MAX16836_09 Datasheet, PDF (4/11 Pages) Maxim Integrated Products – High-Voltage, 350mA, High-Brightness LED Driver with PWM Dimming and 5V Regulator

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.)
DROPOUT VOLTAGE
vs. TEMPERATURE
1.0
0.9
0.8
0.7
ILOAD = 350mA
0.6
0.5
0.4
0.3
0.2
0.1
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
SHUTDOWN CURRENT
vs. TEMPERATURE
100
90
80
VIN = 40V
70
60
VIN = 20V
50
40
30
20
VIN = 12V
10
VIN = 6.5V
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
+5V REGULATOR OUTPUT
vs. TEMPERATURE
5.2
5.1
IV5 = 1mA
NO LOAD
5.0
4.9
IV5 = 5mA
4.8
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
(VCS+ - VCS-) vs. IV5
0.206
0.204
0.202
0.200
ILOAD = 350mA
0.198
0.196
0123456
IV5 (mA)
+5V REGULATOR OUTPUT vs. VIN
5.2
5.1
NO LOAD
I_V5 = 5mA
5.0
4.9
4.8
5
I_V5 = 5mA
10 15 20 25 30 35 40
VIN (V)
200Hz DIMMED OPERATION
MAX16836 toc09
V_DIM
2V/div
I_LOAD = 350mA
V_IN = V_EN = 12V
DIM PULSED AT
200Hz (5%
DUTY CYCLE)
0V
I_LOAD
200mA/div
0A
200Hz DIMMED OPERATION (EXPANDED)
MAX16836 toc10
I_LOAD = 350mA
V_IN = V_EN = 12V
DIM PULSED AT
200Hz (50%
DUTY CYCLE)
V_DIM
2V/div
0V
I_LOAD
200mA/div
0A
100µs/div
20µs/div
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