MAX6968 MAXIM [Maxim Integrated Products], MAX6968 Datasheet - Page 5

• Manufacturer Part Number: MAX6968
• Description: 16-Port, 36V Constant-Current LED Driver
• Manufacturer: MAXIM [Maxim Integrated Products]

(T
A
(INTERFACE IDLE, ALL OUTPUTS ON, R
= +25°C, unless otherwise noted.)
45
40
35
30
25
20
15
30
25
20
15
10
5
0
PORT OUTPUT CURRENT vs. PORT OUTPUT
SUPPLY CURRENT vs. SUPPLY VOLTAGE
3.0
0
T
VOLTAGE (R
A
= -40°C
T
0.5
A
T
3.5
A
= +125°C
= -40°C
PORT OUTPUT VOLTAGE (V)
T
T
A
SUPPLY VOLTAGE (V)
A
1.0
16-Port, 36V Constant-Current LED Driver
= +125°C
49
48
47
46
= +25°C
T
SET
A
4.0
3.0
= +85°C
_______________________________________________________________________________________
PORT OUTPUT CURRENT vs. SUPPLY
= 720Ω, V+ = 5.0V)
VOLTAGE (R
1.5
T
T
T
A
4.5
A
A
T
3.5
= -40°C
= +125°C
A
= +25°C
2.0
= +85°C
SUPPLY VOLTAGE (V)
SET
5.0
4.0
2.5
SET
= 360Ω, V
= 360Ω)
T
3.0
5.5
A
4.5
T
= +85°C
A
= +25°C
OUT
5.0
Typical Operating Characteristics (continued)
= 2V)
30
25
20
15
10
60
50
40
30
20
10
5
0
0
PORT OUTPUT CURRENT vs. PORT OUTPUT
PORT OUTPUT CURRENT vs. PORT OUTPUT
0
0
T
5.5
VOLTAGE (R
VOLTAGE (R
T
A
A
= -40°C
= -40°C
0.5
0.5
PORT OUTPUT VOLTAGE (V)
PORT OUTPUT VOLTAGE (V)
T
T
A
A
1.0
1.0
= +125°C
= +125°C
T
SET
SET
T
A
T
T
A
A
A
= +85°C
= +25°C
= +25°C
= +85°C
= 720Ω, V+ = 3.3V)
= 360Ω, V+ = 5.0V)
1.5
1.5
2.0
2.0
2.5
2.5
50
40
30
20
10
0
3.0
3.0
0
vs. R
PORT OUTPUT CURRENT
1
SET
25.0
24.5
24.0
23.5
23.0
R
60
50
40
30
20
10
SET
0
RESISTANCE (V+ = 5.0V)
PORT OUTPUT CURRENT vs. PORT OUTPUT
3.0
0
RESISTANCE (kΩ)
2
PORT OUTPUT CURRENT vs. SUPPLY
VOLTAGE (R
VOLTAGE (R
T
A
= -40°C
0.5
T
T
A
A
3.5
= +125°C
= -40°C
PORT OUTPUT VOLTAGE (V)
3
SUPPLY VOLTAGE (V)
T
1.0
A
T
= +125°C
SET
T
SET
A
A
4.0
= +25°C
= +85°C
4
= 360Ω, V+ = 3.3V)
= 720Ω, V
1.5
T
A
4.5
= +25°C
T
5
A
2.0
= +85°C
OUT
5.0
2.5
= 2V)
3.0
5.5
5