MAX16804 Datasheet, PDF (4/11 Pages) Maxim Integrated Products – High-Voltage, 350mA LED Driver with Analog and PWM Dimming Control

High-Voltage, 350mA LED Driver with
Analog and PWM Dimming Control
Typical Operating Characteristics (continued)
(V_IN = 12V, V_EN = V_IN, C_V5 = 0.1µF, I_V5 = 0, CS- = GND, R_SENSE = 0.56Ω, connect OUT to CS+, V_DIM = 4V, T_A = +25°C, unless
otherwise noted.)
DROPOUT VOLTAGE
vs. TEMPERATURE
1.0
VIN = 12V
0.9
ILOAD = 350mA
0.8
0.7
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
40
35
VIN = 40V
30
25
20
VIN = 20V
15
VIN = 12V
10
VIN = 6.5V
5
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
+5V REGULATOR OUTPUT
vs. TEMPERATURE
5.20
NO LOAD
5.15
ILOAD = 1mA
5.10
ILOAD = 2mA
5.05
V_IN = 12V
5.00
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
+5V REGULATOR OUTPUT vs. VIN
5.20
NO LOAD
5.15
5.10
ILOAD = 2mA
5.05
ILOAD = 1mA
5.00
5
10 15 20 25 30 35 40
VIN (V)
0.1990
0.1989
0.1988
(VCS+ - VCS-) vs. IV5
ILOAD = 350mA
VIN = 12V
0.1987
0.1986
0.1985
0.1984
0.1983
0.1982
0.1981
0.1980
0 1 2 3 4 5 6 7 8 9 10
IV5 (mA)
200Hz DIMMED OPERATION
MAX16804 toc09
I_LOAD = 350mA
V_IN = 12V
DIM PULSED AT
200Hz (1% DUTY
CYCLE)
V_DIM
2V/div
0V
I_LOAD
200mA/div
0A
20μs/div
LED CURRENT FALL TIME (EXPANDED)
MAX16804 toc10
DIM PULSED AT
200Hz
V_DIM
2V/div
0V
I_LED
200mA/div
0A
LED CURRENT RISE TIME (EXPANDED)
MAX16804 toc11
DIM PULSED AT
200Hz
V_DIM
2V/div
0V
I_LED
200mA/div
0A
20μs/div
20μs/div
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