MAX16835 Datasheet, PDF (4/8 Pages) Maxim Integrated Products – High-Voltage, 350mA, Adjustable Linear High-Brightness LED Driver

High-Voltage, 350mA, Adjustable Linear
High-Brightness LED Driver
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
0.198
ILOAD = 350mA
0.196
0
1
2
3
4
5
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
MAX16835 toc09
VIN
5V/div
0V
ILOAD = 350mA, VIN = VEN,
VIN PULSED AT 200Hz (50% DUTY CYCLE)
1ms/div
ILOAD
200mA/div
0
200Hz DIMMED OPERATION EXPANDED
MAX16835 toc10
200Hz DIMMED OPERATION EXPANDED
MAX16835 toc11
200Hz DIMMED OPERATION
MAX16835 toc12
ILOAD = 350mA
VIN = VEN
VIN PULSED AT 200Hz
(50% DUTY CYCLE)
20μs/div
VIN
5V/div
0V
ILOAD
200mA/div
0
VIN
5V/div
ILOAD = 350mA
VIN = VEN
VIN PULSED AT 200Hz
(50% DUTY CYCLE)
0V
ILED
200mA/div
0
4μs/div
ILOAD = 350mA, VIN = 12V,
EN PULSED AT 200Hz (50% DUTY CYCLE)
1ms/div
EN
10V/div
0V
ILED
200mA/div
0
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