protection diodes on pads.

>Is it the only way to solve the problem, by use a lot of Level-Shifter or Switch with trie-status ?

also one can try to set external MCU outputs as logic "0".

Best regards

igor

-----------------------------------------------------------------------------------------------------------------------

Note: If this post answers your question, please click the Correct Answer button. Thank you!

-----------------------------------------------------------------------------------------------------------------------

0 件の賞賛
返信
835件の閲覧回数
neusch
Contributor II

Hi Igor,

that is correct. But i can't ensure this while power up.

pastedImage_1.png

Can you say something to this?

0 件の賞賛
返信
836件の閲覧回数
igorpadykov
NXP Employee
NXP Employee

Hi Mathias

current through 1K should be limited to 1-2mA

Best regards

igor

0 件の賞賛
返信