Texas Instruments LM3447 Flyback Controller for LED Lighting Evaluation Module Board LM3447-A19-230VEVM LM3447-A19-230VEVM 데이터 시트
제품 코드
LM3447-A19-230VEVM
User's Guide
SLUU978 – June 2012
LM3447-A19-230VEVM is a Phase-Dimmable, Primary-Side
Regulated LED Driver
1
Introduction
The LM3447-A19-230VEVM is a 10-W, 230-V
AC
isolated dimmable LED driver whose form factor intended
for A19 and R27 applications.
2
Description
The LM3447-A19-230VEVM is a primary-side power regulated PFC controller used for commercial and
residential phase-cut dimmer compatible LED lamp drivers. The LM3447-A19-230VEVM uses fixed
frequency valley switching operation resulting in discontinuous current operation.
residential phase-cut dimmer compatible LED lamp drivers. The LM3447-A19-230VEVM 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
SLUU978 – June 2012
LM3447-A19-230VEVM is a Phase-Dimmable, Primary-Side Regulated LED
Driver
Copyright © 2012, Texas Instruments Incorporated