TL431, A, B Series
Figure 20. Output Control for a
Three–Terminal Fixed Regulator
MC7805
Out
In
Common
R1
Figure 21. Series Pass Regulator
V+
Vout
R1
V+
Vout
R2
R2
+
1
)
V out min
+
V
)
5.0V
ref
V out
R1 V
ref
R2
V out
+
1
)
R1 Vref
R2
V out min
+
V
)
V
ref
be
Figure 22. Constant Current Source
RCL
Figure 23. Constant Current Sink
Isink
V+
Iout
V+
I
I out
+
VRref
Sink
S
+
Rref
V
CL
RS
Figure 24. TRIAC Crowbar
V+
R1
Vout
V+
Figure 25. SRC Crowbar
Vout
R1
R2
R2
V
out(trip)
+
1
)
R1
R2
V
ref
V
out(trip)
+
1
)
R1
R2
V
ref
8
MOTOROLA ANALOG IC DEVICE DATA