I'm looking to use the Diodes Inc PAM2863 DC-DC LED driver in a project.
The datasheet gives a V=IR method for setting the average output current with an external resistor, where Iout = 0.1 / Rs.
However, it then says,
"The above values assume that the VSET pin is floating and at a nominal voltage of VREF (2.5V). Note that Rs = 0.1Ω is the minimum allowed value of sense resistor under these conditions to maintain switch current below the specified maximum value. It is possible to use different values of Rs if the VSET pin is driven from an external voltage."
It doesn't give any other formula for setting the output current with a different voltage on VSET, and my microcontroller will be sending 5V.
How would I adjust the current formula to find the new resistor value?
I need to supply more than 1 amp, so I can't just reduce the signal voltage.
Thanks in advance