AS1109-BQFT Ver la hoja de datos (PDF) - austriamicrosystems AG
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AS1109-BQFT Datasheet PDF : 25 Pages
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AS1109
Datasheet - Typical Operating Characteristics
7 Typical Operating Characteristics
Figure 3. Output Current vs. REXT,
VDD = 5V; VOUT = 0.8V, TAMB = 25°C
100
Figure 4. Relative Output Current Error vs. VDD,
Iout/Iout@VDD = 5V - 1, TAMB = 25°C
2
1.5
1
0.5 REXT = 744Ω;
10
0 VDS = 0.5V
-0.5 REXT = 372Ω;
-1 VDS = 0.6V
REXT = 186Ω;
VDS = 0.8V
-1.5
1
100
1000
REXT (Ohm)
10000
Figure 5. Output Current vs. VDS;
VDD = 5V, TAMB = 25°C
160
140
REXT = 127Ω
-2
3
3.5
4
4.5
5
5.5
VDD (V)
Figure 6. Output Current vs. VDS;
VDD = 5V, TAMB = 25°C
160
140
REXT = 127Ω
120
REXT = 150Ω
100
REXT = 186Ω
80
REXT = 251Ω
60
40
REXT = 372Ω
20
REXT = 744Ω
0
0 2 4 6 8 10 12 14
VDS (V)
120
REXT = 150Ω
100
REXT = 186Ω
80
REXT = 251Ω
60
40
REXT = 372Ω
20
REXT = 744Ω
0
0 0.2 0.4 0.6 0.8 1 1.2 1.4
VDS (V)
Figure 7. Relative IOUT Error vs. Temperature
VDD = 5V, Iout/Iout@25°C - 1, TAMB = 25°C
1
REXT = 372Ω;
VDS = 0.6V
0.5
REXT = 186Ω;
0 VDS = 0.8V
-0.5
REXT = 744Ω;
VDS = 0.5V
Figure 8. Output Current vs. VDD
160
140
120
100
80
60
40
20
VDS = 1V
VDS = 0.9V
VDS = 0.8V
VDS = 0.7V
VDS = 0.6V
VDS = 0.5V
-1
-50 -25 0 25 50 75 100
Temperature (°C)
0
3
3.5
4
4.5
5
5.5
VDD (V)
www.ams.com/LED-Driver-ICs/AS1109
Revision 1.21
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