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UCC3819PW Datasheet(PDF) 8 Page - Texas Instruments |
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UCC3819PW Datasheet(HTML) 8 Page - Texas Instruments |
8 / 10 page UCC2819, UCC3819 PROGRAMMABLE OUTPUT POWER FACTOR PREREGULATOR SLUS482B - APRIL 2001 − REVISED DECEMBER 2004 8 www.ti.com APPLICATION INFORMATION Figure 2 14 12 10 7.45 7.50 7.55 7.60 7.40 VCC − Supply Voltage − V 13 11 9 REFERENCE VOLTAGE vs SUPPLY VOLTAGE Figure 3 REFERENCE VOLTAGE vs REFERENCE CURRENT 0 5 10 15 20 25 7.495 7.500 7.505 7.510 7.490 IVREF − Reference Current − mA Figure 4 MULTIPLIER OUTPUT CURRENT vs VOLTAGE ERROR AMPLIFIER OUTPUT 0.0 1.0 2.0 3.0 4.0 5.0 50 200 250 350 0 100 300 150 IAC = 150 µ A IAC = 300 µ A IAC = 500 µ A VAOUT − Voltage Error Amplifier Output − V Figure 5 MULTIPLIER GAIN vs VOLTAGE ERROR AMPLIFIER OUTPUT 1.0 2.0 3.0 4.0 5.0 0.7 1.1 1.3 1.5 0.5 0.9 IAC = 300 µ A IAC = 500 µ A IAC = 150 µ A VAOUT − Voltage Error Amplifier Output − V |
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