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SPX1431 데이터시트(PDF) 6 Page - Sipex Corporation

부품명 SPX1431
상세설명  Precision Adjustable Shunt Regulator
PDF  12 Pages
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제조업체  SIPEX [Sipex Corporation]
홈페이지  http://www.sipex.com
Logo SIPEX - Sipex Corporation

SPX1431 데이터시트(HTML) 6 Page - Sipex Corporation

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6
Rev. 08/13/02
SPX1431 Precision Adjustable Shunt Regulator
© Copyright 2002 Sipex Corporation
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Figure 17. Test Circuit for Stability
Figure 18. Dynamic Output Impedance T
A = 25°C,
I
K = 1 to 100mA
Figure 19. Off State Leakage
Figure 20. Shunt Regulator V
OUT = (1+R1/R2)VREF
150
Ω
10k
Ω
I
K
C
L
R
0.01
0.1
1
10
100
-50
0
50
100
150
TA Ambient Temperature (°C)
VKA = 36V
VREF = 0V
T
A =25 °C
I
K =1mA to 100mA
f - Frequency (Hz)
100
10
1.0
0.1
0.01
1K
10K
100K
1M
10M
R2
0.1%
VIN
R3
R1
0.1%
VOUT
VREF
SPX1431
Figure 21. Constant Current, Sink, I
SINK = VREF/R1
Figure 22. Reference Amplifier for Isolated Feedback in
Off-Line DC-DC Converters
Q1
VIN
R2
R1
0.1%
ISINK
SPX1431
R2
0.1%
R3
R1
0.1%
VOUT
SPX1431
C2
C1
Isolated
Feedback
VOUTRTN
+
R3 sets feedback gain,
C1 provides feedback
compensation
Opto Isolator



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