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FAN5345S20X Scheda tecnica(PDF) 6 Page - Fairchild Semiconductor

Il numero della parte FAN5345S20X
Spiegazioni elettronici  Series Boost LED Driver with Single-Wire Digital Interface
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Produttore elettronici  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

FAN5345S20X Scheda tecnica(HTML) 6 Page - Fairchild Semiconductor

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© 2011 Fairchild Semiconductor Corporation
www.fairchildsemi.com
FAN5345 • Rev. 1.0.0
6
Typical Characteristics
VIN = 3.6V, TA = 25C, 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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