Texas Instruments LM3447 Evaluation Board LM3447-PAR-230VEVM LM3447-PAR-230VEVM Data Sheet
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Product codes
LM3447-PAR-230VEVM
User's Guide
SLUUA02 – AUGUST 2012
LM3447-PAR-230VEVM is a Phase-Dimmable, Primary-
Side Regulated LED Driver
1
Introduction
The LM3447-PAR-230VEVM is a 16-W, 230-V
AC
isolated dimmable LED driver with form-factors intended
for BR and PAR applications.
2
Description
The LM3447-PAR-230VEVM is a primary-side power regulated PFC controller used for commercial and
residential phase-cut dimmer compatible LED lamp drivers. The LM3447-PAR-230VEVM uses fixed
frequency valley switching operation resulting in discontinuous current operation.
residential phase-cut dimmer compatible LED lamp drivers. The LM3447-PAR-230VEVM uses fixed
frequency valley switching operation resulting in discontinuous current operation.
2.1
Typical Applications
•
BR Bulb Form Factor
•
PAR Bulb Form Factor
2.2
Features
•
Primary-Side Control
•
Power Factor Correction
•
Leading and Trailing Edge Compatible
•
50:1 Dimming Range
•
Valley Switching with Fixed Frequency Discontinuous Operation
•
Thermal Foldback
•
Efficient Triac Hold Current Operation
•
LED Short and Open Circuit Protection
3
SLUUA02 – AUGUST 2012
LM3447-PAR-230VEVM is a Phase-Dimmable, Primary-Side Regulated LED
Driver
Copyright © 2012, Texas Instruments Incorporated