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AS1122 Datasheet(PDF) 7 Page - ams AG |
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AS1122 Datasheet(HTML) 7 Page - ams AG |
7 / 23 page www.austriamicrosystems.com/LED-Driver-ICs Revision 1.00 6 - 22 AS112 Datasheet - Ty p i c a l O p e r a t i n g C h a r a c t e r i s t i c s 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 0 5 10 15 20 25 30 35 40 45 50 0 1 2 3 4 5 6 7 8 9 10 Output Voltage (V) Icoc = 40mA (1k Ω) Icoc = 20mA (2k Ω) Icoc = 8mA (4.7k Ω) Icoc = 4mA (10k Ω) 0 5 10 15 20 25 30 35 40 45 50 0 0.25 0.5 0.75 1 1.25 1.5 1.75 2 Output Voltage (V) Icoc = 40mA (1k Ω) Icoc = 20mA (2k Ω) Icoc = 8mA (4.7k Ω) Icoc = 4mA (10k Ω) Figure 6. Constant Output Current vs. VOUT; REXT = 1k Ω Figure 7. Constant Output Current vs. VOUT; REXT = 1k Ω 0 5 10 15 20 25 30 35 40 45 50 0 1 2 3 4 5 6 7 8 9 10 Output Voltage (V) -40°C +25°C +85°C 0 5 10 15 20 25 30 35 40 45 50 0 0.25 0.5 0.75 1 1.25 1.5 1.75 2 Output Voltage (V) -40°C +25°C +85°C Figure 8. ICOC vs. Supply Voltage; REXT = 1k Ω Figure 9. ICOC vs. Supply Voltage; REXT = 10k Ω 39 39.25 39.5 39.75 40 40.25 40.5 40.75 41 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 3.6 Supply Voltage (V) -40°C +25°C +85°C 3.9 3.94 3.98 4.02 4.06 4.1 2.7 2.8 2.9 3 3.1 3.2 3.3 3.4 3.5 3.6 Supply Voltage (V) -40°C +25°C +85°C |
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