High-Voltage, 350mA, High-Brightness LED
Driver with PWM Dimming and 5V Regulator
Typical Operating Characteristics (continued)
(V IN = V EN = +12V, T A = +25°C, unless otherwise noted.)
1.0
0.9
DROPOUT VOLTAGE
vs. TEMPERATURE
100
90
SHUTDOWN CURRENT
vs. TEMPERATURE
5.2
+5V REGULATOR OUTPUT
vs. TEMPERATURE
0.8
80
V IN = 40V
5.1
0.7
0.6
I LOAD = 350mA
70
60
V IN = 20V
I V5 = 1mA
NO LOAD
0.5
0.4
50
40
5.0
0.3
0.2
0.1
30
20
10
V IN = 12V
V IN = 6.5V
4.9
I V5 = 5mA
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE ( ° C)
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE ( ° C)
4.8
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE ( ° C)
0.206
0.204
(V CS+ - V CS- ) vs. I V5
5.2
5.1
+5V REGULATOR OUTPUT vs. V IN
0.202
5.0
NO LOAD
I V5 = 5mA
0.200
0.198
0.196
I LOAD = 350mA
4.9
4.8
I V5 = 5mA
0
1
2
3
4
5
6
5
10
15
20
25
30
35
40
I V5 (mA)
200Hz DIMMED OPERATION
MAX16836 toc09
V IN (V)
200Hz DIMMED OPERATION (EXPANDED)
MAX16836 toc10
V DIM
2V/div
I LOAD = 350mA
V IN = V EN = 12V
DIM PULSED AT
V DIM
2V/div
I LOAD = 350mA
0V
200Hz (50%
DUTY CYCLE)
0V
V IN = V EN = 12V
DIM PULSED AT
200Hz (5%
DUTY CYCLE)
100 μ s/div
I LOAD
200mA/div
0A
20 μ s/div
I LOAD
200mA/div
0A
4
_______________________________________________________________________________________
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