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Voltage References | TL431B
概览
The TL431, A, B integrated circuits are three-terminal programmable shunt regulator diodes. These monolithic IC voltage references operate as a low temperature coefficient zener which is programmable from Vref to 36 V with two external resistors. These devices exhibit a wide operating current range of 1.0 mA to 100 mA with a typical dynamic impedance of 0.22 W. The characteristics of these references make them excellent replacements for zener diodes in many applications such as digital voltmeters, power supplies, and op amp circuitry. The 2.5 V reference makes it convenient to obtain a stable reference from 5.0 V logic supplies, and since the TL431, A, B operates as a shunt regulator, it can be used as either a positive or negative voltage reference.
- Programmable Output Voltage to 36 V
- Voltage Reference Tolerance: +/- 0.4%, Typ @ 25°C (TL431B)
- Low Dynamic Output Impedance, 0.22 W Typical
- Sink Current Capability of 1.0 mA to 100 mA
- Equivalent Full-Range Temperature Coefficient of 50 ppm/ °C Typical
- Temperature Compensated for Operation over Full Rated Operating Temperature Range
- Low Output Noise Voltage
- Pb-Free Packages are Available
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TL431BCDG
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TL431BCDMR2G
Pb
A
H
P
Micro8
1
260
REEL
4000
N
Adjustable
2.5
0.4
0.5
1
36
0
70
Price N/A
More Details
TL431BCDR2G
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TL431BCLPG
Pb
A
H
P
TO-92
NA
0
BLKBG
2000
N
Adjustable
2.5
0.4
0.5
1
36
0
70
Price N/A
More Details
TL431BCLPRAG
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TL431BCLPREG
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TL431BCLPRMG
Pb
A
H
P
TO-92
NA
0
FNFLD
2000
N
Adjustable
2.5
0.4
0.5
1
36
0
70
Price N/A
More Details
TL431BCPG
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TL431BIDG
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TL431BIDMR2G
Pb
A
H
P
Micro8
1
260
REEL
4000
N
Adjustable
2.5
0.4
0.5
1
36
-40
85
Price N/A
More Details
TL431BIDR2G
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TL431BILPG
Pb
A
H
P
TO-92
NA
0
BLKBG
2000
N
Adjustable
2.5
0.4
0.5
1
36
-40
85
Price N/A
More Details
TL431BILPRAG
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TL431BIPG
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TL431BVDG
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TL431BVDMR2G
Pb
A
H
P
Micro8
1
260
REEL
4000
N
Adjustable
2.5
0.4
0.5
1
36
-40
85
Price N/A
More Details
TL431BVDR2G
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TL431BVLPG
Pb
A
H
P
TO-92
NA
0
BLKBG
2000
N
Adjustable
2.5
0.4
0.5
1
36
-40
85
Price N/A
More Details
TL431BVLPRAG
Pb
A
H
P
TO-92
NA
0
REEL
2000
N
Adjustable
2.5
0.4
0.5
1
36
-40
125
Price N/A
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TL431BVPG
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