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AS1109 数据表(PDF) 8 Page - ams-OSRAM AG

部件名 AS1109
功能描述  Constant-Current, 8-Bit LED Driver with Diagnostics
PDF  26 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  AMSOSRAM [ams-OSRAM AG]
网页  https://ams-osram.com/
标志 AMSOSRAM - ams-OSRAM AG

AS1109 数据表(HTML) 8 Page - ams-OSRAM AG

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www.ams.com/LED-Driver-ICs/AS1109
Revision 1.21
6 - 24
AS1109
Datasheet - Ty pical Operating Characteristics
7 Typical Operating Characteristics
Figure 3. Output Current vs. REXT,
Figure 4. Relative Output Current Error vs. VDD,
VDD = 5V; VOUT = 0.8V, TAMB = 25°C
Iout/Iout@VDD = 5V - 1, TAMB = 25°C
Figure 5. Output Current vs. VDS;
Figure 6. Output Current vs. VDS;
VDD = 5V, TAMB = 25°C
VDD = 5V, TAMB = 25°C
Figure 7. Relative IOUT Error vs. Temperature
Figure 8. Output Current vs. VDD
VDD = 5V, Iout/Iout@25°C - 1, TAMB = 25°C
1
10
100
100
1000
10000
REXT (Ohm)
-2
-1.5
-1
-0.5
0
0.5
1
1.5
2
33.5
44.5
55.5
VDD (V)
REXT = 744
Ω;
VDS = 0.5V
REXT = 372
Ω;
VDS = 0.6V
REXT = 186
Ω;
VDS = 0.8V
0
20
40
60
80
100
120
140
160
02
46
8
10
12
14
VDS (V)
REXT = 127
Ω
REXT = 251
Ω
REXT = 372
Ω
REXT = 150
Ω
REXT = 186
Ω
REXT = 744
Ω
0
20
40
60
80
100
120
140
160
0
0.2
0.4
0.6
0.8
1
1.2
1.4
VDS (V)
REXT = 127
Ω
REXT = 251
Ω
REXT = 372
Ω
REXT = 150
Ω
REXT = 186
Ω
REXT = 744
Ω
-1
-0.5
0
0.5
1
-50
-25
0
255075
100
Temperature (°C)
REXT = 372
Ω;
VDS = 0.6V
REXT = 744
Ω;
VDS = 0.5V
REXT = 186
Ω;
VDS = 0.8V
0
20
40
60
80
100
120
140
160
3
3.5
4
4.5
5
5.5
VDD (V)
VDS = 1V
VDS = 0.9V
VDS = 0.8V
VDS = 0.7V
VDS = 0.6V
VDS = 0.5V



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