Community Translation - FR Do you know +B input?

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cross mob
keni_4440091
Level 7
Level 7
500 replies posted 100 solutions authored 50 solutions authored

Hi

Don't know whether I can translate this topic is little old one, but permit to do it as reference information.

Thanks and regards,

Nino

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English:

FR Do you know +B input? バージョン 3                    

Answer:

Generally to input higher voltage than Vcc of CPU to port is not guaranteed. But +12 voltage for automotive can be inputted to port directly by restricting current.
Please confirm detailed information of current restriction value and etc. for this specification with datasheet.

+B Input (individual corresponding)
+B input port with external resister (for current control)

Sample recommended circuit

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In Japanese:

タイトル:

FRで+B入力できるってご存じ?

質問:

FRにある汎用ポートに+B電圧(12V)を印加できますか?

回答:

基本的にCPUのVCCよりも高い電圧をポートに入力することは保証されません。しかし、車載において電流を制限する事でポートに直接12V電位を入力することができます。

データシートの電流仕様に関して電流制限の詳細な情報などをご確認下さい。

+B入力(関連性のある各々)

外部抵抗(電流制限用)と+B入力ポート

推奨回路例

1.gif

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1 Reply
JennaJo
Moderator
Moderator
Moderator
1000 replies posted 750 replies posted 500 replies posted

Hello, Nino-san

confirm for the topic.

We receive your translation, it will be published to KBA to Community.

After upload, You will receive the points as the word of KBA.

Due to the current volume of works, Please bear with me for the delayed the response,

Thanks for your contribution to CDC!

Will keep you update the status.

Thanks,

Jenna Jo

Jenna Jo
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