Voltage Reference, Programmable Precision, Shunt Regulator

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Overview

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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18

Product

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CAD Models

Compliance

Package Type

Case Outline

MSL Type

MSL Temp (°C)

Container Type

Container Qty.

ON Target

Type

V(BR) Typ (V)

Tolerance (%)

IQ Typ (mA)

IR Min (mA)

VF Max (V)

TA Min (°C)

TA Max (°C)

Reference Price

TL431ACD

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Obsolete

CAD Model

Pb

A

H

P

-

-

1

-

TUBE - Tube

98

N

Adjustable

2.5

1

0.5

1

36

0

70

Price N/A

More Details

TL431ACDG

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Active

CAD Model

Pb

A

H

P

SOIC-8

1

260

TUBE

98

N

Adjustable

2.5

1

0.5

1

36

0

70

$0.1544

More Details

TL431ACDMR2G

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Obsolete

CAD Model

Pb

A

H

P

Micro8

1

260

REEL

4000

N

Adjustable

2.5

1

0.5

1

36

0

70

Price N/A

More Details

TL431ACDR2G

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Active

CAD Model

Pb

A

H

P

SOIC-8

1

260

REEL

2500

N

Adjustable

2.5

1

0.5

1

36

0

70

$0.1544

More Details

TL431ACLP

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Obsolete

CAD Model

Pb

A

H

P

-

-

-

-

BLKBG - Bulk Bag

1

N

Adjustable

2.5

1

0.5

1

36

0

70

Price N/A

More Details

TL431ACLPG

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Lifetime

CAD Model

Pb

A

H

P

TO-92

NA

0

BLKBG

2000

N

Adjustable

2.5

1

0.5

1

36

0

70

$0.1719

More Details

TL431ACLPRAG

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Active

CAD Model

Pb

A

H

P

TO-92

NA

0

REEL

2000

N

Adjustable

2.5

1

0.5

1

36

0

70

$0.1712

More Details

TL431ACLPREG

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Obsolete

CAD Model

Pb

A

H

P

TO-92

NA

0

REEL

2000

N

Adjustable

2.5

1

0.5

1

36

0

70

Price N/A

More Details

TL431ACLPRPG

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Last Shipments

CAD Model

Pb

A

H

P

TO-92

NA

0

FNFLD

2000

N

Adjustable

2.5

1

0.5

1

36

0

70

Price N/A

More Details

TL431ACPG

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Obsolete

CAD Model

Pb

A

H

P

PDIP-8

NA

0

TUBE

50

N

Adjustable

2.5

1

0.5

1

36

0

70

Price N/A

More Details

TL431AIDG

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Active

CAD Model

Pb

A

H

P

SOIC-8

1

260

TUBE

98

N

Adjustable

2.5

1

0.5

1

36

-40

85

$0.1475

More Details

TL431AIDMR2G

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Obsolete

CAD Model

Pb

A

H

P

Micro8

1

260

REEL

4000

N

Adjustable

2.5

1

0.5

1

36

-40

85

Price N/A

More Details

TL431AIDR2G

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Active

CAD Model

Pb

A

H

P

SOIC-8

1

260

REEL

2500

N

Adjustable

2.5

1

0.5

1

36

-40

85

$0.1475

More Details

TL431AILPG

Loading...

Active

CAD Model

Pb

A

H

P

TO-92

NA

0

BLKBG

2000

N

Adjustable

2.5

1

0.5

1

36

-40

85

$0.1715

More Details

TL431AILPRAG

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Lifetime

CAD Model

Pb

A

H

P

TO-92

NA

0

REEL

2000

N

Adjustable

2.5

1

0.5

1

36

-40

85

Price N/A

More Details

TL431AILPRMG

Loading...

Obsolete

CAD Model

Pb

A

H

P

TO-92

NA

0

FNFLD

2000

N

Adjustable

2.5

1

0.5

1

36

-40

85

Price N/A

More Details

TL431AILPRPG

Loading...

Last Shipments

CAD Model

Pb

A

H

P

TO-92

NA

0

FNFLD

2000

N

Adjustable

2.5

1

0.5

1

36

-40

85

Price N/A

More Details

TL431AIPG

Loading...

Obsolete

CAD Model

Pb

A

H

P

PDIP-8

NA

0

TUBE

50

N

Adjustable

2.5

1

0.5

1

36

-40

85

Price N/A

More Details

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