MAX16824_09 Datasheet, PDF (5/13 Pages) Maxim Integrated Products – High-Voltage, Three-Channel Linear High-Brightness LED Drivers

High-Voltage, Three-Channel Linear
High-Brightness LED Drivers
Typical Operating Characteristics (continued)
(V_IN = 12V, C_REG = 1µF to GND, I_REG = 0, R_{CS_} = 2Ω from CS_ to GND, T_A = +25°C, unless otherwise noted. Typical values are at
T_A = +25°C.)
OUTPUT CURRENT vs. TEMPERATURE
200
180
160
I_OUT = 150mA
140
120
100
I_OUT = 95mA
80
60
40
20
I_OUT = 10mA
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
SUPPLY CURRENT
vs. TEMPERATURE
3.45
3.25
V_IN = 28V
3.05
2.85
V_IN = 6.5V
2.65
2.45
V_PWM = V_PWM = V_PWM = 0
2.25
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
OUTPUT VOLTAGE vs. TEMPERATURE
5.10
5.08
5.06
5.04
I_LOAD = 0
5.02
5.00
4.98
4.96 ^{ILOAD = 4mA}
I_LOAD = 1mA
4.94
4.92
4.90
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
CS_ VOLTAGE vs. REG OUTPUT CURRENT
0.200
0.199
0.198
0.197
0.196
0.195
0.194
0.193
0.192
I_LOAD = 100mA
0.191
0.190
0.189
0.188
0.187
I_LOAD = 150mA
0.186
0.185
0.184
0.183
0.182
0 1 2 3 4 5 6 7 8 9 10
I_REG (mA)
OUTPUT VOLTAGE vs. INPUT VOLTAGE
5.000
4.995
4.990
I_REG = 0
4.985
4.980
I_REG = 1mA
4.975
4.970
4.965
I_REG = 4mA
4.960
0 4 8 12 16 20 24 28
V_IN (V)
LED CURRENT FALL TIME
MAX16824 toc09
I_LED = 150mA
V_IN = 12V
PULSED AT 200Hz
(50% DUTY CYCLE)
V_{PWM_}
2V/div
0V
I_{OUT_}
100mA/div
0A
2μs/div
LED CURRENT RISE TIME
MAX16824 toc10
V_{PWM_}
2V/div
0V
I_LED = 150mA
V_IN = 12V
PULSED AT 200Hz
(50% DUTY CYCLE)
I_{OUT_}
100mA/div
0A
2μs/div
330Hz DIMMED OPERATION
MAX16824 toc11
I_LOAD = 150mA
V_IN = 12V
PWM_ PULSED
AT 330Hz
(1% DUTY CYCLE)
V_{PWM_}
2V/div
0V
20μs/div
I_{OUT_}
100mA/div
0A
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