MAX16826_15 Datasheet, PDF (6/26 Pages) Maxim Integrated Products – Programmable, Four-String HB LED Driver with Output-Voltage Optimization and Fault Detection

MAX16826
Programmable, Four-String HB
LED Driver with Output-Voltage
Optimization and Fault Detection
Typical Operating Characteristics
(V_IN = 12V, R19 = 2kΩ, C33 = 2200pF, R17 = 1.27kΩ, C_{DL_} = 0.01μF. T_A = +25°C, unless otherwise noted.)
16
14
12
10
8
6
4
2
0
0
360
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
CDL = 4700pF
4 8 12 16 20 24
SUPPLY VOLTAGE (V)
OSCILLATOR FREQUENCY
vs. SUPPLY VOLTAGE
SUPPLY CURRENT
vs. OSCILLATOR FREQUENCY
40
CDL = 4700pF
C33 FROM 680pF TO 8200pF
30
20
10
0
100 200 300 400 500 600 700 800 900 1000
OSCILLATOR FREQUENCY (kHz)
OSCILLATOR FREQUENCY
vs. TEMPERATURE
400
SUPPLY CURRENT
vs. TEMPERATURE
17
16
15
14
13
CDL = 4700pF
12
-40 -15 10 35 60 85 110
TEMPERATURE (°C)
LED OUTPUT CURRENT
vs. TEMPERATURE
145
350
340
330
320
310
300
5.5
360
143
320
141
280
139
9.2 12.9 16.6 20.3 24.0
SUPPLY VOLTAGE (V)
240
200
-40 -15 10 35 60 85 110
TEMPERATURE (°C)
137
135
0
VCS = 0.32V
20
40
60
80
100
TEMPERATURE (°C)
LED OUTPUT CURRENT
vs. INPUT VOLTAGE
150
DIM INPUT TO ILED OUTPUT WAVEFORM
MAX16826 toc08
120
VDIM
5V/div
90
0V
60
ILED
100mA/div
0mA
30
0
0
6
12
18
24
INPUT VOLTAGE (V)
2μs/div
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