SPX431CM5(2005) 查看數據表（PDF） - Signal Processing Technologies
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SPX431CM5 Datasheet PDF : 12 Pages
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TYPICAL PERFORMANCE CHARACTERISTICS (continued)
VIN
R2
ISINK
Q1
SPX431A,B,C
R1
0.1%
Figure 21. Constant Current, Sink, ISINK = VREF/R1
VOUT
R3
Opto Isolator
Isolated
Feedback
R1
0.1%
R3 sets feedback gain,
C1 provides feedback
compensation
+
C2
C1
SPX431A,B,C
VOUTRTN
R2
0.1%
Figure 22. Reference Amplifier for Isolated Feedback in
Off-Line DC-DC Converters
VIN
R5
R4
VIN
R1
0.1%
VOUT
R3
SPX431A,B,C
R3
C1
R1
0.1%
R2
0.1%
VOUT
R2
Q1
0.1%
SPX431A,B,C
Figure 23. Precision High Current Series Regulator
VOUT = (1+R1/R2)VREF
VCC
R2
Figure 24. High Current Shunt regulator
VOUT = (1+R1/R2)VREF
* Resistor values are chosen such that the effect to
IREF is negligible.
VIN
R1
SPX431A,B,C
VOUT
Figure 25. Single Supply Comparator with Temperature
Compensated Threshold. VIN threshold = 2.5V
Date: 1/19/05
SPX431A,B,C Precision Adjustable Shunt Regulator
7
© Copyright 2005 Sipex Corporation
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