TJA1028 normal to sleep mode transition

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TJA1028 normal to sleep mode transition

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AbramGeorge
Contributor I

Hello there,

        I have a question regarding to timing to go to sleep mode from normal mode, The datasheet is mentioning tmsel min and tmsel max, but it is not clear if we should lower the Tx pin 1) inside the mode select window or 2) before it

AbramGeorge_0-1698758670669.png

 

 

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guoweisun
NXP TechSupport
NXP TechSupport

The TXD pin is sampled in the mode select window.

A transition to Standby mode is triggered if TXD is HIGH, or to Sleep mode if TXD is LOW.

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AbramGeorge
Contributor I

So to ensure going to sleep, Should I set TXD to LOW before the mode select window?

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guoweisun
NXP TechSupport
NXP TechSupport

Yes I think so!

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