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NCV431AIDMR2G
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
TL431A, B Series, NCV431A, B Series, SCV431A
www
.onsemi.com
7
Input
Output
t, TIME (
m
s)
Pulse
Generator
f = 100 kHz
0
8.0
4.0
20
0
16
2.0
3.0
12
0
1.0
5.0
Figure 14. Pulse Response
Figure 15. Stability Boundary Conditions
50
220
Output
GND
Input
Monitor
T
A
= 25
°
C
VOL
T
AGE SWING (V)
T
A
= 25
°
C
C
A
B
C
L
, LOAD CAP
ACIT
ANCE
120
80
100
60
0
I
K
, CA
THODE CURRENT (mA)
140
1.0 nF
100
m
F
1.0
m
F
10
m
F
Stable
Stable
40
20
10 nF
100 nF
A
B
D
Unstable
Area
Programmed
V
KA
(V)
A
B
C
D
V
ref
5.0
10
15
Figure 16. T
est Circuit For Curve A
of Stability Boundary Conditions
Figure 17. T
est Circuit For Curves B, C, And D
of Stability Boundary Conditions
V+
I
K
150
I
K
V+
150
C
L
10 k
C
L
Figure 18. Shunt Regulator
Figure 19. High Current Shunt Regulator
V+
V
out
R1
V+
V
out
R1
R2
R2
V
out
+
ǒ
1
)
R1
R2
Ǔ
V
ref
V
out
+
ǒ
1
)
R1
R2
Ǔ
V
ref
TYPICAL APPLICA
TIONS
TL431A, B Series, NCV431A, B Series, SCV431A
www
.onsemi.com
8
Figure 20. Output Control for a
Three−T
erminal
Fixed Regulator
Figure 21. Series Pass Regulator
V+
V
out
R1
R2
Out
In
MC7805
V+
V
out
R2
Common
R1
V
out
+
ǒ
1
)
R1
R2
Ǔ
V
ref
V
out(min)
+
V
ref
)
5.0V
V
out
+
ǒ
1
)
R1
R2
Ǔ
V
ref
V
out(min)
+
V
ref
V
in(min)
+
V
out
)
V
be
Figure 22. Constant Current Source
Figure 23. Constant Current Sink
V+
R
CL
I
out
V+
R
S
I
Sink
+
V
ref
R
S
I
out
+
V
ref
R
CL
I
sink
Figure 24. TRIAC Crowbar
Figure 25. SRC Crowbar
V
out
V+
R2
V+
V
out
R1
R2
R1
V
out(trip)
+
ǒ
1
)
R1
R2
Ǔ
V
ref
V
out(trip)
+
ǒ
1
)
R1
R2
Ǔ
V
ref
TL431A, B Series, NCV431A, B Series, SCV431A
www
.onsemi.com
9
Figure 26. V
oltage Monitor
Figure 27. Single−Supply Comparator with
T
emperature−Compensated Threshold
V
th
= V
ref
V+
V
out
V
in
R1
R3
V+
V
out
R2
R4
l
L.E.D. indicator is `on' when V+ is between the
upper and lower limits.
LowerLimit
+
ǒ
1
)
R1
R2
Ǔ
V
ref
UpperLimit
+
ǒ
1
)
R3
R4
Ǔ
V
ref
V
in
V
out
< V
ref
V+
> V
ref
≈
2.0 V
Figure 28. Linear Ohmmeter
Figure 29. Simple 400 mW Phono Amplifier
*
Thermalloy
*
THM 6024
*
Heatsink on
*
LP Package
*
T
l
= 330 to 8.0
W
8.0
W
+
-
LM1
1
2.0 mA
25 V
25 V
-5.0 V
V
out
Range
V
1.0 M
W
V
100 k
W
V
V
1.0 k
W
R
X
5.0 M
1%
500 k
1%
50 k
1%
5.0 k
1%
47 k
T
one
0.05
m
F
470
m
F
V
olume
1N5305
1.0
m
F
T
I
360 k
330
56 k
10 k
25 k
38 V
+
10 k
W
10 k
Calibrate
R
x
+
V
out
D
W
V
Range
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
NCV431AIDMR2G
Mfr. #:
Buy NCV431AIDMR2G
Manufacturer:
ON Semiconductor
Description:
Voltage References 2.5-36V ADJ 1-100mA
Lifecycle:
New from this manufacturer.
Delivery:
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EMS
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