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FAN5345S20X Scheda tecnica(PDF) 6 Page - Fairchild Semiconductor |
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FAN5345S20X Scheda tecnica(HTML) 6 Page - Fairchild Semiconductor |
6 / 14 page © 2011 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN5345 • Rev. 1.0.0 6 Typical Characteristics VIN = 3.6V, TA = 25C, ILED = 25mA, L = 10µH, COUT = 1.0µF, and CIN = 10.0µF. 50% 60% 70% 80% 90% 5 10 152025 LED Current (mA) VIN=2.5V VIN=2.7V VIN=3.6V VIN=4.2V VIN=4.5V 50% 60% 70% 80% 90% 5 10152025 LED Current (mA) VIN=2.5V VIN=2.7V VIN=3.6V VIN=4.2V VIN=4.5V Figure 4. 3 LEDs: Efficiency vs. LED Current vs. Input Voltage Figure 5. 4 LEDs: Efficiency vs. LED Current vs. Input Voltage 50% 60% 70% 80% 90% 5 101520 25 LED Current (mA) VIN=2.5V VIN=2.7V VIN=3.6V VIN=4.2V VIN=4.5V 50% 60% 70% 80% 90% 5 101520 25 LED Current (mA) VIN=2.5V VIN=2.7V VIN=3.6V VIN=4.2V VIN=4.5V Figure 6. 5 LEDs: Efficiency vs. LED Current vs. Input Voltage Figure 7. 6 LEDs: Efficiency vs. LED Current vs. Input Voltage 50% 60% 70% 80% 90% 5 10 152025 LED Current (mA) VIN=2.5V VIN=2.7V VIN=3.6V VIN=4.2V VIN=4.5V 50% 60% 70% 80% 90% 5 1015 2025 LED Current (mA) VIN=2.9V VIN=3.6V VIN=4.2V VIN=4.5V Figure 8. 7 LEDs: Efficiency vs. LED Current vs. Input Voltage Figure 9. 8 LEDs: Efficiency vs. LED Current vs. Input Voltage |
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