There are a couple of different ways to do brightness control and also to have less than a volt at the FB pin to reduce the power dissipation in the sense resistor. Please refer to the reference design ( www.ti.com/.../PMP10596 ) that showcases all those…
Other Parts Discussed in Thread: LM46002 , TPS92510 , TPS92512 , TPS92513 This is the continuation of a discussion that started in the Simple Switcher forum. I asked about using the LM46002 as a constant-current LED driver, and was directed to this document…