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8-Port, 5.5V Constant-Current LED Driver
Typical Operating Characteristics (continued)
(T A = +25 ° C, unless otherwise noted.)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
(INTERFACE IDLE, ALL OUTPUTS ON, R SET = 360 ? )
15
T A = +125 ° C
T A = +85 ° C
12
PORT OUTPUT CURRENT vs. PORT OUTPUT
VOLTAGE (R SET = 720 ? , V+ = 3.3V)
30
25
PORT OUTPUT CURRENT vs. PORT OUTPUT
VOLTAGE (R SET = 360 ? , V+ = 3.3V)
60
50
9
20
T A = -40 ° C
T A = +25 ° C
40
T A = -40 ° C
T A = +25 ° C
6
T A = -40 ° C
T A = +25 ° C
15
T A = +85 ° C
T A = +125 ° C
30
T A = +85 ° C
T A = +125 ° C
10
20
3
0
5
0
10
0
3.0
3.5
4.0
4.5
5.0
5.5
0
0.5
1.0
1.5
2.0
2.5
3.0
0
0.5
1.0
1.5
2.0
2.5
3.0
SUPPLY VOLTAGE (V)
PORT OUTPUT CURRENT vs. PORT OUTPUT
VOLTAGE (R SET = 720 ? , V+ = 5.0V)
30
PORT OUTPUT VOLTAGE (V)
PORT OUTPUT CURRENT vs. PORT OUTPUT
VOLTAGE (R SET = 360 ? , V+ = 5.0V)
60
26.0
PORT OUTPUT VOLTAGE (V)
PORT OUTPUT CURRENT vs. SUPPLY
VOLTAGE (R SET = 720 ? , V OUT = 2V)
25
50
25.5
T A = +85 ° C
20
T A = -40 ° C
T A = +25 ° C
40
T A = -40 ° C
T A = +25 ° C
25.0
T A = +125 ° C
15
10
T A = +85 ° C
T A = +125 ° C
30
20
T A = +85 ° C
T A = +125 ° C
24.5
24.0
T A = -40 ° C
T A = +25 ° C
5
0
10
0
23.5
23.0
0
0.5
1.0
1.5
2.0
2.5
3.0
0
0.5
1.0
1.5
2.0
2.5
3.0
3.0
3.5
4.0
4.5
5.0
5.5
PORT OUTPUT VOLTAGE (V)
PORT OUTPUT CURRENT vs. SUPPLY
VOLTAGE (R SET = 360 ? , V OUT = 2V)
52
PORT OUTPUT VOLTAGE (V)
50
SUPPLY VOLTAGE (V)
PORT OUTPUT CURRENT
vs. R SET RESISTANCE (V+ = 5.0V)
51
50
T A = +125 ° C
T A = +85 ° C
40
30
49
48
47
T A = -40 ° C
T A = +25 ° C
20
10
0
3.0
3.5
4.0
4.5
5.0
5.5
0
500
1000
1500
2000
2500
SUPPLY VOLTAGE (V)
R SET RESISTANCE ( ? )
_______________________________________________________________________________________
5
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