8-Port, 36V 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 Ω )
25
PORT OUTPUT CURRENT vs.
PORT OUTPUT VOLTAGE (R SET = 720 Ω , V+ = 3.3V)
30
PORT OUTPUT CURRENT vs.
PORT OUTPUT VOLTAGE (R SET = 360 Ω , V+ = 3.3V)
60
22
T A = +125°C T A = +85°C
25
50
19
20
T A = -40°C
T A = +25°C
40
16
15
10
T A = +85°C
T A = +125°C
30
20
T A = -40°C
T A = +25°C
T A = +85°C
13
T A = -40°C
T A = +25°C
5
10
T A = +125°C
10
0
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 Ω , V+ = 5.0V)
30
25
PORT OUTPUT VOLTAGE (V)
PORT OUTPUT CURRENT vs.
PORT OUTPUT VOLTAGE (R SET = 360 Ω , V+ = 5.0V)
60
50
PORT OUTPUT VOLTAGE (V)
PORT OUTPUT CURRENT vs. SUPPLY VOLTAGE
(R SET = 720 Ω , V OUT = 2V)
26.0
20
15
T A = -40°C
T A = +25°C
40
30
T A = -40°C
T A = +25°C
25.5
25.0
T A = +125°C
T A = +85°C
10
T A = +85°C
T A = +125°C
20
T A = +85°C
T A = +125°C
24.5
T A = -40°C
T A = +25°C
5
10
0
0
24.0
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 VOLTAGE (V)
SUPPLY VOLTAGE (V)
PORT OUTPUT CURRENT vs. SUPPLY VOLTAGE
(R SET = 360 Ω , V OUT = 2V)
52
50
PORT OUTPUT CURRENT
vs. R SET RESISTANCE (V+ = 5.0V)
51
T A = +125°C
T A = +85°C
40
30
50
20
49
48
T A = -40°C
T A = +25°C
10
0
3.0
3.5
4.0
4.5
5.0
5.5
0 1000
3000
5000
7000
9000
SUPPLY VOLTAGE (V)
2000
4000 6000
R SET RESISTANCE ( Ω )
8000
10,000
_______________________________________________________________________________________
5
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