Bq20z95 Layout Query

Deepak Bansal

1. What does below marked(red) area, represent in z95 schematic:

2. While designing layout what should be recommended minimum distance two points: in SMBus connector, Cells connector (4P-1N)?

over 13 years ago

0 Chase7071949597 over 13 years ago

TI__Genius 10235 points

1. Those are spark gaps. They are used for extra ESD protection.

2. These rules should be specified by your layout tool. It should tell in the DRC when you have two points too close together. For devices, the minimum distance is usually determined by the package size, though. The devices shouldn't be overlapping or touching usually.

0 Deepak Bansal over 13 years ago in reply to Chase7071949597

Expert 2395 points

Chase,

How to implement spark gaps in layout. Any AN explaining this.

Regards

Deepak

0 Chase7071949597 over 13 years ago in reply to Deepak Bansal

TI__Genius 10235 points

The spark gaps are simply a component in the TI parts library. They are maintained by our library manager. I have attached the layout file for the z95, so if you download a PCAD layout viewer you should be able to measure the dimensions and make your own spark gap for your library.

HPA246B.pcb

0 Deepak Bansal over 13 years ago in reply to Chase7071949597

Expert 2395 points

Thanks Chase for your kind support.

Regards

Deepak

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Bq20z95 Layout Query