Texas Instruments LM3433 Evaluation Board LM3433SQ-14AEV/NOPB LM3433SQ-14AEV/NOPB 데이터 시트
제품 코드
LM3433SQ-14AEV/NOPB
0
1
2
3
4
5
6
7
0
10 20 30 40 50 60 70 80 90 100
DIM DUTY CYCLE (%)
AVER
AG
E
L
ED
C
U
R
R
EN
T
(
A
)
59
59.2
59.4
59.6
59.8
60
60.2
60.4
60.6
60.8
61
-40
-20
0
20
40
60
80
AMBIENT TEMPERATURE (°C)
V
S
E
N
S
E
(m
V
)
SNVS535C – OCTOBER 2007 – REVISED MAY 2013
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
V
SENSE
vs. Temperature
Average LED Current vs. DIM Duty Cycle
(ADJ = 1.0V)
(30kHz dimming, I
LED
= 6A nominal)
Figure 8.
Figure 9.
Startup Waveform
Shutdown Waveform
I
LED
= 6A nominal, V
IN
= 3.3V, V
EE
= -12V, V
LED
= 3V, SS = open
I
LED
= 6A nominal, V
IN
= 3.3V, V
EE
= -12V, V
LED
= 3V, SS = open
Top trace: EN input, 2V/div, DC
Top trace: EN input, 2V/div, DC
Middle trace: V
EE
input current, 2A/div, DC
Middle trace: V
EE
input current, 2A/div, DC
Bottom trace: I
LED
, 2A/div, DC
Bottom trace: I
LED
, 2A/div, DC
T = 100µs/div
T = 100µs/div
Figure 10.
Figure 11.
8
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