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USB low-full-high speed peripherals Forum Discussions

Anonymous
Not applicable

Does the square pad on the back side of the QFN package need to be connected to ground?

I'm playing with you design kit and want to ensure I get the design right. . .

Thanks

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1 Solution
Roy_Liu
Moderator
Moderator
Moderator
1000 replies posted 500 solutions authored 5 questions asked

Recommend to connect to ground. The below apps note has the guidlines of designing QFN package device.

AN72845 - Design Guidelines For Cypress Quad Flat No-Lead (QFN) Packaged Devices | Cypress Semicondu...

Roy Liu

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3 Replies
Roy_Liu
Moderator
Moderator
Moderator
1000 replies posted 500 solutions authored 5 questions asked

Recommend to connect to ground. The below apps note has the guidlines of designing QFN package device.

AN72845 - Design Guidelines For Cypress Quad Flat No-Lead (QFN) Packaged Devices | Cypress Semicondu...

Roy Liu
YangyangC_06
Employee
Employee
50 likes received 25 likes received 10 likes received

Usually the EPAD of an IC will be connected to GROUND of the PCB board. You could also check the Cadance PCB file if you have installed EZ-Serial SDK.

Anonymous
Not applicable

Thanks. The doc helped a lot.

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