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MAX16823_09 Datasheet(Arkusz danych) 4 Page - Maxim Integrated Products

Numer części MAX16823_09
Szczegółowy opis  High-Voltage, 3-Channel Linear High-Brightness LED Driver with Open LED Detection
Pobierz  12 Pages
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Producent  MAXIM [Maxim Integrated Products]
Strona internetowa  http://www.maxim-ic.com
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 4 page
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High-Voltage, 3-Channel Linear High-Brightness
LED Driver with Open LED Detection
4
_______________________________________________________________________________________
SUPPLY CURRENT vs. TEMPERATURE
TEMPERATURE (
°C)
-40 -25 -10 5
203550658095 110 125
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
VIN = 5.5V
VIN = 12V
VIN = 20V
VIN = 40V
VDIM1 = VDIM2 = VDIM3 = 0V
VREG vs. TEMPERATURE
TEMPERATURE (
°C)
-40 -25 -10 5
20 35 50 65 80 95 110 125
3.0
3.1
3.2
3.3
3.4
3.5
ILOAD = 4mA
ILOAD = 1mA
ILOAD = 0
VCS_ vs. IREG
IREG (mA)
0123456789
10
0.195
0.196
0.197
0.198
0.199
0.200
0.201
0.202
0.203
0.204
0.205
0.206
0.207
0.208
0.209
0.210
ILOAD = 70mA
VREG vs. VIN
VIN (V)
0
5
10
15
20
25
30
35
40
3.35
3.36
3.37
3.38
3.39
3.40
3.41
3.42
3.43
3.44
3.45
IREG = 0
IREG = 1mA
IREG = 4mA
330Hz DIMMED OPERATION
MAX16823 toc09
20
μs/div
VDIM
2V/div
0V
0A
ILED
50mA/div
VIN = 12V, DIM
PULSED AT 33Hz
(1% DUTY CYCLE)
ILOAD = 70mA
200Hz DIMMED OPERATION (EXPANDED)
MAX16823 toc10
10
μs/div
VDIM
2V/div
0V
0A
ILOAD
50mA/div
VIN = 12V, DIM
PULSED AT 200Hz
(50% DUTY CYCLE)
ILOAD = 70mA
200Hz DIMMED OPERATION (EXPANDED)
MAX16823 toc11
10
μs/div
VDIM
2V/div
0V
0A
ILOAD
50mA/div
VIN = 12V, DIM
PULSED AT 200Hz
(50% DUTY CYCLE)
ILOAD = 70mA
DROPOUT VOLTAGE vs. TEMPERATURE
TEMPERATURE (
°C)
-40 -25 -10 5
20 35 50 65 80 95 110 125
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
ILOAD = 70mA
Typical Operating Characteristics (continued)
(VIN = 12V, CREG = 0.1µF, IREG = 0, VLGC = unconnected, connect RCS_ = 2.85
Ω from CS_ to GND. Connect OUT_ to CS_ through
a resistor, TJ = -40°C to +125°C, unless otherwise noted. Typical values are at TA = +25°C.)
LEDGOOD RESPONSE TIMES
MAX16823 toc12
2ms/div
VDIM
VLEDGOOD
5V/div
5V/div
0V
0V
0V
VLGC
5V/div
VIN = 12V
CLGC = 15nF




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