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Zakładka z wyszukiwarką danych komponentów |
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Zakładka z wyszukiwarką danych komponentów |
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SC440AEVB Arkusz danych(PDF) 6 Page - Semtech Corporation |
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SC440AEVB Arkusz danych(HTML) 6 Page - Semtech Corporation |
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6 / 21 page  SC440A 6 www.semtech.com © 2010 Semtech Corp. Typical Characteristics (continued) VOUT Pull Down Current vs Temperature VIN=4.5V VIN=21V 0.82 0.84 0.86 0.88 0.9 0.92 -40 -20020 40 60 80 Temperature (ºC) LED Source SCP Threshold vs Temperature 4.5V 21V 2.42 2.425 2.43 2.435 -40 -20 0 20406080 Temperature (ºC) LED Current Setting vs Temperature RIOSET = 2kohm 29.5 30 30.5 31 -40 -20020 40 60 80 Temperature (ºC) Efficiency vs Input Voltage VOUT=26.5V, D1=SS14 L1=10u, IHLP-2525CZ1 / Vishay, Co=10uF 0.83 0.84 0.85 0.86 0.87 0.88 0.89 0.90 0.91 5 7 9 11 131517 1921 Input Voltage (V) PWM Dimming Duty Cycle vs LED current 5mA x 6 string load, 8 LEDs per string, L1=MOS6020-10u, C2=10uF Fpwm = 200 Hz Fpwm = 50kHz 0 5 10 15 20 25 30 35 0 2040 6080 100 Duty Cycle PWM Dimming Duty Cycle vs LED current 30mA x 6 string load, 8 LEDs per string, L1=MOS6020-10u, C2=10uF Fpwm = 200 Hz Fpwm = 50kHz 0 50 100 150 200 0 2040 6080 100 Duty Cycle |
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