Texas Instruments LM3447 Flyback Controller for LED Lighting Evaluation Module Board LM3447-A19-230VEVM LM3447-A19-230VEVM 데이터 시트
제품 코드
LM3447-A19-230VEVM
Turn-On Angle vs. Output Current
0
50
100
150
200
250
300
5
55
105
155
Turn-On Angle (degrees)
O
u
tp
u
t
C
u
rr
e
n
t
(m
A
)
Performance Data and Typical Characteristic Curves
7.6
Switch Node Voltage Valley Switching
Figure 9. Switch Node Waveform
(Ch4 - LED current Ch3 - switch node Ch2 - rectified line voltage)
7.7
Triac Dimmer LED Current vs Conduction Angle
Figure 10. LED Current vs Conduction Angle
11
SLUU978 – June 2012
LM3447-A19-230VEVM is a Phase-Dimmable, Primary-Side Regulated LED
Driver
Copyright © 2012, Texas Instruments Incorporated