Hello,
I am using TPS25833-Q1.
I design a basic Dual port Type-C charger. I set the Rlim value to 26.1k ohm to set the current 1.5A. And I also set the Rimon value to 4.7k ohm to make cable compansation. ( I set Rwire is equal to 100mohm. I did not use Mosfet).
An interesting thing is " Although Rlim value is stable, current is also change with Rimon value." Here is the datas that I measured:
RIMON: | 4.64K ohm | 4.7K ohm | 12.1k ohm | |
RLIM: | 26.1k | 26.1k | 26.1k |
Maximum Current to make Voltage Stable on 150m ohm Cable Resistance | 1.516A | 1.465A | 1.485A | |
Stable Voltage with 150m ohm Cable Resistance | 4.96V | 4.9897V | 5.27V |
Is it make sense?
Please find the schematic in the attachement. Actually, it is not my schematic but I copied every edge of it. Only differances are Rimon and Rlim values.
Regards,
Mehmet.6305.TIDM117 (7).PDF