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ACT4455 Datasheet(PDF) 11 Page - Active-Semi, Inc |
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ACT4455 Datasheet(HTML) 11 Page - Active-Semi, Inc |
11 / 16 page ACT4455 Rev 2, 21-Nov-12 Innovative Power TM - 11 - www.active-semi.com Copyright © 2012 Active-Semi, Inc. TYPICAL PERFORMANCE CHARACTERISTICS (Circuit of Figure 7, RCS1 = RCS2 = 50mΩ, L = 18µH, CIN = 150µF, COUT = 680µF, TA = 25°C, unless otherwise specified.) Input Voltage (V) 5 10 15 20 25 40 30 35 Switching Frequency vs. Input Voltage 250 200 150 100 50 0 Switching Frequency vs. Feedback Voltage 250 200 150 100 50 0 Feedback Voltage (mV) 0 0.2 0.4 0.6 0.8 1 Standby Current vs. Input Voltage 940 880 860 840 820 800 900 920 Input Voltage (V) 5 10 15 20 25 40 30 35 Maximum Peak Current vs. Duty Cycle 9 8.5 8 7.5 7 6.5 6 Duty cycle 0.15 0.25 0.35 0.45 0.55 0.65 0.75 0.85 12 10 8 6 4 2 0 14 Input Voltage (V) 5 10 15 20 25 30 35 40 Input Current vs. Input Voltage at No Load Efficiency (%) 0 1000 2000 3000 4000 5000 90 80 70 60 50 100 Efficiency vs. Load current VIN = 24V VIN = 12V VIN = 32V |
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