Datasheet
MAX16804
High-Voltage, 350mA LED Driver with
Analog and PWM Dimming Control
4 _______________________________________________________________________________________
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
MAX16804 toc04
TEMPERATURE (°C)
DROPOUT VOLTAGE (V)
1109565 80-10 5 20 35 50-25
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
0
-40 125
V
IN
= 12V
I
LOAD
= 350mA
SHUTDOWN CURRENT
vs. TEMPERATURE
MAX16804 toc05
TEMPERATURE (°C)
SHUTDOWN CURRENT (μA)
1109580655035205-10-25
5
10
20
15
25
30
35
40
0
-40 125
V
IN
= 40V
V
IN
= 20V
V
IN
= 12V
V
IN
= 6.5V
+5V REGULATOR OUTPUT
vs. TEMPERATURE
MAX16804 toc06
TEMPERATURE (°C)
+5V REGULATOR OUTPUT (V)
1109580655035205-10-25
5.05
5.10
5.15
5.20
5.00
-40 125
NO LOAD
V
IN
= 12V
I
LOAD
= 1mA
I
LOAD
= 2mA
+5V REGULATOR OUTPUT vs. V
IN
MAX16804 toc07
V
IN
(V)
+5V REGULATOR OUTPUT (V)
353025201510
5.05
5.10
5.15
5.20
5.00
540
I
LOAD
= 1mA
NO LOAD
I
LOAD
= 2mA
(V
CS+
- V
CS-
) vs. I
V5
MAX16804 toc08
I
V5
(mA)
(V
CS+
- V
CS-
) (V)
7
64
5
2
31
0.1981
0.1982
0.1983
0.1984
0.1985
0.1986
0.1987
0.1988
0.1989
0.1990
0.1980
08910
I
LOAD
= 350mA
V
IN
= 12V
200Hz DIMMED OPERATION
MAX16804 toc09
20μs/div
V
DIM
2V/div
I
LOAD
200mA/div
0V
0A
I
LOAD
= 350mA
V
IN
= 12V
DIM PULSED AT
200Hz (1% DUTY
CYCLE)
LED CURRENT FALL TIME (EXPANDED)
MAX16804 toc10
20μs/div
V
DIM
2V/div
I
LED
200mA/div
0V
0A
DIM PULSED AT
200Hz
LED CURRENT RISE TIME (EXPANDED)
MAX16804 toc11
20μs/div
V
DIM
2V/div
I
LED
200mA/div
0V
0A
DIM PULSED AT
200Hz