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RT8479B

Part Number	RT8479B
Manufacturer	Richtek
Description	Two-Stage Hysteretic LED Driver
Published	May 27, 2016
Detailed Description	® RT8479B Two-Stage Hysteretic LED Driver with Internal MOSFETs General Description The RT8479B is a two-stage control...
Datasheet	RT8479B PDF File

Overview

® RT8479B Two-Stage Hysteretic LED Driver with Internal MOSFETs General Description The RT8479B is a two-stage controller with dual MOSFETs and consists of a Boost converter (first stage) and a Buck converter (second stage).
The advantage of two-stage topology is highly compatible with ET (Electronic Transformer) and extremely high Power Factor performance in MR16 / AR111 lighting market fields 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 RT8479B is equipped with dual output gate drivers for i...

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