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RT8476
Two-Stage Hysteretic LED Driver Controller
General Description
The RT8476 is a two-stage controller with dual gate drivers consist of a Boost converter (first stage) and a Buck converter (second stage).
The advantage of the two-stage topology is highly compatible with ET (Electronic Transformer) in MR16 / AR111 lighting market field applications.
The first stage is a Boost converter for constant
voltage output with inductor peak current over current protection.
The second stage is a Buck converter for constant output current by typical constant peak current regulation.
The RT8476 is equipped with dual output gate drivers for external power
MOSFETs, suitable for higher power applic...