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FAN5341 Folha de dados(PDF) 6 Page - Fairchild Semiconductor |
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FAN5341 Folha de dados(HTML) 6 Page - Fairchild Semiconductor |
6 / 11 page © 2009 Fairchild Semiconductor Corporation www.fairchildsemi.com FAN5341 • Rev. 1.0.0 6 Electrical Specifications Figure 4. 5 LEDs: Efficiency vs. LED Current vs. Input Voltage Figure 5. 5 LEDs: Efficiency vs. LED Current vs. Input Voltage -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 2.7 3 3.3 3.6 3.9 4.2 Input Voltage (V) -40°C +25°C +85°C Figure 6. 4 LEDs: Efficiency vs. LED Current vs. Input Voltage Figure 7. Delta of VFB Over Input Voltage and Temperature for 4 LEDs with L=10µH and COUT=1.0µF at ILED=25mA Figure 8. 3 LEDs: Efficiency vs. LED Current vs. Input Voltage Figure 9. Over-Voltage Protection vs. Input Voltage 17.0 17.5 18.0 18.5 19.0 19.5 20.0 2.7 3 3.3 3.6 3.9 4.2 Input Voltage (V) 4 LEDs L = 10µH COUT = 1.0µF ILED = 25mA 50 60 70 80 90 5 10152025 LED Current (mA) VIN=2.8V VIN=3.6V VIN=4.2V 3 LEDs L = 10µH COUT = 1.0µF ILED = 25mA 50 60 70 80 90 510 15 20 25 LED Current (mA) VIN=2.7V VIN=3.6V VIN=4.2V 4 LEDs L = 10µH COUT = 1.0µF ILED = 25mA 50 60 70 80 90 510 15 20 25 LED Current (mA) VIN=2.8V VIN=3.6V VIN=4.2V 5 LEDs L = 4.7µH COUT = 1.0µF ILED = 25mA 50 60 70 80 90 5 1015 2025 LED Current (mA) VIN=2.7V VIN=3.6V VIN=4.2V 5 LEDs L = 10µH COUT = 1.0µF ILED = 25mA |
Nº de peça semelhante - FAN5341 |
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Descrição semelhante - FAN5341 |
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