Voltage References | TL431B

Voltage Reference, Programmable Precision, Shunt Regulator

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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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Obsolete

CAD Model

Pb

A

H

P

SOIC-8

751-07

1

260

TUBE

98

N

Adjustable

2.5

0.4

0.5

1

36

0

70

Price N/A

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TL431BCDMR2G

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Obsolete

CAD Model

Pb

A

H

P

Micro8

846A-02

1

260

REEL

4000

N

Adjustable

2.5

0.4

0.5

1

36

0

70

Price N/A

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TL431BCDR2G

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CAD Model

Pb

A

H

P

SOIC-8

751-07

1

260

REEL

2500

N

Adjustable

2.5

0.4

0.5

1

36

0

70

$0.1741

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TL431BCLPG

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Pb

A

H

P

TO-92

29-10

NA

0

BLKBG

2000

N

Adjustable

2.5

0.4

0.5

1

36

0

70

Price N/A

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TL431BCLPRAG

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CAD Model

Pb

A

H

P

TO-92

29-10

NA

0

REEL

2000

N

Adjustable

2.5

0.4

0.5

1

36

0

70

$0.1164

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TL431BCLPREG

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Pb

A

H

P

TO-92

29-11

NA

0

REEL

2000

N

Adjustable

2.5

0.4

0.5

1

36

0

70

Price N/A

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TL431BCLPRMG

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Pb

A

H

P

TO-92

29-10

NA

0

FNFLD

2000

N

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2.5

0.4

0.5

1

36

0

70

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TL431BCPG

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Pb

A

H

P

PDIP-8

626-05

NA

0

TUBE

50

N

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2.5

0.4

0.5

1

36

0

70

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TL431BIDG

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CAD Model

Pb

A

H

P

SOIC-8

751-07

1

260

TUBE

98

N

Adjustable

2.5

0.4

0.5

1

36

-40

85

$0.1709

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TL431BIDMR2G

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Obsolete

CAD Model

Pb

A

H

P

Micro8

846A-02

1

260

REEL

4000

N

Adjustable

2.5

0.4

0.5

1

36

-40

85

Price N/A

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TL431BIDR2G

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Active

CAD Model

Pb

A

H

P

SOIC-8

751-07

1

260

REEL

2500

N

Adjustable

2.5

0.4

0.5

1

36

-40

85

$0.1709

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TL431BILPG

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CAD Model

Pb

A

H

P

TO-92

29-10

NA

0

BLKBG

2000

N

Adjustable

2.5

0.4

0.5

1

36

-40

85

Price N/A

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TL431BILPRAG

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Active

CAD Model

Pb

A

H

P

TO-92

29-10

NA

0

REEL

2000

N

Adjustable

2.5

0.4

0.5

1

36

-40

85

$0.1747

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TL431BIPG

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Obsolete

CAD Model

Pb

A

H

P

PDIP-8

626-05

NA

0

TUBE

50

N

Adjustable

2.5

0.4

0.5

1

36

-40

85

Price N/A

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TL431BVDG

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CAD Model

Pb

A

H

P

SOIC-8

751-07

1

260

TUBE

98

N

Adjustable

2.5

0.4

0.5

1

36

-40

85

Price N/A

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TL431BVDMR2G

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Obsolete

CAD Model

Pb

A

H

P

Micro8

846A-02

1

260

REEL

4000

N

Adjustable

2.5

0.4

0.5

1

36

-40

85

Price N/A

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TL431BVDR2G

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Active

CAD Model

Pb

A

H

P

SOIC-8

751-07

1

260

REEL

2500

N

Adjustable

2.5

0.4

0.5

1

36

-40

125

$0.1709

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TL431BVLPG

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CAD Model

Pb

A

H

P

TO-92

29-10

NA

0

BLKBG

2000

N

Adjustable

2.5

0.4

0.5

1

36

-40

85

Price N/A

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TL431BVLPRAG

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CAD Model

Pb

A

H

P

TO-92

29-10

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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Obsolete

CAD Model

Pb

A

H

P

PDIP-8

626-05

NA

0

TUBE

50

N

Adjustable

2.5

0.4

0.5

1

36

-40

85

Price N/A

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可靠性数据

Die Related Summary Data

Device: TL431BCDG

Equivalent to wafer fab process: BP STD LINEAR

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等效器件小时

平均故障间隔时间/平均无故障时间（按小时计算）

FITS

BP STD LINEAR

10

12120914040

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Re-calculate Data

Data is based on the following assumptions.

Note: The temperature and confidence level may be adjusted to your requirements.

Disclaimer: A reliability FIT rate calculated using this tool shall not be used for any functional safety purpose. In case a raw FIT rate needs to be estimated for a component which is targeted to be used in a safety critical application (i.e. compliant to ISO 26262 standard) it should be calculated according to generic safety standards (IEC62380, IEC61709, SN29500, FIDES, etc.)

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