MAX16800_09 Datasheet, PDF (4/8 Pages) Maxim Integrated Products – High-Voltage, 350mA, Adjustable Linear High-Brightness LED (HB LED) Driver

High-Voltage, 350mA, Adjustable Linear
High-Brightness LED (HB 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
0.6
ILOAD = 350mA
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
35
30
VIN = 40V
25
20
VIN = 20V
15
VIN = 12V
10
5
VIN = 6.5V
0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
+5V REGULATOR OUTPUT
vs. TEMPERATURE
5.5
5.4
ILOAD = 1mA
NO LOAD
5.3
5.2
5.1
ILOAD = 5mA
5.0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
(VCS+ - VCS-) vs. IV5
0.210
0.209
0.208
0.207
0.206
0.205
0.204
0.203
ILOAD = 410mA
0.202
0.201
0.200
0.199
0.198
012345678
IV5 (mA)
+5V REGULATOR OUTPUT vs. VIN
5.30
NO LOAD
5.25
5.20
LOAD = 1mA
5.15
LOAD = 5mA
5.10
5
10 15 20 25 30 35 40
VIN (V)
200Hz DIMMED OPERATION
MAX16800 toc09
ILOAD = 350mA, VIN = VEN,
VIN PULSED AT 200Hz (50% DUTY CYCLE)
VIN
5V/div
0V
ILOAD
200mA/div
1ms/div
200Hz DIMMED OPERATION EXPANDED
MAX16800 toc10
200Hz DIMMED OPERATION EXPANDED
MAX16800 toc11
VIN
5V/div
VIN
5V/div
ILOAD = 350mA,
VIN = VEN,
VIN PULSED AT 200Hz
(50% DUTY CYCLE)
0V
ILOAD
100mA/div
ILOAD = 350mA,
VIN = VEN,
VIN PULSED AT 200Hz
(50% DUTY CYCLE)
0V
ILED
100mA/div
0
0
20μs/div
4μs/div
200Hz DIMMED OPERATION
MAX16800 toc12
ILOAD = 350mA, VIN = 12V,
EN PULSED AT 200Hz (50% DUTY CYCLE)
EN
10V/div
0V
ILED
100mA/div
0
1ms/div
4 _______________________________________________________________________________________