RT8479B Two-Stage Hysteretic LED Driver

Richtek

Description

® RT8479B Two-Stage Hysteretic LED Driver with Internal MOSFETs General .
The RT8479B is a two-stage controller with dual MOSFETs and consists of a Boost converter (first stage) and a Buck converter (second stage).

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Datasheet Specifications

Part number: RT8479B
Manufacturer: Richtek
File Size: 135.63 KB
Datasheet: RT8479B-Richtek.pdf
Description: Two-Stage Hysteretic LED Driver

Features

* Two-Stage Topology (Boost + Buck)
* Dual MOSFETs Inside
* Wide Input Voltage Range : 4.5V to 36V
* Excellent Power Factor
* Programmable Boost Output Voltage
* Independent Dual Stage Function
* Programmable LED current with ±5% LED Current Accuracy
* Input Under-Vol

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 internal power

RT8479B Distributors

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RT8479B Two-Stage Hysteretic LED Driver Richtek

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