Dec 14, 2022
08:41 PM
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Dec 14, 2022
08:41 PM
I am designing an isolated gate driver using 6N137 and 1EDN7126GXTMA1, but I'm not sure if it's ok to connect the grounds. Because in the datasheet IN- is connected to SGND while VSS is connected to PGND.
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2 Replies
Dec 14, 2022
10:17 PM
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Dec 14, 2022
10:17 PM
Hello,
Both GNDs must be separated.
Dec 15, 2022
01:17 AM
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Dec 15, 2022
01:17 AM
Thanks for answering!
But since I use optocoupler, I already have one isolated ground "GND_DRV", and my isolated DC/DC use this ground too. How can I provide power to the drvier IC 1EDN7126GXTMA1, if the Vss is not connected to this ground, or I don't need an optocoupler anymore? This question troubles me a whole day. I'm a rookie, really appreaciate any reply, thank you