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TPS23880: Why every PSE chips share same I2C address in TPS23881EVM-083?

Part Number: TPS23880
Other Parts Discussed in Thread: TPS23881EVM-083, , TPS23881EVM-008, TPS23882, TPS23881

In TPS23881EVM-083  evaluation system, total 6 pieces of TPS23880, however they share same I2C address, A3~A1 pins are all tied to GND, only A4 is configurable through J2 jumper.

However in TPS23881EVM-008, A4~A1 are all configurable through 4 jumpers.

I wonder if all 6 TPS23880 share same I2C address, how GUI to download firmware to each chip and how the GUI access each register in each chip? How host distinguish each chip?

Now I need three TPS23880s on my board, which solution you suggest on I2C address setting? TPS23881EVM-083 or TPS23881EVM-008?