Figure 8. Switching Frequency over Temperature
with LED Current at 20mA
Typical Characteristics
V IN = 3.6V, T A = 25 ? C, I LED = 20mA, and LED cathode terminals = 0.4V.
Figure 9. Mode Transition from 1x to 1.5x Mode Using
PWM Control (V CATHODE Ramp Up) at 2% Duty Cycle
Figure 11. Line Transient Response in 1x Mode,
V IN =3.6V – 4.2V, I LEDx =20mA
? 2010 Fairchild Semiconductor Corporation
FAN5702 ? Rev. 1.0.4
8
Figure 10. Mode Transition from 1.5x to 1x Mode Using
PWM Control (V CATHODE Ramp Down) at 2% Duty Cycle
Figure 12. Line Transient Response in 1.5x Mode,
V IN =2.7V – 3.3V, I LED =20mA
www.fairchildsemi.com
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