BQ27220: Bin pin connection

Part Number: BQ27220

Hi Sir,

My customer is using BQ25618 and BQ27220(system side) on their system.

And both of BQ25618 and BQ27220 have temperature sensing pin, I am wondering how to connect both of them?

On BQ27220, spec say that it could be connect to BIN pin directly if there is a 10K thermister Semitec NTC 103AT, but on BQ25618 it need a external resistor on TS pin.

I think the TS pin of battery should connect to BQ25618 or BQ27220, right?

could you tech me how to connect it? 

Thanks,

Patrick