Other Parts Discussed in Thread: OPA541
I am working on a design using the OPA548. The current limit should be around 1.5A, so I selected a 33kR resistor.
On the first page of the datasheet it is stated that a 1/4W resistor should be used for this, I was wondering why this is required.
The output current of the ILIM pin is limited by the 13750R internal resistor. So when I apply a 33kR resistor, the power dissipation in this resistor will only be ~330uW.
Could you please explain why this 1/4W resistor is required?