Other Parts Discussed in Thread: TPS25810
Hi,
I am not sure the function of the current source connected with the CC pin. If this current source output ISO, or used for select the broadcast current, or for other
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Hi,
I am not sure the function of the current source connected with the CC pin. If this current source output ISO, or used for select the broadcast current, or for other
Hi, Jessica,
1. Yes, this current source is controlled by CHG and CHG_H. Set CHG as high to choose type-C broadcast function and set CHG_H to high/low to choose 3A/1.5A broadcast current. There's detailed description in datasheet, I attached it as below.
2. TPS25810 set power FET to saturation region to limit current, where the current will not change as VDS changes. From "8.2 Functional Block Diagram" in datasheet, you can know Ios is come from Vin power supply.
Regards,
Bob