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UC1854BJ Datasheet(PDF) 9 Page - Texas Instruments |
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UC1854BJ Datasheet(HTML) 9 Page - Texas Instruments |
9 / 16 page UC1854B UC2854A, UC2854B UC3854A, UC3854B SLUS329B − JUNE 1998 − REVISED FEBRUARY 2005 9 www.ti.com TYPICAL CHARACTERISTICS Figure 1 0 0 100 300 400 500 600 800 200 700 0.01 0.02 0.03 0.04 0.05 GATE DRIVE TIMING vs LOAD CAPACITANCE CLOAD − Load Capacitance − µF Rise Time Fall Time Figure 2 1000 70 75 80 85 90 95 100 10 k 100 k GATE DRIVE MAXIMUM DUTY CYCLE vs OSCILLATOR CHARGING RESISTANCE RSET − Oscillator Charging Resistance − Ω 0 0.84 0.80 50 100 0.88 0.96 0.92 1.00 1.04 1.08 1.16 1.12 1.20 150 200 250 Figure 3 MULTIPLIER GAIN CONSTANT vs SUPPLY CURRENT IAC − Supply Current − µA VRMS = 3 V VRMS = 5 V VRMS = 1.5 V VA Out = 3.5 V Figure 4 MULTIPLIER GAIN CONSTANT vs SUPPLY CURRENT IAC − Supply Current − µA 0 0.84 0.80 50 100 0.88 0.96 0.92 1.00 1.04 1.08 1.16 1.12 1.20 150 200 250 VRMS = 1.5 V VRMS = 1.5 V VRMS = 5 V VA Out = 5 V |
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