Cirrus Logic CS1680 cascade boost-buck dimmable LED driver ICs are specially designed for the 12V halogen lamp-replacement market. Developed using Cirrus Logic proprietary intelligent digital control, CS1680 delivers exceptional single-lamp and multi-lamp transformer compatibility for
non-dimmer systems and dimmer systems coupled with electronic and
magnetic low-voltage transformers. The integrated continuous conduction mode (CCM) boost converter
provides transformer and dimmer compatibility. An
adaptive digital algorithm controls the boost stage and dimmer
compatibility operation mode to enable flicker-free operation down to 5%
output current with leading-edge and trailing-edge dimmers. The Cirrus Logic CS1680 Dimmable LED Driver ICs are ideal for MR16 lamps and all 12VAC/VDC low-voltage lighting applications.