About the Voltage on SG1 pin of CD1030

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About the Voltage on SG1 pin of CD1030

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todd_jhun
Contributor I

Dear all, 

I setted  SG1 pin into Wake-up Disabled.

During LPM(Low Power Mode) mode, the measured voltage on SG1 pin is about 7V. 

SG1 pin.png

I don't understnad why voltage is measured on this pin.  

How can I control to disconnect with VBATP node?

Best regards,

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TomasVaverka
NXP TechSupport
NXP TechSupport

Dear Todd,

In LPM, the current source is in polling mode, it is active periodic. If a SGx is set as wake-up disabled, this pin is not polling, that means the current source is not enabled on this channel. However, there would be residual voltage on this pin, the voltage on this pin may drop very slow. You can try to discharge it and measure the voltage again.

Best regards,

Tomas

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