MAX6971(2005) Ver la hoja de datos (PDF) - Maxim Integrated
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MAX6971 Datasheet PDF : 12 Pages
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16-Port, 36V Constant-Current LED Driver
(TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics (continued)
SUPPLY CURRENT vs. SUPPLY VOLTAGE
(INTERFACE IDLE, ALL OUTPUTS ON, RSET = 360Ω)
45
40
TA = +125°C
35
TA = +85°C
30
25
TA = +25°C
PORT OUTPUT CURRENT vs. PORT OUTPUT
VOLTAGE (RSET = 720Ω, V+ = 3.3V)
30
TA = -40°C
25
20
TA = +25°C
15
TA = +85°C
TA = +125°C
10
20
TA = -40°C
15
3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
5
0
0 0.5 1.0 1.5 2.0 2.5 3.0
PORT OUTPUT VOLTAGE (V)
PORT OUTPUT CURRENT vs. PORT OUTPUT
VOLTAGE (RSET = 360Ω, V+ = 3.3V)
60
50 TA = -40°C
40
TA = +25°C
TA = +85°C
30
TA = +125°C
20
10
0
0 0.5 1.0 1.5 2.0 2.5 3.0
PORT OUTPUT VOLTAGE (V)
PORT OUTPUT CURRENT vs. PORT OUTPUT
VOLTAGE (RSET = 720Ω, V+ = 5.0V)
30
TA = -40°C
25
20
TA = +25°C
15
TA = +85°C
TA = +125°C
10
5
PORT OUTPUT CURRENT vs. PORT OUTPUT
VOLTAGE (RSET = 360Ω, V+ = 5.0V)
60
TA = -40°C
50
40
TA = +25°C
30
TA = +85°C
20
TA = +125°C
10
PORT OUTPUT CURRENT vs. SUPPLY
VOLTAGE (RSET = 720Ω, VOUT = 2V)
25.0
24.5
TA = +125°C
24.0
TA = +85°C
TA = +25°C
23.5
TA = -40°C
0
0 0.5 1.0 1.5 2.0 2.5 3.0
PORT OUTPUT VOLTAGE (V)
0
0 0.5 1.0 1.5 2.0 2.5 3.0
PORT OUTPUT VOLTAGE (V)
23.0
3.0 3.5 4.0 4.5 5.0 5.5
SUPPLY VOLTAGE (V)
PORT OUTPUT CURRENT vs. SUPPLY
VOLTAGE (RSET = 360Ω, VOUT = 2V)
49
PORT OUTPUT CURRENT
vs. RSET RESISTANCE (V+ = 5.0V)
50
40
48
TA = +25°C
TA = -40°C
30
20
47
TA = +85°C
TA = +125°C
10
46
3.0
3.5
4.0
4.5
5.0
5.5
SUPPLY VOLTAGE (V)
0
0
1
2
3
4
5
RSET RESISTANCE (kΩ)
_______________________________________________________________________________________ 5
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