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SPX431L Datasheet(PDF) 7 Page - Sipex Corporation |
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SPX431L Datasheet(HTML) 7 Page - Sipex Corporation |
7 / 12 page 7 Date: 5/25/04 SPX431L Precision Adjustable Shunt Regulator © Copyright 2004 Sipex Corporation5 Figure 21. Constant Current Sink, I SINK = VREF/R1 Figure 22. Reference Amplifier for Isolated Feedback in Off-Line DC-DC Converters Figure 23. Precision High Current Series Regulator V OUT = (1+R1/R2)VREF Figure 24. High Current Shunt regulator V OUT = (1+R1/R2)VREF Figure 25. Single Supply Comparator with Temperature Compensated Threshold. V IN threshold = 2.5V. Q1 VIN R2 R1 0.1% ISINK SPX431L R2 0.1% R3 R1 0.1% VOUT SPX431L C2 C1 Isolated Feedback VOUTRTN + R3 sets feedback gain, C1 provides feedback compensation Opto Isolator VIN R1 0.1% SPX431L R3 R2 0.1% C1 R5 R4 VOUT VIN R1 0.1% SPX431L R3 R2 0.1% Q1 VOUT VCC R2 SPX431L VIN VOUT R1 * Resistor values are chosen such that the effect to I REF is negligible. TYPICAL PERFORMANCE CHARACTERISTICS |
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