Texas Instruments LM3447 Evaluation Board LM3447-PAR-230VEVM LM3447-PAR-230VEVM 데이터 시트
제품 코드
LM3447-PAR-230VEVM
0
100
200
300
400
500
600
0.0
50.0
100.0
150.0
200.0
250.0
L
E
D
Cur
re
n
t
(m
A
)
Input Voltage (V
RMS
)
C004
Performance Data and Typical Characteristic Curves
8.10
Dimming Characteristics with Reverse Phase Dimmer
Figure 21. LED Current vs Conduction Angle
Figure 22. Dimmer at maximum brightness setting
(Ch1 - rectified line voltage (100V/div); Ch3 - line current (100mA/div); Ch4- LED current (100 mA/div))
Figure 23. Dimmer at half brightness setting
(Ch1 - rectified line voltage (100V/div); Ch3 - line current (100mA/div); Ch4- LED current (100 mA/div))
15
SLUUA02 – AUGUST 2012
LM3447-PAR-230VEVM is a Phase-Dimmable, Primary-Side Regulated LED
Driver
Copyright © 2012, Texas Instruments Incorporated