Other Parts Discussed in Thread: TPS61194-Q1, TPS61193-Q1
For the devices LP8861-Q1, TPS61193-Q1, TPS61194-Q1, the maximum current for the LED current sinks is controlled with external Riset resistor at ISET pin. But there are two different equations to calculate Iset current and Riset resistor.
In the datasheet, the equation is Riset= 2342 / (IOUT-2.5). But in the EVM user's guide, the equation is Riset=2000*Vbg/IOUT. In my application, if the required channel current is 20mA, the Riset can be 120kohm or 134kohm. Which one is right?