AS112
Datasheet ꢀ Typical Operating Characteristics
7 Typical Operating Characteristics
TAMB = +25°C, VDD = 3.0V, VOUT = 1.0V (unless otherwise specified)
Figure 4. Constant Output Current vs. Output Voltage
Figure 5. Constant Output Current vs. Output Voltage
50
50
45
45
Icoc = 40mA (1kΩ)
Icoc = 40mA (1kΩ)
40
35
30
40
35
30
25
20
15
10
5
25
Icoc = 20mA (2kΩ)
Icoc = 20mA (2kΩ)
20
15
Icoc = 8mA (4.7kΩ)
Icoc = 8mA (4.7kΩ)
Icoc = 4mA (10kΩ)
10
Icoc = 4mA (10kΩ)
5
0
0
0
1
2
3
4
5
6
7
8
9
10
0
0.25 0.5 0.75
1
1.25 1.5 1.75
2
Output Voltage (V)
Output Voltage (V)
Figure 6. Constant Output Current vs. VOUT; REXT = 1kΩ
Figure 7. Constant Output Current vs. VOUT; REXT = 1kΩ
50
45
40
35
30
25
20
15
50
45
40
35
30
25
20
15
-40°C
-40°C
10
5
10
5
+25°C
+85°C
+25°C
+85°C
0
0
0
1
2
3
4
5
6
7
8
9
10
0
0.25 0.5 0.75
1
1.25 1.5 1.75
2
Output Voltage (V)
Output Voltage (V)
Figure 8. ICOC vs. Supply Voltage; REXT = 1kΩ
Figure 9. ICOC vs. Supply Voltage; REXT = 10kΩ
41
40.75
40.5
40.25
40
4.1
4.06
4.02
3.98
3.94
3.9
39.75
39.5
39.25
39
-40°C
-40°C
+25°C
+85°C
+25°C
+85°C
2.7 2.8 2.9
3
3.1 3.2 3.3 3.4 3.5 3.6
2.7 2.8 2.9
3
3.1 3.2 3.3 3.4 3.5 3.6
Supply Voltage (V)
Supply Voltage (V)
www.austriamicrosystems.com/LEDꢀDriverꢀICs
Revision 1.00
6 ꢀ 22
AMSCO [ AMS(艾迈斯) ]
