NCV431A(2012) データシートの表示（PDF） - ON Semiconductor
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NCV431A Datasheet PDF : 18 Pages
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MC7805
V+
In
Out
Common
TL431, A, B Series, NCV431A, B
V+
Vout
R1
Vout
R1
R2
ǒ Ǔ Vout +
1
)
R1
R2
Vref
Vout(min) + Vref ) 5.0 V
Figure 20. Output Control for a
Three−Terminal Fixed Regulator
R2
ǒ Ǔ Vout +
1
)
R1
R2
Vref
Vin(min) + Vout ) Vbe
Vout(min) + Vref
Figure 21. Series Pass Regulator
RCL
V+
Iout
Iout
+
Vref
RCL
Figure 22. Constant Current Source
V+
Isink
ISink
+
Vref
RS
RS
Figure 23. Constant Current Sink
V+
Vout
V+
Vout
R1
R1
R2
ǒ Ǔ Vout(trip) +
1
)
R1
R2
Vref
Figure 24. TRIAC Crowbar
R2
ǒ Ǔ Vout(trip) +
1
)
R1
R2
Vref
Figure 25. SRC Crowbar
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