LT3755 driver LED application circuit diagram

The voltage feedback pin of this circuit, referenced to ground, serves as the input to numerous LED protection circuits (such as open LED protection) and allows the converter to function as a constant voltage source. A frequency adjustment pin allows the user to set the frequency from 100kHz to 1MHz to optimize efficiency and performance while minimizing external component size. If external synchronization is required, the LT3755-1 can be selected, whose frequency range of 100kHz~1MHz can be synchronized to an external clock.