ISL1903
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Dimmable Buck LED Driver - AC Mains or DC Input LED Driver
DATASHEET
FN8285 Rev 1.
00 September 20, 2012
The ISL1903 is a high-performance, critical conduction mode (CrCM), single-ended buck LED driver controller.
It may be used with DC input converters, but also supports single-stage conversion of the AC mains to a constant current source with power factor correction (PFC).
The ISL1903 supports buck converter topologies, such as isolated forward converters or non-isolated source return buck converters.
Operation in CrCM allows near zero-
voltage switching (ZVS) for improv...