AS1101_1 AMSCO [austriamicrosystems AG], AS1101_1 Datasheet - Page 7

• Manufacturer Part Number: AS1101_1
• Description: Low-Dropout LED Drivers
• Manufacturer: AMSCO [austriamicrosystems AG]

AS1101/AS1102/AS1103/AS1104
Data Sheet
Figure 9. AS1102, AS1103, AS1104 I
V
Figure 11. AS1101 I
Figure 13. AS1101 I
www.austriamicrosystems.com
SET
22
20
18
16
14
12
10
22
22
20
20
18
18
16
16
14
14
12
12
10
10
90
80
70
60
50
40
30
20
10
= 3V
8
6
4
2
8
8
6
6
4
4
0
10
V
0
0
0
V
SAT
V
V
V
SAT
SAT
SAT
SAT
20 30
= 0.15V
20
20
20
- Ty p i c a l P e r f o r m a n c e C h a r a c t e r i s t i c s
= 0.4V
= 0.4V
= 0.5V
= 0.5V
V
V
V
V
SAT
40
40
40
SAT
V
SAT
SAT
SAT
V
40
LED
= 0.20V
LED
= 0.6V
= 0.6V
SAT
= 0.3V
= 0.3V
60
60
60
R
R
R
I
= 0.05V
SET
50 60
SET
vs. R
vs. I
SET
SET
80
80
80
(k Ω)
(µA)
(k Ω)
(k Ω)
SET
SET
V
V
V
SAT
100 120 140 160
100 120 140 160
100 120 140 160
SAT
SAT
70
; V
= 0.10V
= 0.25V
= 0.30V
SET
80 90 100
LED
= 3V
vs. R
SET
,
Revision 1.5
Figure 10. AS1102, AS1103, AS1104 I
V
Figure 12. I
Figure 14. AS1102, AS1103, AS1104 I
SET
12.5
11.5
35
30
25
20
15
10
45
40
35
30
25
20
15
10
13
12
11
= 3V
5
0
5
0
-40
0
0
V
V
SAT
SAT
20 40 60 80 100 120 140 160 180 200
LED
20
-20
= 1V
= 0.3V
V
vs. Temp; V
V
40
SAT
SAT
Temperature (°C)
0
= 0.6V
= 0.15V
60
I
R
SET
SET
20
(µA)
80
(k Ω)
LED
40
100 120 140 160
= -0.25V, I
60
LED
LED
80
SET
vs. R
vs. I
100
= 50µA
SET
SET
;
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