Hi，
When using TPS61199, I found that the actual current did not match the set ISET current, the difference was 5 times.
If the ISET resistance is set to 50mA, the single-string LED current measured with a multimeter is only 10mA, while the ISET is set to 20mA and the single-string LED current measured is 4mA, resulting in a serious lack of brightness.
I checked the circuit Settings and found no abnormalities. Please help to check the possible causes .Attached is the circuit diagram. The difference from the typical circuit diagram in the specification is that N-MOS I chose a different component.
I have done a lot of analysis, but there is no change. Please help to see what the problem is. Many thanks~
