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STD Datasheet(Fiches technique) 3 Page - Texas Instruments

Numéro de pièce STD
Description  a Phase-Dimmable, Primary-Side Regulated LED Driver
Télécharger  26 Pages
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

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User's Guide
SLUU937 ? May 2012
LM3447-A19-120VEVM is a Phase-Dimmable, Primary-Side
Regulated LED Driver
1
Introduction
The LM3447-A19-120VEVM is a 10-W, 120-V
AC isolated dimmable LED driver whose form factor intended
for A19/R27 applications.
2
Description
The LM3447-A19-120VEVM is a primary-side power regulated PFC controller used for commercial and
residential phase-cut dimmer compatible LED lamp drivers. The LM3447-A19-120VEVM uses fixed
frequency valley switching operation resulting in discontinuous current operation.
2.1
Typical Applications
?
A19 Bulb Form Factor
?
R27 Bulb Form Factor
2.2
Features
?
Primary-Side Control
?
Leading and Trailing Edge Compatible
?
50:1 Dimming Range
?
Valley Switching
?
Fixed Frequency Discontinuous Operation
?
Thermal Foldback
?
PFC
?
Efficient Triac Hold Current Operation
?
LED Short and Open Circuit Detection
?
Thermal Foldback
?
Constant Power Operation
3
SLUU937 ? May 2012
LM3447-A19-120VEVM is a Phase-Dimmable, Primary-Side Regulated LED
Driver
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Copyright 2012, Texas Instruments Incorporated


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